Mark Weissman, M.D.
NPI 1336365568ActiveIndividual· Internal Medicine· Bethany, OK
Internal Medicine (M.D.) in Bethany, Oklahoma, trained at New York Medical College (class of 1974). Part D covered 54 prescriptions written in 2024.
Overview
| NPI | 1336365568 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 17, 2007 |
| Last updated in NPPES | Oct 11, 2026 |
| Certified by provider | May 16, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 15521 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (OK); Practitioner - Internal Medicine (TX) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 54 · 94 30-day fills |
|---|---|
| Total drug cost | $18,041 |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1974 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
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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