Active NPI 1194716985 Individual Practitioner Male Practitioner

Dr. John Gottfried Mayer , MD

Orthopaedic Surgery • Gurnee, IL

Professional Overview & Biography Verified Profile Summary

Dr. John Mayer, MD is a registered healthcare professional specializing in Orthopaedic Surgery in Gurnee, IL. Practice services are available at 105 N GREENLEAF ST under active NPI credentials.

Frequently performed procedures and clinical services include injection, triamcinolone acetonide, not otherwise specified, 10 mg, established patient outpatient office visit, aspiration and/or injection of fluid from large joint. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

105 N Greenleaf St

Gurnee, IL 600313326

Telephone 8476233090

Fax 8476239620

Associated Practice Facility / Clinic

🏢 Greenleaf Orthopaedic Associates, S.c. Facility NPI 1538277736

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Gurnee, IL

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 24.2 Yrs

State Avg: 27.0 Yrs

Regional Practice Density

12 Specialists

Practicing in Gurnee, IL (1064 Statewide)

Telehealth Adoption Rate

8.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

52.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	182	33	$20.00	$1.01
99213 Established patient office or other outpatient visit, typically 15 minutes	59	50	$151.00	$88.08
20610 Aspiration and/or injection of fluid from large joint	35	28	$157.67	$68.98
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	18	18	$230.00	$107.68
73564 X-ray of knee, 4 or more views	16	14	$72.47	$34.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	648	110	$20.00	$1.06
99213 Established patient office or other outpatient visit, typically 15 minutes	154	128	$151.00	$85.69
20610 Aspiration and/or injection of fluid from large joint	116	90	$151.57	$68.11
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	78	78	$230.00	$109.48
73564 X-ray of knee, 4 or more views	35	29	$73.19	$35.79
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	35	31	$92.81	$55.71
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	24	$221.00	$125.85
73502 X-ray of hip, 2-3 views	23	19	$61.18	$36.14
72100 X-ray of lower and sacral spine, 2-3 views	21	21	$54.93	$29.17
20526 Injection of carpal tunnel	14	11	$164.00	$81.02
99202 New patient office or other outpatient visit, typically 20 minutes	14	14	$159.00	$71.31
20550 Injection into tendon or ligament	13	11	$127.00	$49.26
27447 Replacement of knee joint, both sides of knee	11	11	$3296.82	$1257.25
73565 X-ray of both knees while standing	11	11	$59.32	$31.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	890	133	$20.00	$1.14
99213 Established patient office or other outpatient visit, typically 15 minutes	229	162	$151.00	$89.74
20610 Aspiration and/or injection of fluid from large joint	175	121	$159.14	$72.09
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	127	127	$230.00	$110.46
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	68	48	$92.81	$54.78
73564 X-ray of knee, 4 or more views	45	40	$72.47	$36.08
73502 X-ray of hip, 2-3 views	32	27	$61.18	$36.77
72100 X-ray of lower and sacral spine, 2-3 views	30	29	$54.93	$29.68
99202 New patient office or other outpatient visit, typically 20 minutes	22	22	$159.00	$72.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	20	20	$221.00	$127.56
73030 X-ray of shoulder, minimum of 2 views	17	13	$47.62	$25.78
73565 X-ray of both knees while standing	14	13	$59.32	$32.64
99221 Initial hospital inpatient care per day, typically 30 minutes	13	12	$207.85	$98.47
27447 Replacement of knee joint, both sides of knee	12	11	$3571.55	$1336.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	908	145	$20.00	$1.27
99213 Established patient office or other outpatient visit, typically 15 minutes	236	173	$151.00	$91.71
20610 Aspiration and/or injection of fluid from large joint	171	128	$159.11	$71.70
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	117	117	$230.00	$112.63
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	74	62	$92.81	$55.78
73564 X-ray of knee, 4 or more views	58	44	$72.47	$34.77
73502 X-ray of hip, 2-3 views	52	46	$61.18	$36.07
72100 X-ray of lower and sacral spine, 2-3 views	45	45	$54.93	$29.13
99202 New patient office or other outpatient visit, typically 20 minutes	30	30	$159.00	$72.51
20550 Injection into tendon or ligament	22	20	$127.00	$53.42
73610 X-ray of ankle, minimum of 3 views	19	11	$56.39	$24.89
73030 X-ray of shoulder, minimum of 2 views	18	15	$47.62	$25.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	920	142	$20.00	$1.45
99213 Established patient office or other outpatient visit, typically 15 minutes	257	170	$151.00	$73.37
20610 Aspiration and/or injection of fluid from large joint	178	122	$155.74	$68.17
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	139	139	$230.00	$107.69
73502 X-ray of hip, 2-3 views	55	44	$61.18	$33.81
72100 X-ray of lower and sacral spine, 2-3 views	49	49	$54.93	$25.74
99202 New patient office or other outpatient visit, typically 20 minutes	44	44	$159.00	$76.34
73564 X-ray of knee, 4 or more views	44	41	$72.47	$31.70
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	40	37	$92.81	$44.49
99221 Initial hospital inpatient care per day, typically 30 minutes	39	36	$207.85	$100.61
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	35	$221.00	$109.28
73030 X-ray of shoulder, minimum of 2 views	34	21	$48.23	$23.73
73565 X-ray of both knees while standing	15	15	$59.32	$29.85
27236 Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement	15	15	$2566.69	$1220.75

