William A. Hamilton, MD
NPI 1891892477ActiveIndividual· Family Medicine· Calhoun, GA
Family Medicine (MD) in Calhoun, Georgia, licensed in GA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $310,157 for 3,872 claims, against $17,772 paid for services in 2024. Pharmacosmos Therapeutics Inc. was the largest of 2 companies reporting payments in 2025, $38.14 in all, mostly food and beverage.
Overview
| NPI | 1891892477 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 17, 2006 |
| Last updated in NPPES | Dec 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 059423 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 134 |
|---|---|
| Services billed | 395 across 27 procedure codes |
| Paid by Medicare | $17,772 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,872 · 8,022 30-day fills |
|---|---|
| Patients | 328 |
| Total drug cost | $310,157 |
| Generic share | 87% of claims |
Industry payments (Open Payments)
- 2025$38.14 · 2 payments from 2 companies
- 2024$419.06 · 23 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pharmacosmos Therapeutics Inc. | $23.02 | 1 |
| Dexcom, Inc. | $15.12 | 1 |
What the 2025 payments were for
- Food and Beverage$38.14 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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