Gretchen Eileen Winter, PH.D., D.O.
NPI 1558640953ActiveIndividual· Internal Medicine· Templeton, CA
Internal Medicine (PH.D., D.O.) in Templeton, California, trained at Western University of Health Sciences College of Dental Med (class of 2010). In 2024 Medicare paid $92,607 for 503 patients, and Part D covered 209 of their prescriptions, 87% of them generic.
Overview
| NPI | 1558640953 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PH.D., D.O. |
| Sole proprietor | No |
| NPI issued | Aug 16, 2011 |
| Last updated in NPPES | Jun 24, 2026 |
| Certified by provider | Jun 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A12705 | CA |
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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 503 |
|---|---|
| Services billed | 1,148 across 6 procedure codes |
| Paid by Medicare | $92,607 |
Part D prescriptions in 2024
| Prescriptions (claims) | 209 · 212 30-day fills |
|---|---|
| Patients | 112 |
| Total drug cost | $10,081 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Western University of Health Sciences College of Dental Med |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Hospitalist |
Medical group
- Galen Inpatient Physicians PCHanford, CA · 1,077 clinicians
Hospital affiliations
- Adventist Health Sierra VistaSan Luis Obispo, CA
- Adventist Health Twin CitiesTempleton, CA
- French Hospital Medical CenterSan Luis Obispo, CA
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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All 24 internal medicine physicians in Templeton · All internal medicine physicians in California