Active NPI 1073734935 Individual Practitioner Male Practitioner

Dr. Marcus Mayus , MD

Internal Medicine • Greenwich, CT

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Marcus Mayus, MD is a certified Internal Medicine practicing in Greenwich, CT. With approximately 22 years of clinical experience since graduating from New York Medical College in 2004, Dr. Mayus delivers high-quality medical care to the local community at 81 HOLLY HILL LN FL 3.

Dr. Mayus is affiliated with Marcus Mayus Md Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include chronic care management services, first, established patient outpatient office visit, telephone medical discussion with physician. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

81 Holly Hill Ln Fl 3

Greenwich, CT 068306071

Telephone 2038695515

Fax 2036612918

Associated Practice Facility / Clinic

🏢 Gandelman Cardiology, Pc Facility NPI 1629264353

Medicare Profile & Education

Medical School

New York Medical College

Graduation Year

2004

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Greenwich, CT

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

22 Yrs -0.5 yrs vs City Avg

City Avg: 22.5 Yrs

State Avg: 30.4 Yrs

Regional Practice Density

56 Specialists

Practicing in Greenwich, CT (2753 Statewide)

Telehealth Adoption Rate

17.9% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

35.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mayus (22 Years) 22 Yrs

Greenwich Specialty Average (22.5 Years) 22.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	3,235	423	$100.00	$64.69
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	2,595	933	$175.00	$132.27
99213 Established patient office or other outpatient visit, typically 15 minutes	966	703	$125.00	$94.13
99443 Telephone medical discussion with physician, 21-30 minutes	761	487	$125.00	$121.97
93000 Routine ekg using at least 12 leads including interpretation and report	575	533	$85.00	$14.95
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	453	453	$200.00	$133.71
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	392	272	$100.00	$50.20
99442 Telephone medical discussion with physician, 11-20 minutes	318	250	$100.00	$93.35
G0444 Annual depression screening, 5 to 15 minutes	301	301	$50.00	$19.72
87502 Detection test by nucleic acid for multiple types influenza virus	275	207	$150.00	$93.88
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	225	87	$65.00	$14.90
87634 Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique	219	167	$100.00	$68.58
G0008 Administration of influenza virus vaccine	174	173	$45.00	$33.90
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	155	45	$10.00	$1.24
90653 Vaccine for influenza for injection into muscle	140	140	$100.00	$81.82
81002 Urinalysis, manual test	130	100	$15.00	$3.41
99491 Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month	112	28	$100.00	$87.14
87651 Detection test for Strep (Streptococcus, group A)	105	82	$100.00	$34.39
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	86	86	$225.00	$173.16
96160 Administration and interpretation of patient-focused health risk assessment	53	53	$50.00	$3.18
69210 Removal of impacted ear wax	41	36	$100.00	$50.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	41	37	$225.00	$182.83
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	36	36	$200.00	$169.88
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month	31	29	$150.00	$49.74
J1010 Injection, methylprednisolone acetate, 1 mg	29	21	$25.00	$0.13
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	18	18	$300.00	$170.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	2,733	938	$175.00	$135.90
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	2,001	221	$100.00	$66.38
99213 Established patient office or other outpatient visit, typically 15 minutes	1,155	770	$125.00	$96.55
99443 Telephone medical discussion with physician, 21-30 minutes	776	486	$125.00	$124.48
93000 Routine ekg using at least 12 leads including interpretation and report	524	484	$85.00	$15.61
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	488	488	$200.00	$138.43
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	358	260	$100.00	$50.28
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	303	94	$65.00	$15.25
96160 Administration and interpretation of patient-focused health risk assessment	267	264	$50.00	$2.99
G0444 Annual depression screening, 5 to 15 minutes	253	253	$50.00	$20.07
99491 Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month	249	62	$100.00	$89.88
G0008 Administration of influenza virus vaccine	194	194	$45.00	$32.50
87502 Detection test by nucleic acid for multiple types influenza virus	194	165	$137.89	$93.45
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	193	53	$10.00	$1.51
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	180	180	$100.00	$75.81
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	149	149	$225.00	$176.69
99442 Telephone medical discussion with physician, 11-20 minutes	137	123	$100.00	$96.72
81002 Urinalysis, manual test	135	94	$15.00	$3.39
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	77	68	$225.00	$191.09
J1030 Injection, methylprednisolone acetate, 40 mg	71	47	$25.00	$7.64
87634 Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique	69	61	$100.00	$68.80
99496 Transitional care management services for problem of high complexity	49	44	$300.00	$291.07
69210 Removal of impacted ear wax	46	44	$100.00	$51.40
87651 Detection test for Strep (Streptococcus, group A)	45	37	$100.00	$34.39
94375 Diagnostic testing in a pulmonary function lab	40	40	$85.00	$41.36
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	30	30	$200.00	$177.00
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	21	21	$300.00	$176.63
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	13	13	$100.00	$20.46
99497 Advance care planning, first 30 minutes	11	11	$100.00	$87.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	2,444	873	$174.99	$137.82
99213 Established patient office or other outpatient visit, typically 15 minutes	1,499	771	$125.00	$97.60
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	965	142	$100.00	$68.20
99443 Telephone medical discussion with physician, 21-30 minutes	569	397	$127.77	$125.54
93000 Routine ekg using at least 12 leads including interpretation and report	492	450	$81.25	$15.66
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	458	278	$100.00	$50.67
99442 Telephone medical discussion with physician, 11-20 minutes	407	307	$100.00	$95.40
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	383	383	$200.00	$142.47
G0444 Annual depression screening, 5 to 15 minutes	345	345	$50.00	$20.31
94375 Diagnostic testing in a pulmonary function lab	329	321	$81.81	$42.77
96160 Administration and interpretation of patient-focused health risk assessment	326	316	$45.77	$3.08
99491 Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month	307	142	$100.00	$91.56
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	268	98	$66.31	$15.71
G0008 Administration of influenza virus vaccine	212	212	$44.86	$31.95
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	203	203	$99.70	$70.21
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	173	173	$245.81	$180.80
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	162	44	$11.91	$1.69
81002 Urinalysis, manual test	112	82	$15.00	$3.43
87502 Detection test by nucleic acid for multiple types influenza virus	98	84	$100.00	$93.35
J1030 Injection, methylprednisolone acetate, 40 mg	95	61	$25.00	$6.57
99496 Transitional care management services for problem of high complexity	83	78	$302.11	$301.62
99497 Advance care planning, first 30 minutes	57	57	$100.00	$91.40
87651 Detection test for Strep (Streptococcus, group A)	41	37	$100.00	$34.58
69210 Removal of impacted ear wax	39	34	$97.95	$51.90
99424 Principal care management services for a single high-risk disease, first 30 minutes provided personally by qualified health care professional, per calendar month.	35	35	$100.00	$89.58
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	29	29	$24.66	$7.62
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	27	27	$200.00	$181.56
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	23	13	$45.43	$25.04
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit	19	19	$280.26	$180.90
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$227.27	$195.34

