Timothy M. Hsieh, M.D.
NPI 1265423883ActiveIndividual· Internal Medicine, Geriatric Medicine· Tahlequah, OK
Internal Medicine, Geriatric Medicine (M.D.) in Tahlequah, Oklahoma, trained at New York Medical College (class of 1998). In 2024 Medicare paid $46,273 for 260 patients, and Part D covered 114 of their prescriptions, 80% of them generic.
Overview
| NPI | 1265423883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 2, 2005 |
| Last updated in NPPES | Jan 11, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | 220511 | NY |
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); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 260 |
|---|---|
| Services billed | 508 across 9 procedure codes |
| Paid by Medicare | $46,273 |
Part D prescriptions in 2024
| Prescriptions (claims) | 114 · 127 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $22,457 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Geriatric Medicine |
Medical groups
- Cherokee NationTahlequah, OK · 449 clinicians
- Northeastern Health SystemTahlequah, OK · 103 clinicians
Hospital affiliations
- Cherokee Nation W W Hastings Indian HospitalTahlequah, 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