Alan J. Gamsey, M.D.
NPI 1043295348ActiveIndividual· Internal Medicine, Gastroenterology· Norfolk, VA
Internal Medicine, Gastroenterology (M.D.) in Norfolk, Virginia, trained at Virginia Commonwealth University, School of Medicine (class of 1975). Their prescriptions cost Medicare Part D more than their services did: $898,998 for 1,059 claims, against $174,170 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $1,718 in all, mostly food and beverage.
Overview
| NPI | 1043295348 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 8, 2005 |
| Last updated in NPPES | Nov 3, 2025 |
| Certified by provider | Nov 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101029563 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 552 |
|---|---|
| Services billed | 2,666 across 44 procedure codes |
| Paid by Medicare | $174,170 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,059 · 2,127 30-day fills |
|---|---|
| Patients | 505 |
| Total drug cost | $898,998 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Virginia Commonwealth University, School of Medicine |
|---|---|
| Graduation year | 1975 |
| Medicare specialty | Gastroenterology |
Medical group
- Center for Health and Cancer Prevention PCVirginia Beach, VA · 7 clinicians
Industry payments (Open Payments)
- 2025$1,718 · 73 payments from 19 companies
- 2024$2,727 · 120 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $410.64 | 22 |
| Janssen Biotech, Inc. | $235.06 | 6 |
| Takeda Pharmaceuticals U.S.A., Inc. | $194.08 | 8 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $131.48 | 6 |
| Celltrion USA Inc. | $127.96 | 5 |
What the 2025 payments were for
- Food and Beverage$1,718 · 73 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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