Mary Clarke, MD
NPI 1194839589ActiveIndividual· Family Medicine· Stillwater, OK
Family Medicine (MD) in Stillwater, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $330,525 for 5,026 claims, against $137,363 paid for services in 2024. Amgen Inc. was the largest of 5 companies reporting payments in 2025, $214.19 in all, mostly food and beverage.
Overview
| NPI | 1194839589 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 19, 2006 |
| Last updated in NPPES | Oct 27, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | L8314 | TX |
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 - Family Practice (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 743 |
|---|---|
| Services billed | 3,566 across 63 procedure codes |
| Paid by Medicare | $137,363 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,026 · 10,829 30-day fills |
|---|---|
| Patients | 312 |
| Total drug cost | $330,525 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Stillwater Medical Center AuthorityStillwater, OK · 153 clinicians
Hospital affiliation
- Stillwater Medical CenterStillwater, OK
Other facilities
- Stillwater Medical at HomeHome health agency · Stillwater, OK
- Stillwater Medical at HomeHospice · Stillwater, OK
Industry payments (Open Payments)
- 2025$214.19 · 6 payments from 5 companies
- 2024$19.04 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $135.34 | 2 |
| Merck Sharp & Dohme LLC | $25.70 | 1 |
| Abbvie Inc. | $19.49 | 1 |
| Inspire Medical Systems, Inc. | $17.41 | 1 |
| Ferring Pharmaceuticals Inc. | $16.25 | 1 |
What the 2025 payments were for
- Food and Beverage$188.49 · 5 payments
- Education$25.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 family medicine physicians in Stillwater · All family medicine physicians in Oklahoma