Doctor profile · Federal record
Dr. John Gemma
Internal Medicine Physician (CMS: Internal Medicine) · Tulsa, OK
- NPI 1750791760
- Accepts Medicare
- 12 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
4502 E 41St St
Tulsa, OK 741352536
(918) 619-4400 - Mailing address
-
1705 E 19Th St, Ste 302
Tulsa, OK 741045410
Credentials & registration
- NPI registered
- April 2014 — 12 yrs on file
- Profile last updated
- June 27, 2017
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Oklahoma #5744
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1750791760. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
324
Distinct HCPCS
5
Medicare allowed
$34,986
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 157 | 61 | $115 | |
99239 |
Hospital discharge day management, more than 30 minutes | 63 | 63 | $110 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 45 | 32 | $76 | |
99238 |
Hospital discharge day management, 30 minutes or less | 36 | 36 | $77 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 23 | 23 | $167 |
In context: peer comparison
Among 103 peers in Tulsa Internal Medicine Physician, average services per provider: 138. This provider delivers 2.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
29
Patients
29
Total drug cost
$113
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 16 | 16 | $35 |
| Furosemide | Generic | 13 | 13 | $78 |
Hospital affiliations
Frequently asked questions
What is Dr. John Gemma's medical specialty?
Dr. John Gemma practices Internal Medicine Physician in Tulsa, OK.
Where does Dr. John Gemma practice?
Dr. John Gemma practices at 4502 E 41St St, Tulsa, OK 741352536. Office phone: 9186194400.
What is Dr. John Gemma's NPI?
Dr. John Gemma's National Provider Identifier (NPI) is 1750791760, issued by NPPES.
Does Dr. John Gemma accept Medicare assignment?
Yes. Dr. John Gemma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Gemma commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.