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	2,102	248	$50.00	$44.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,718	714	$175.00	$140.75
99213 Established patient office or other outpatient visit, typically 15 minutes	1,668	777	$124.99	$99.06
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	504	388	$25.00	$7.77
83036 Hemoglobin A1C level	492	384	$25.00	$9.71
85651 Red blood cell sedimentation rate, to detect inflammation, non-automated	421	339	$20.00	$4.27
93000 Routine ekg using at least 12 leads including interpretation and report	405	373	$81.80	$16.29
36415 Insertion of needle into vein for collection of blood sample	366	275	$19.62	$3.00
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	313	313	$183.80	$141.94
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	288	108	$66.46	$15.58
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	194	52	$11.29	$1.96
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	182	139	$99.40	$51.24
G0008 Administration of influenza virus vaccine	149	148	$34.13	$18.52
99442 Telephone medical discussion with physician, 11-20 minutes	120	102	$124.79	$95.57
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	99	99	$267.42	$182.82
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	91	29	$175.00	$110.04
J1030 Injection, methylprednisolone acetate, 40 mg	86	60	$24.65	$5.69
85610 Blood test, clotting time	85	18	$19.18	$4.29
81002 Urinalysis, manual test	81	58	$15.00	$3.48
99496 Transitional care management services for problem of high complexity	81	69	$313.46	$300.08
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	59	15	$48.73	$25.31
94375 Diagnostic testing in a pulmonary function lab	52	52	$75.52	$43.45
90662 Influenza vaccine split virus, preservative free	42	42	$100.00	$65.16
96160 Administration and interpretation of patient-focused health risk assessment	31	31	$33.23	$3.15
69210 Removal of impacted ear wax	30	29	$97.67	$52.38
G0444 Annual depression screening, 5 to 15 minutes	28	28	$51.07	$20.73
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	23	23	$35.00	$19.91
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	19	19	$201.32	$183.53
90471 Administration of 1 vaccine	18	18	$46.39	$18.73
87631 Detection test for multiple types of respiratory virus	18	18	$350.00	$142.63
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	16	$65.00	$61.85
90715 Diphtheria, tetanus, and acellular pertussis vaccine (7 years or older)	14	14	$66.43	$34.39
0202U Test for detection of respiratory disease-causing organisms from back of nose and throat (nasopharynx) specimen, 22 target organisms including severe acute respiratory syndrome coronavirus 2	12	12	$600.00	$416.78
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage	12	12	$100.00	$66.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	2,769	890	$125.00	$82.01
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	2,570	256	$50.00	$45.43
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,293	602	$175.00	$118.18
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	470	355	$25.00	$7.69
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	394	94	$175.00	$111.38
83036 Hemoglobin A1C level	342	295	$25.00	$9.66
85651 Red blood cell sedimentation rate, to detect inflammation, non-automated	332	288	$20.00	$4.25
36415 Insertion of needle into vein for collection of blood sample	317	248	$20.00	$2.98
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	311	107	$65.00	$15.62
93000 Routine ekg using at least 12 leads including interpretation and report	288	280	$85.00	$18.93
G0008 Administration of influenza virus vaccine	278	273	$45.00	$18.32
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	258	258	$130.00	$127.50
90662 Influenza vaccine split virus, preservative free	246	239	$68.50	$54.03
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	212	56	$10.00	$1.99
85610 Blood test, clotting time	188	28	$20.00	$4.25
96160 Administration and interpretation of patient-focused health risk assessment	183	183	$50.00	$2.84
G0444 Annual depression screening, 5 to 15 minutes	183	183	$50.00	$20.15
87633 Detection test for multiple types of respiratory virus	146	124	$700.00	$406.84
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	118	23	$50.00	$25.74
J1030 Injection, methylprednisolone acetate, 40 mg	83	52	$25.00	$6.01
99496 Transitional care management services for problem of high complexity	77	67	$300.00	$264.87
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	67	50	$45.00	$16.07
81002 Urinalysis, manual test	60	48	$15.00	$3.46
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	58	58	$225.00	$180.01
99239 Hospital discharge day management, more than 30 minutes	41	37	$150.00	$116.43
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	26	$75.00	$50.35
69210 Removal of impacted ear wax	25	22	$100.00	$53.32
0202U Test for detection of respiratory disease-causing organisms from back of nose and throat (nasopharynx) specimen, 22 target organisms including severe acute respiratory syndrome coronavirus 2	24	24	$516.67	$298.60
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free	23	23	$100.00	$29.23
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	21	21	$200.00	$182.90
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	19	19	$175.00	$118.94
10120 Removal of foreign body from tissue, accessed beneath the skin	16	15	$250.00	$165.41
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	12	12	$54.17	$19.03
94375 Diagnostic testing in a pulmonary function lab	11	11	$85.00	$43.16
90715 Diphtheria, tetanus, and acellular pertussis vaccine (7 years or older)	11	11	$65.00	$33.53

