William Hayden Davis
NPI 1598229676ActiveIndividual· Physician Assistant· Fayetteville, NC
Physician Assistant with Rdmg Associates PA, practicing in Fayetteville, North Carolina. Their prescriptions cost Medicare Part D more than their services did: $329,363 for 2,833 claims, against $31,760 paid for services in 2024. Abbvie Inc. was the largest of 21 companies reporting payments in 2025, $2,410 in all, mostly food and beverage. Lists Adventhealth Hendersonville and 1 other hospital as hospital affiliations.
Overview
| NPI | 1598229676 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Jan 23, 2019 |
| Last updated in NPPES | Jan 23, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0010-08707 | NC |
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 - Physician Assistant (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 119 |
|---|---|
| Services billed | 1,555 across 49 procedure codes |
| Paid by Medicare | $31,760 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,833 · 5,262 30-day fills |
|---|---|
| Patients | 338 |
| Total drug cost | $329,363 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Rdmg Associates PAShallotte, NC · 27 clinicians
Hospital affiliations
- Adventhealth HendersonvilleHendersonville, NC
- Memorial Mission Hospital and Asheville Surgery CeAsheville, NC
Industry payments (Open Payments)
- 2025$2,410 · 128 payments from 21 companies
- 2024$2,237 · 128 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $347.69 | 23 |
| Astrazeneca Pharmaceuticals LP | $316.92 | 20 |
| Pfizer Inc. | $301.31 | 14 |
| Novo Nordisk Inc | $196.30 | 13 |
| Dexcom, Inc. | $166.17 | 7 |
What the 2025 payments were for
- Food and Beverage$2,340 · 127 payments
- Education$69.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 290 physician assistants in Fayetteville · All physician assistants in North Carolina