Geoffrey Robert Hamilton, MD
NPI 1467453431ActiveIndividual· Internal Medicine· Bristol, RI
Internal Medicine (MD) in Bristol, Rhode Island, trained at Albany Medical College of Union University (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $573,818 for 7,530 claims, against $31,881 paid for services in 2024. Madrigal Pharmaceuticals reported $150.00 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1467453431 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 2, 2005 |
| Last updated in NPPES | Apr 17, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD 10625 | RI |
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 - Internal Medicine (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 294 |
|---|---|
| Services billed | 862 across 32 procedure codes |
| Paid by Medicare | $31,881 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,530 · 15,564 30-day fills |
|---|---|
| Patients | 647 |
| Total drug cost | $573,818 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Albany Medical College of Union University |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
Medical group
- Medical Associates of Ri, Inc.Bristol, RI · 32 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Rhode Island HospitalProvidence, RI
- The Miriam HospitalProvidence, RI
Other facilities
- Visiting Nurse Home and HospiceHome health agency · Middleton, RI
Industry payments (Open Payments)
- 2024$150.00 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $150.00 | 1 |
What the 2024 payments were for
- Food and Beverage$150.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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