William Rataphon Chamnin, PA-C
NPI 1376664524ActiveIndividual· Physician Assistant· Wilmington, NC
Physician Assistant (PA-C) with Novant Health Medical Group Coastal Region LLC, practicing in Wilmington, North Carolina. Their prescriptions cost Medicare Part D more than their services did: $26,952 for 657 claims, against $17,465 paid for services in 2024. Abiomed was the largest of 3 companies reporting payments in 2025, $88.16 in all, mostly food and beverage. Lists Novant Health New Hanover Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1376664524 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 3, 2007 |
| Last updated in NPPES | May 26, 2021 |
| Certified by provider | May 26, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0010-00845 | 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 | 91 |
|---|---|
| Services billed | 185 across 35 procedure codes |
| Paid by Medicare | $17,465 |
Part D prescriptions in 2024
| Prescriptions (claims) | 657 · 776 30-day fills |
|---|---|
| Patients | 139 |
| Total drug cost | $26,952 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Novant Health Medical Group Coastal Region LLCLeland, NC · 599 clinicians
Hospital affiliation
- Novant Health New Hanover Regional Medical CenterWilmington, NC
Industry payments (Open Payments)
- 2025$88.16 · 4 payments from 3 companies
- 2024$37.54 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $56.45 | 2 |
| Medtronic, Inc. | $18.78 | 1 |
| Kerecis Limited | $12.93 | 1 |
What the 2025 payments were for
- Food and Beverage$88.16 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 394 physician assistants in Wilmington · All physician assistants in North Carolina