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	2,131	240	$50.00	$44.78
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,626	688	$175.00	$117.13
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	988	544	$25.00	$8.45
36415 Insertion of needle into vein for collection of blood sample	935	537	$20.00	$2.94
99213 Established patient office or other outpatient visit, typically 15 minutes	891	519	$125.00	$80.05
83036 Hemoglobin A1C level	577	401	$25.00	$10.57
85651 Red blood cell sedimentation rate, to detect inflammation, non-automated	527	383	$20.00	$4.18
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	482	180	$65.00	$18.21
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	480	142	$175.00	$110.58
85610 Blood test, clotting time	374	61	$20.00	$4.25
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	322	97	$10.00	$1.79
87633 Detection test for multiple types of respiratory virus	276	216	$700.00	$451.86
93000 Routine ekg using at least 12 leads including interpretation and report	259	250	$85.00	$18.66
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	233	37	$50.00	$24.96
96160 Administration and interpretation of patient-focused health risk assessment	212	211	$50.00	$3.58
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	207	207	$130.00	$125.93
G0444 Annual depression screening, 5 to 15 minutes	191	191	$50.00	$19.73
G0008 Administration of influenza virus vaccine	185	183	$45.00	$17.96
90662 Influenza vaccine split virus, preservative free	173	171	$50.00	$49.00
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	138	118	$45.00	$16.10
J1030 Injection, methylprednisolone acetate, 40 mg	134	87	$25.00	$6.30
99239 Hospital discharge day management, more than 30 minutes	119	106	$150.00	$112.92
99496 Transitional care management services for problem of high complexity	80	71	$300.00	$250.58
99497 Advance care planning, first 30 minutes	66	66	$100.00	$91.24
81002 Urinalysis, manual test	60	48	$15.00	$3.41
94375 Diagnostic testing in a pulmonary function lab	52	52	$85.00	$43.69
69210 Removal of impacted ear wax	50	42	$100.00	$51.22
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	39	39	$75.00	$49.24
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$225.00	$177.46
99495 Transitional care management services for problem of at least moderate complexity	24	24	$200.00	$177.85
82947 Blood glucose (sugar) level	24	12	$20.00	$4.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	21	13	$125.00	$77.60
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$300.00	$206.58
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	17	17	$205.88	$179.18
94640 Inhalation treatment for airway obstruction or sputum production	17	16	$30.00	$20.35
J7613 Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg	16	15	$50.00	$0.04
94060 Test to measure expiratory airflow and volume changes before and after medication administration	13	12	$125.00	$66.07
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	11	11	$50.00	$17.48
90471 Administration of 1 vaccine	11	11	$45.00	$18.22
90715 Diphtheria, tetanus, and acellular pertussis vaccine (7 years or older)	11	11	$65.00	$31.83

