Active NPI 1205818853 Individual Practitioner Female Practitioner

Dr. Marilyn Barbara Mayer , MD

Internal Medicine • Cypress, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Marilyn Mayer, MD is a certified Internal Medicine practicing in Cypress, TX. With approximately 36 years of clinical experience since graduating from University Of Texas Medical School At Houston in 1990, Dr. Mayer delivers high-quality medical care to the local community at 21216 NORTHWEST FWY.

Dr. Mayer is affiliated with North Cypress Medical Partners Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, subsequent hospital care with moderate levelof medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

21216 Northwest Fwy
Suite 560

Cypress, TX 774294695

Telephone 8327562976

Fax 2814694572

Associated Practice Facility / Clinic

🏢 Barnard Family Health Centers Pa Facility NPI 1043205636

Medicare Profile & Education

Medical School

University Of Texas Medical School At Houston

Graduation Year

1990

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Cypress, TX

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

36 Yrs +15.5 yrs vs City Avg

City Avg: 20.5 Yrs

State Avg: 26.2 Yrs

Regional Practice Density

39 Specialists

Practicing in Cypress, TX (9538 Statewide)

Telehealth Adoption Rate

41.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

58.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Mayer (36 Years) 36 Yrs

Cypress Specialty Average (20.5 Years) 20.5 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	483	228	$275.00	$129.61
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	163	163	$298.00	$131.35
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	143	19	$186.00	$79.45
99213 Established patient office or other outpatient visit, typically 15 minutes	109	76	$187.00	$90.83
G0179 Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp	45	20	$106.00	$42.08
90658 Influenza vaccine, trivalent, 0.5 ml dosage	43	43	$50.00	$21.42
G0008 Administration of influenza virus vaccine	43	43	$64.00	$32.75
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	21	15	$352.00	$132.01
81002 Urinalysis, manual test	20	15	$50.00	$3.41
93000 Routine ekg using at least 12 leads including interpretation and report	20	20	$44.00	$14.57
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	17	13	$47.06	$15.61

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	435	222	$275.00	$129.71
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	154	154	$298.00	$131.03
99213 Established patient office or other outpatient visit, typically 15 minutes	138	90	$187.00	$87.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	90	24	$186.00	$80.42
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	39	39	$50.00	$20.44
G0008 Administration of influenza virus vaccine	39	39	$64.00	$31.28
G0179 Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp	28	17	$106.00	$41.85
93000 Routine ekg using at least 12 leads including interpretation and report	18	18	$44.00	$14.75
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	13	12	$352.00	$132.43

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	460	234	$275.00	$131.85
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	141	141	$298.00	$135.16
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	129	27	$186.00	$72.66
99213 Established patient office or other outpatient visit, typically 15 minutes	129	86	$187.00	$89.98
G0008 Administration of influenza virus vaccine	34	34	$64.00	$30.30
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	34	34	$50.00	$20.07
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	18	13	$352.00	$137.82
93000 Routine ekg using at least 12 leads including interpretation and report	14	14	$44.00	$14.79

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	491	244	$275.00	$134.36
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	143	31	$186.00	$74.01
99213 Established patient office or other outpatient visit, typically 15 minutes	135	94	$187.00	$93.50
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	123	123	$298.00	$137.94
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	45	45	$50.00	$19.91
G0008 Administration of influenza virus vaccine	44	44	$64.00	$17.57
G0179 Physician re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians to affirm the initial imp	30	16	$106.00	$42.67
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	30	13	$108.00	$42.45
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	20	$352.00	$133.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$420.00	$174.75

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	500	239	$275.00	$112.23
99213 Established patient office or other outpatient visit, typically 15 minutes	136	94	$187.00	$77.10
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	80	19	$108.00	$43.37
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	78	78	$298.00	$120.57
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	66	20	$186.00	$75.54
G0008 Administration of influenza virus vaccine	47	47	$64.00	$17.16
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	46	46	$50.00	$19.17
93000 Routine ekg using at least 12 leads including interpretation and report	21	21	$44.00	$17.71
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	20	17	$352.00	$143.86
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	15	15	$420.00	$171.06
G0506 Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service)	14	14	$162.00	$65.06
99239 Hospital discharge day management, more than 30 minutes	13	13	$276.00	$111.88

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	620	248	$275.00	$110.23
99213 Established patient office or other outpatient visit, typically 15 minutes	95	70	$187.00	$75.35
G0008 Administration of influenza virus vaccine	59	59	$64.00	$16.82
90688 Vaccine for influenza for administration into muscle, 0.5 ml dosage	59	59	$50.00	$17.48
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	57	57	$298.00	$117.39
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	33	13	$186.00	$73.69
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$420.00	$166.97
93000 Routine ekg using at least 12 leads including interpretation and report	13	13	$44.00	$17.28

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	496	219	$275.00	$106.12
99213 Established patient office or other outpatient visit, typically 15 minutes	199	110	$187.00	$71.94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	58	19	$186.00	$71.79
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	53	53	$298.00	$114.79
Q2035 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (afluria)	36	36	$23.33	$17.35
G0008 Administration of influenza virus vaccine	35	35	$64.09	$20.73
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$420.00	$162.30
93000 Routine ekg using at least 12 leads including interpretation and report	18	18	$44.00	$16.75
99495 Transitional care management services for problem of at least moderate complexity	13	13	$419.00	$161.58
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$352.00	$134.74

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	536	226	$185.73	$106.59
99213 Established patient office or other outpatient visit, typically 15 minutes	254	146	$144.67	$72.87
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	199	47	$22.71	$19.94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	55	17	$93.55	$69.69
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	46	46	$204.41	$114.28
Q2037 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluvirin)	42	42	$40.00	$17.34
G0008 Administration of influenza virus vaccine	41	41	$64.00	$25.60
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	28	28	$315.18	$163.00
93000 Routine ekg using at least 12 leads including interpretation and report	26	26	$47.00	$16.90
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$174.50	$123.73

Medical Specialties & State Licenses

CMS Verified: 2025-06-26

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License TX J2191

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

North Cypress Medical Partners Inc

21216 Northwest Fwy, Cypress, TX 774294699

North Cypress Medical Partners Inc

21216 Northwest Fwy, Cypress, TX 774294697

Phone: 2814693949

North Cypress Medical Partners Inc

21216 Northwest Fwy, Cypress, TX 774294695

Phone: 2819495201

Practice Associates & Co-Workers

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

3 Associated Practitioners

Dr. Sheriev Boctor , DO

Family Medicine

NPI 1013021195

Doctor of Osteopathic Medicine (D.O.)

Dr. Ronald Taylor , MD

Internal Medicine - Geriatric Medicine

NPI 1023091402

Doctor of Medicine (M.D.)

Dr. Huy Nguyen , MD

Internal Medicine

NPI 1235383290

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active October 03, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location October 03, 2007

Registered at 21216 NORTHWEST FWY, SUITE 560, CYPRESS, TX 774294695 (Tel: 2814693949)

📍

Updated Business Mailing Address October 03, 2007

Registered at 21216 NORTHWEST FWY, SUITE 560, CYPRESS, TX 774294695 (Tel: 2814693949)

👤

Provider Name / Credentials Updated October 03, 2007

Recorded as MARILYN MAYER, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 03, 2007

Internal Medicine (License #J2191 in TX)

🟢

Initial NPI Registration & Enumeration November 18, 2005

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: 1205818853

Entity Type:

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

Enumeration Date: November 18, 2005

Last Update: June 26, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

21216 Northwest Fwy, Suite 560

Cypress, TX 774294695

Phone: 8327562976

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.