Alison Perkins Neff, MD
Opted out of Medicare from November 2025 to November 2027. Internal Medicine (MD) in Mason, Ohio, licensed in OH, with an NPI issued in May 2007. Their prescriptions cost Medicare Part D more than their services did: $376,451 for 5,361 claims, against $55,299 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $848.63 in all, mostly food and beverage.
Overview
| NPI | 1215145719 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 18, 2007 |
| Last updated in NPPES | Dec 8, 2025 |
| Certified by provider | Dec 8, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 35.092236 | OH |
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 Nov 18, 2025 – Nov 18, 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 | 203 |
|---|---|
| Services billed | 697 across 37 procedure codes |
| Paid by Medicare | $55,299 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,361 · 12,709 30-day fills |
|---|---|
| Patients | 489 |
| Total drug cost | $376,451 |
| Generic share | 88% of claims |
Industry payments (Open Payments)
- 2025$848.63 · 44 payments from 16 companies
- 2024$416.15 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $351.27 | 18 |
| Astrazeneca Pharmaceuticals LP | $81.67 | 5 |
| Novo Nordisk Inc | $60.05 | 3 |
| Lilly USA, LLC | $49.28 | 3 |
| Dexcom, Inc. | $45.92 | 2 |
What the 2025 payments were for
- Food and Beverage$848.63 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 internal medicine physicians in Mason · All internal medicine physicians in Ohio