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,335	617	$175.00	$114.85
36415 Insertion of needle into vein for collection of blood sample	1,052	577	$20.00	$2.94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,043	209	$125.00	$75.99
99213 Established patient office or other outpatient visit, typically 15 minutes	1,008	518	$125.00	$78.17
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	995	213	$50.00	$45.13
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	959	242	$175.00	$109.50
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	912	541	$25.00	$9.40
83036 Hemoglobin A1C level	557	397	$25.00	$11.75
85651 Red blood cell sedimentation rate, to detect inflammation, non-automated	480	348	$20.00	$4.29
85610 Blood test, clotting time	457	61	$20.00	$4.75
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	375	152	$65.00	$22.37
99239 Hospital discharge day management, more than 30 minutes	343	220	$150.00	$113.83
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	263	34	$50.00	$23.52
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	236	65	$10.00	$1.95
87633 Detection test for multiple types of respiratory virus	198	167	$700.00	$502.96
G0008 Administration of influenza virus vaccine	193	189	$45.00	$22.26
90662 Influenza vaccine split virus, preservative free	181	177	$50.00	$48.96
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	173	173	$130.00	$125.55
93000 Routine ekg using at least 12 leads including interpretation and report	132	126	$85.00	$18.48
J1030 Injection, methylprednisolone acetate, 40 mg	106	80	$25.00	$6.57
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	96	96	$75.00	$47.42
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	90	74	$300.00	$212.74
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	78	69	$45.00	$16.20
81002 Urinalysis, manual test	62	49	$15.00	$3.41
99495 Transitional care management services for problem of at least moderate complexity	61	52	$200.00	$176.64
G0444 Annual depression screening, 5 to 15 minutes	59	59	$50.00	$19.48
96160 Administration and interpretation of patient-focused health risk assessment	59	59	$50.00	$4.33
99497 Advance care planning, first 30 minutes	53	52	$100.00	$89.91
99496 Transitional care management services for problem of high complexity	48	43	$300.00	$249.99
69210 Removal of impacted ear wax	47	42	$100.00	$51.91
99238 Hospital discharge day management, 30 minutes or less	45	42	$135.00	$76.14
90471 Administration of 1 vaccine	23	23	$45.00	$22.37
94375 Diagnostic testing in a pulmonary function lab	22	22	$85.00	$43.64
J1885 Injection, ketorolac tromethamine, per 15 mg	19	18	$10.00	$0.58
99487 Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month	14	12	$120.00	$100.68
94640 Inhalation treatment for airway obstruction or sputum production	13	13	$30.00	$20.93
J1040 Injection, methylprednisolone acetate, 80 mg	12	11	$25.00	$13.11
90715 Diphtheria, tetanus, and acellular pertussis vaccine (7 years or older)	12	12	$65.00	$30.92
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	12	12	$50.00	$17.48
90714 Vaccine for tetanus and diphtheria toxoids injection into muscle, patient 7 years or older	12	12	$50.00	$23.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,445	263	$125.14	$76.15
99213 Established patient office or other outpatient visit, typically 15 minutes	1,334	612	$125.00	$77.89
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	1,072	258	$175.00	$109.85
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	952	524	$175.00	$114.24
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	772	116	$50.00	$45.14
36415 Insertion of needle into vein for collection of blood sample	689	441	$20.00	$2.93
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	625	413	$25.00	$10.45
99239 Hospital discharge day management, more than 30 minutes	336	225	$150.00	$114.14
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	335	126	$65.00	$27.93
85610 Blood test, clotting time	315	48	$20.00	$5.28
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	233	62	$10.00	$2.82
G0008 Administration of influenza virus vaccine	217	216	$45.00	$27.77
90662 Influenza vaccine split virus, preservative free	208	207	$50.00	$47.99
85651 Red blood cell sedimentation rate, to detect inflammation, non-automated	194	174	$20.00	$4.77
83036 Hemoglobin A1C level	192	175	$25.00	$13.05
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	151	29	$50.00	$21.96
93000 Routine ekg using at least 12 leads including interpretation and report	146	142	$85.00	$18.50
99238 Hospital discharge day management, 30 minutes or less	126	111	$135.00	$76.98
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	109	109	$130.00	$123.20
J1030 Injection, methylprednisolone acetate, 40 mg	103	79	$25.00	$5.72
81002 Urinalysis, manual test	98	77	$15.00	$3.43
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	77	77	$75.00	$46.62
99495 Transitional care management services for problem of at least moderate complexity	77	64	$200.00	$171.19
82947 Blood glucose (sugar) level	76	13	$20.00	$5.28
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	70	63	$300.00	$214.51
99496 Transitional care management services for problem of high complexity	64	59	$300.00	$244.09
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	63	57	$45.00	$16.11
87804 Detection test by immunoassay with direct visual observation for influenza virus	57	54	$35.00	$16.11
99487 Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month	48	28	$120.00	$100.04
94375 Diagnostic testing in a pulmonary function lab	44	43	$85.00	$43.38
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes	33	15	$90.00	$73.53
69210 Removal of impacted ear wax	30	27	$100.00	$52.34
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	30	29	$250.00	$144.97
87633 Detection test for multiple types of respiratory virus	28	28	$700.00	$560.29
99497 Advance care planning, first 30 minutes	27	27	$100.00	$86.70
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$225.00	$175.69
99489 Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month	17	13	$60.00	$50.17
99358 Prolonged patient service without direct patient contact first hour	15	15	$150.00	$118.36
J1885 Injection, ketorolac tromethamine, per 15 mg	13	12	$10.00	$0.71
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment	12	12	$200.00	$177.28

