Gary Fennema, D.O.
NPI 1578003992ActiveIndividual· Emergency Medicine· Tulsa, OK
Emergency Medicine (D.O.) in Tulsa, Oklahoma, trained at Oklahoma State University College of Osteopathic Medicine (class of 2017). 147 Medicare patients in 2024, $13,552 paid; nearly all of their 144 Part D prescriptions were generic (91%).
Overview
| NPI | 1578003992 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Mar 4, 2017 |
| Last updated in NPPES | Dec 17, 2022 |
| Certified by provider | Dec 17, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 6402 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 147 |
|---|---|
| Services billed | 206 across 8 procedure codes |
| Paid by Medicare | $13,552 |
Part D prescriptions in 2024
| Prescriptions (claims) | 144 · 150 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $2,936 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Oklahoma State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Emergency Medicine |
Medical group
- Northeastern Health SystemTahlequah, OK · 103 clinicians
Hospital affiliations
- Cleveland Area HospitalCleveland, OK
- Northeastern Health SystemTahlequah, OK
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 285 emergency medicine physicians in Tulsa · All emergency medicine physicians in Oklahoma