William Obrien, M.D.
NPI 1578524963ActiveIndividual· Internal Medicine· Broken Arrow, OK
Internal Medicine (M.D.) with Clinton J Baird PLC, practicing in Broken Arrow, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $176,796 for 912 claims, against $1,725 paid for services in 2024.
Overview
| NPI | 1578524963 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 28, 2006 |
| Last updated in NPPES | Oct 29, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20338 | 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 - Internal Medicine (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 16 |
|---|---|
| Services billed | 35 across 3 procedure codes |
| Paid by Medicare | $1,725 |
Part D prescriptions in 2024
| Prescriptions (claims) | 912 · 1,810 30-day fills |
|---|---|
| Patients | 52 |
| Total drug cost | $176,796 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Psychiatry |
Medical group
- Clinton J Baird PLCCedar Park, TX · 16 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Broken Arrow
- 1023296746
- 1467686717
- 1508865361
- 1619550316
- 1669449211
- 1891759213
- 1467408831
- 1912975012
- 1033022652
- 1073133880
- 1205588928
- 1245209113
All 20 internal medicine physicians in Broken Arrow · All internal medicine physicians in Oklahoma