Gregory F. Winters, MD
NPI 1891761037ActiveIndividual· Internal Medicine, Gastroenterology· Medford, OR
Internal Medicine, Gastroenterology (MD) with Asante Physician Partners and 1 other group, practicing in Medford, Oregon. Their prescriptions cost Medicare Part D more than their services did: $467,818 for 1,780 claims, against $122,175 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 2 companies reporting payments in 2025, $69.21 in all, mostly food and beverage. Lists Asante Rogue Regional Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1891761037 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 27, 2006 |
| Last updated in NPPES | Feb 25, 2026 |
| Certified by provider | Feb 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD23963 | OR |
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 - Gastroenterology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 700 |
|---|---|
| Services billed | 885 across 39 procedure codes |
| Paid by Medicare | $122,175 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,780 · 2,485 30-day fills |
|---|---|
| Patients | 698 |
| Total drug cost | $467,818 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Asante Physician PartnersMedford, OR · 225 clinicians
- Gastroenterology Consultants PCMedford, OR · 13 clinicians
Hospital affiliations
- Asante Rogue Regional Medical CenterMedford, OR
- Asante Three Rivers Medical CenterGrants Pass, OR
- Providence Medford Medical CenterMedford, OR
- Sky Lakes Medical CenterKlamath Falls, OR
Industry payments (Open Payments)
- 2025$69.21 · 2 payments from 2 companies
- 2024$27.22 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $37.78 | 1 |
| Genzyme Corporation | $31.43 | 1 |
What the 2025 payments were for
- Food and Beverage$69.21 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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