Active NPI 1750791760 Individual Practitioner Male Practitioner

John Gemma

Internal Medicine • Tulsa, OK

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

John Gemma is a certified Internal Medicine practicing in Tulsa, OK. With approximately 12 years of clinical experience since completing medical education in 2014, John Gemma delivers high-quality medical care to the local community at 4502 E 41ST ST.

John Gemma is affiliated with Tulsa Hospital Medicine Physicians Group, Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, initial hospital care with moderate level of 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

4502 E 41st St

Tulsa, OK 741352536

Telephone 9186194400

Associated Practice Facility / Clinic

🏢 Board Of Regents Of The University Of Oklahoma Ou Physicians Tulsa Facility NPI 1154385730

Medicare Profile & Education

Medical School

Other

Graduation Year

2014

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Tulsa, OK

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

12 Yrs -8.0 yrs vs City Avg

City Avg: 20.0 Yrs

State Avg: 26.0 Yrs

Regional Practice Density

326 Specialists

Practicing in Tulsa, OK (1179 Statewide)

Telehealth Adoption Rate

19.6% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

81.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Gemma (12 Years) 12 Yrs

Tulsa Specialty Average (20.0 Years) 20.0 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	234	101	$616.00	$114.91
99239 Hospital discharge day management, more than 30 minutes	70	69	$595.00	$110.86
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	29	28	$900.00	$168.29
99238 Hospital discharge day management, 30 minutes or less	17	17	$422.00	$78.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	157	61	$638.09	$114.69
99239 Hospital discharge day management, more than 30 minutes	63	63	$680.25	$109.84
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	45	32	$474.00	$76.21
99238 Hospital discharge day management, 30 minutes or less	36	36	$480.39	$77.40
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	23	23	$1111.48	$167.16

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	95	60	$378.42	$68.43
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	85	53	$664.85	$98.69
99239 Hospital discharge day management, more than 30 minutes	60	59	$676.92	$100.76
99217 Hospital observation care on day of discharge	55	55	$444.40	$68.37
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	19	19	$1236.32	$190.97
99238 Hospital discharge day management, 30 minutes or less	17	17	$399.88	$68.91
99225 Subsequent observation care, typically 25 minutes per day	17	13	$435.76	$68.28
99220 Hospital observation care, typically 70 minutes	17	17	$1150.88	$171.86

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	308	150	$150.00	$67.80
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	196	102	$216.00	$98.59
99239 Hospital discharge day management, more than 30 minutes	110	107	$222.00	$100.50
99231 Follow-up hospital inpatient care per day, typically 15 minutes	61	11	$82.00	$37.21
99217 Hospital observation care on day of discharge	47	47	$150.00	$69.43
99238 Hospital discharge day management, 30 minutes or less	38	37	$150.00	$69.44
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	26	$422.00	$193.59
99220 Hospital observation care, typically 70 minutes	19	19	$385.00	$175.85

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	320	157	$150.00	$70.30
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	305	151	$216.00	$100.29
99239 Hospital discharge day management, more than 30 minutes	121	121	$222.00	$101.25
99217 Hospital observation care on day of discharge	40	40	$150.00	$69.58
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	26	26	$422.00	$200.19
99238 Hospital discharge day management, 30 minutes or less	18	18	$150.00	$71.72
99220 Hospital observation care, typically 70 minutes	17	17	$385.00	$182.36
99497 Advance care planning, first 30 minutes	12	12	$195.00	$77.62

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	512	224	$150.00	$66.00
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	284	139	$216.00	$99.41
99239 Hospital discharge day management, more than 30 minutes	156	155	$222.00	$100.70
99217 Hospital observation care on day of discharge	71	71	$150.00	$68.55
99238 Hospital discharge day management, 30 minutes or less	42	42	$150.00	$70.24
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	37	37	$422.00	$194.01
99220 Hospital observation care, typically 70 minutes	26	26	$385.00	$179.58
99356 Prolonged inpatient or observation hospital service, first hour	19	19	$196.00	$89.01
99497 Advance care planning, first 30 minutes	12	11	$195.00	$76.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	437	172	$216.00	$98.27
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	417	172	$150.00	$69.84
99239 Hospital discharge day management, more than 30 minutes	126	121	$222.00	$102.53
99238 Hospital discharge day management, 30 minutes or less	67	64	$150.00	$69.42
99217 Hospital observation care on day of discharge	49	49	$150.00	$70.49
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	48	48	$422.00	$192.91
99356 Prolonged inpatient or observation hospital service, first hour	25	19	$196.00	$78.52
99220 Hospital observation care, typically 70 minutes	16	16	$385.00	$181.02

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	182	73	$150.00	$68.25
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	81	39	$216.00	$100.31
99238 Hospital discharge day management, 30 minutes or less	40	38	$150.00	$69.23
99239 Hospital discharge day management, more than 30 minutes	17	15	$222.00	$102.68
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	11	11	$422.00	$194.74

Medical Specialties & State Licenses

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License OK 5744

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

Tulsa Hospital Medicine Physicians Group, Llc

1120 S Utica Ave, Tulsa, OK 741044012

Phone: 9185791000

Tulsa Hospital Medicine Physicians Group, Llc

10502 N 110th E Ave, Owasso, OK 740556655

Phone: 9185792300

Practice Associates & Co-Workers

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

40 Associated Practitioners

Jessica Luetkemeyer , PA-C

Physician Assistant

NPI 1003111972

Physician Assistant (Certified)

Dr. Michael Figueiredo , MD

Emergency Medicine

NPI 1003159690

Doctor of Medicine (M.D.)

Dr. Peter Madden , MD

Internal Medicine

NPI 1003203001

Doctor of Medicine (M.D.)

Dr. Thao Tran , DO

Internal Medicine

NPI 1003203662

Doctor of Osteopathic Medicine (D.O.)

Amna Obaid

Student in an Organized Health Care Education/Training Program

NPI 1003504358

Dr. Angela Bolz , DO

Internal Medicine - Nephrology

NPI 1013119650

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

12 Historical Events

✅

NPI Profile Active June 27, 2017

NPI status registered as active in NPPES database

📍

Updated Business Mailing Address June 27, 2017

Registered at 1705 E 19TH ST, STE 302, TULSA, OK 741045410 (Tel: 9187487585)

📍

Updated Practice Location June 27, 2017

Registered at 4502 E 41ST ST, TULSA, OK 741352536 (Tel: 9186194400)

👤

Provider Name / Credentials Updated June 27, 2017

Recorded as JOHN GEMMA

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 27, 2017

Internal Medicine (License #5744 in OK)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) March 27, 2017

Internal Medicine (License #5744 in OK)

✅

NPI Profile Active February 06, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location February 06, 2015

Registered at 4502 E 41ST ST, TULSA, OK 741352536 (Tel: 9186194400)

📍

Updated Business Mailing Address February 06, 2015

Registered at 4502 E 41ST ST, TULSA, OK 741352536

👤

Provider Name / Credentials Updated February 06, 2015

Recorded as JOHN GEMMA

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 06, 2015

Student in an Organized Health Care Education/Training Program

🟢

Initial NPI Registration & Enumeration April 29, 2014

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 John Gemma. 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: 1750791760

Entity Type:

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

Enumeration Date: April 29, 2014

Last Update: June 27, 2017

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

1705 E 19th St, Ste 302

Tulsa, OK 741045410

Phone: 9187487585

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.