Medical Specialties & State Licenses

CMS Verified: 2022-05-31

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CT 045877

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Hospital & Practice Group Affiliations

Marcus Mayus Md Inc

81 Holly Hill Ln, Greenwich, CT 068306071

Phone: 2038848420

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

4 Associated Practitioners

Dr. Glenn Gandelman , MD

Internal Medicine - Cardiovascular Disease

NPI 1033117437

Doctor of Medicine (M.D.)

Dr. Francis Walsh , MD

Internal Medicine

NPI 1124174347

Doctor of Medicine (M.D.)

Dr. Bartel Crisafi , MD

Internal Medicine - Cardiovascular Disease

NPI 1497846646

Doctor of Medicine (M.D.)

Timothy Brandriff , PA

Physician Assistant

NPI 1740320092

Physician Assistant

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Business Mailing Address May 31, 2022

Registered at 81 HOLLY HILL LN FL 3, GREENWICH, CT 068306071 (Tel: 2038848420)

📍

Updated Practice Location December 06, 2021

Registered at 81 HOLLY HILL LN FL 3, GREENWICH, CT 068306071 (Tel: 2038695515)

✅

NPI Profile Active May 23, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location May 23, 2008

Registered at 31 RIVER RD, SUITE 200, COS COB, CT 068072152 (Tel: 2036619433)

📍

Updated Business Mailing Address May 23, 2008

Registered at 31 RIVER RD, SUITE 200, COS COB, CT 068072152 (Tel: 2036619433)

👤

Provider Name / Credentials Updated May 23, 2008

Recorded as MARCUS MAYUS, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 23, 2008

Internal Medicine (License #045877 in CT)

🟢

Initial NPI Registration & Enumeration May 01, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1073734935

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: May 01, 2007

Last Update: May 31, 2022

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

81 Holly Hill Ln Fl 3

Greenwich, CT 068306071

Phone: 2038848420

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.