Kathleen Anne Clark, M.D.
NPI 1518103886ActiveIndividual· Internal Medicine· Amarillo, TX
Internal Medicine (M.D.) with Amarillo Medical Specialists,llp, practicing in Amarillo, Texas. In 2024 Medicare paid $121,170 for 375 patients, and Part D covered 529 of their prescriptions, 88% of them generic. Pfizer Inc. was the largest of 13 companies reporting payments in 2025, $835.79 in all, mostly food and beverage. Lists Bsa Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1518103886 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 16, 2008 |
| Last updated in NPPES | Mar 28, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 42540 | TX |
| Internal Medicine | 207R00000X | 251181-1 | NY |
| Obstetrics & Gynecology | 207V00000X | 42540 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 3,813 across 50 procedure codes |
| Paid by Medicare | $121,170 |
Part D prescriptions in 2024
| Prescriptions (claims) | 529 · 1,000 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $28,919 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Amarillo Medical Specialists,llpAmarillo, TX · 42 clinicians
Hospital affiliations
- Bsa HospitalAmarillo, TX
- Northwest Texas HospitalAmarillo, TX
- Quail Creek Surgical HospitalAmarillo, TX
Industry payments (Open Payments)
- 2025$835.79 · 41 payments from 13 companies
- 2024$1,307 · 60 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $191.18 | 11 |
| Novo Nordisk Inc | $151.60 | 7 |
| Revance Therapeutics, Inc. | $85.69 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $61.45 | 3 |
| Lilly USA, LLC | $58.37 | 3 |
What the 2025 payments were for
- Food and Beverage$835.79 · 41 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 105 internal medicine physicians in Amarillo · All internal medicine physicians in Texas