Amanda L. Winston, M.D.
NPI 1477992360ActiveIndividual· Internal Medicine· Davison, MI
Opted out of Medicare from October 2025 to October 2027. Internal Medicine (M.D.) in Davison, Michigan, trained at Michigan State University College of Human Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $503,824 for 3,503 claims, against $50,680 paid for services in 2024.
Overview
| NPI | 1477992360 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 24, 2013 |
| Last updated in NPPES | Feb 9, 2024 |
| Certified by provider | Feb 9, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301103706 | MI |
| Pediatrics | 208000000X | 4301103706 | MI |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Oct 1, 2025 – Oct 1, 2027 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 63 |
|---|---|
| Services billed | 923 across 48 procedure codes |
| Paid by Medicare | $50,680 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,503 · 7,096 30-day fills |
|---|---|
| Patients | 204 |
| Total drug cost | $503,824 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
Hospital affiliation
- McLaren FlintFlint, MI
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 18 internal medicine physicians in Davison · All internal medicine physicians in Michigan