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	1,028	189	$20.00	$1.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	337	337	$230.00	$107.56
99213 Established patient office or other outpatient visit, typically 15 minutes	277	212	$151.00	$73.10
20610 Aspiration and/or injection of fluid from large joint	219	170	$146.51	$63.60
72100 X-ray of lower and sacral spine, 2-3 views	62	61	$54.93	$25.03
73564 X-ray of knee, 4 or more views	58	56	$72.47	$29.46
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	50	48	$221.00	$108.48
73502 X-ray of hip, 2-3 views	47	42	$61.18	$31.40
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	44	38	$92.81	$43.93
73030 X-ray of shoulder, minimum of 2 views	38	22	$46.91	$20.16
99221 Initial hospital inpatient care per day, typically 30 minutes	34	32	$207.85	$101.34
73100 X-ray of wrist, 2 views	28	13	$52.01	$23.25
99202 New patient office or other outpatient visit, typically 20 minutes	26	26	$159.00	$76.21
73565 X-ray of both knees while standing	25	25	$59.32	$28.20
73610 X-ray of ankle, minimum of 3 views	20	16	$57.28	$24.77
20526 Injection of carpal tunnel	12	11	$164.00	$77.67
27245 Treatment of broken neck of thigh bone with bone implant	12	12	$2638.70	$1251.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	684	130	$6.95	$1.83
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	351	41	$103.00	$24.76
99213 Established patient office or other outpatient visit, typically 15 minutes	248	208	$221.10	$72.44
97140 Therapy procedure using manual technique, each 15 minutes	204	36	$94.00	$21.67
97112 Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes	177	29	$107.00	$33.45
20610 Aspiration and/or injection of fluid from large joint	145	119	$256.43	$67.20
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	106	106	$278.98	$107.87
73502 X-ray of hip, 2-3 views	88	78	$158.50	$38.99
73564 X-ray of knee, 4 or more views	84	67	$158.00	$36.03
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	51	51	$327.76	$109.66
73562 X-ray of knee, 3 views	47	37	$149.00	$36.56
97530 Therapy procedure using functional activities	45	17	$110.00	$34.83
72100 X-ray of lower and sacral spine, 2-3 views	38	38	$105.47	$29.55
97161 Evaluation of physical therapy, typically 20 minutes	27	27	$161.00	$82.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$337.00	$164.42
G0180 Physician or allowed practitioner 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 and	14	14	$172.00	$54.55
73030 X-ray of shoulder, minimum of 2 views	14	14	$95.35	$24.13
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	13	12	$332.00	$106.24
27447 Replacement of knee joint, both sides of knee	13	13	$7799.51	$1489.21
27130 Replacement of thigh bone and hip joint with prosthesis	11	11	$8112.00	$1351.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
97110 Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes	1,073	145	$103.00	$24.97
97140 Therapy procedure using manual technique, each 15 minutes	859	137	$94.00	$22.35
97112 Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes	606	121	$107.00	$32.28
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	454	90	$4.00	$1.85
99213 Established patient office or other outpatient visit, typically 15 minutes	427	325	$233.54	$72.66
20610 Aspiration and/or injection of fluid from large joint	266	184	$272.97	$65.89
97530 Therapy procedure using functional activities	206	79	$110.00	$31.86
J1040 Injection, methylprednisolone acetate, 80 mg	193	135	$29.53	$10.51
73502 X-ray of hip, 2-3 views	166	135	$189.00	$41.30
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	148	139	$342.00	$107.70
73564 X-ray of knee, 4 or more views	132	107	$183.00	$39.71
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	111	111	$348.00	$109.37
73562 X-ray of knee, 3 views	96	77	$149.00	$36.00
97161 Evaluation of physical therapy, typically 20 minutes	78	72	$161.00	$81.43
72100 X-ray of lower and sacral spine, 2-3 views	66	66	$156.00	$35.23
27447 Replacement of knee joint, both sides of knee	47	46	$8157.45	$1462.99
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	39	38	$330.90	$104.10
27130 Replacement of thigh bone and hip joint with prosthesis	32	32	$8112.00	$1389.11
G0180 Physician or allowed practitioner 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 and	26	26	$172.00	$53.65
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	12	$127.00	$39.21
73030 X-ray of shoulder, minimum of 2 views	16	11	$159.00	$27.87
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	14	$139.00	$44.05
97162 Evaluation for physical therapy, typically 30 minutes	14	14	$172.00	$81.80
20550 Injection into tendon or ligament	12	11	$192.00	$52.33

Medical Specialties & State Licenses

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Bcbs Of Illinois

04915144 (IL)

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Roger Collins , MD

Orthopaedic Surgery

NPI 1073504973

Doctor of Medicine (M.D.)

Christina Labrie , ATC

Specialist/Technologist - Athletic Trainer

NPI 1912307521

Certified Athletic Trainer

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active March 11, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location March 11, 2008

Registered at 105 N GREENLEAF ST, GURNEE, IL 600313326 (Tel: 8476233090)

📍

Updated Business Mailing Address March 11, 2008

Registered at 105 N GREENLEAF ST, GURNEE, IL 600313326 (Tel: 8476233090)

👤

Provider Name / Credentials Updated March 11, 2008

Recorded as JOHN MAYER, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 11, 2008

Orthopaedic Surgery

🟢

Initial NPI Registration & Enumeration November 02, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. John Mayer. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1194716985

Entity Type:

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

Enumeration Date: November 02, 2005

Last Update: March 11, 2008

Sole Proprietor: No

Update or Correct Profile

Mailing Address

105 N Greenleaf St

Gurnee, IL 600313326

Phone: 8476233090

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.