Karen A. Siren, MD
NPI 1255589487ActiveIndividual· Emergency Medicine· McAlester, OK
Emergency Medicine (MD) with Emergency Services of Oklahoma PC and 1 other group, practicing in McAlester, Oklahoma. 388 Medicare patients in 2024, $49,764 paid; nearly all of their 268 Part D prescriptions were generic (97%). Lists Integris Canadian Valley Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1255589487 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 29, 2008 |
| Last updated in NPPES | Jun 7, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | MT191295 | PA |
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 - Emergency Medicine (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 388 |
|---|---|
| Services billed | 465 across 18 procedure codes |
| Paid by Medicare | $49,764 |
Part D prescriptions in 2024
| Prescriptions (claims) | 268 · 274 30-day fills |
|---|---|
| Patients | 161 |
| Total drug cost | $3,769 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- Emergency Services of Oklahoma PCGrove, OK · 66 clinicians
- Premier Physician Staffing 2 PLLCMcAlester, OK · 16 clinicians
Hospital affiliations
- Integris Canadian Valley HospitalYukon, OK
- McAlester Regional Health CenterMcAlester, OK
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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