Andy Thanjan, M.D.
NPI 1306083696ActiveIndividual· Internal Medicine, Gastroenterology· Richmond, VA
Internal Medicine, Gastroenterology (M.D.) in Richmond, Virginia, trained at George Washington University School of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $1,007,844 for 1,436 claims, against $111,251 paid for services in 2024. Abbvie Inc. was the largest of 20 companies reporting payments in 2025, $1,950 in all, mostly food and beverage.
Overview
| NPI | 1306083696 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 8, 2009 |
| Last updated in NPPES | Apr 29, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101251979 | VA |
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 - Gastroenterology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 618 |
|---|---|
| Services billed | 977 across 37 procedure codes |
| Paid by Medicare | $111,251 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,436 · 2,427 30-day fills |
|---|---|
| Patients | 630 |
| Total drug cost | $1,007,844 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Gastrointestinal Specialists LLCMechanicsville, VA · 81 clinicians
Hospital affiliations
- Bon Secours Memorial Regional Medical CenterMechanicsville, VA
- Bon Secours St Francis Medical CenterMidlothian, VA
- Bon Secours St Marys HospitalRichmond, VA
- Cjw Medical CenterRichmond, VA
- Henrico Doctors' HospitalRichmond, VA
Industry payments (Open Payments)
- 2025$1,950 · 100 payments from 20 companies
- 2024$2,097 · 99 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $678.33 | 31 |
| Janssen Biotech, Inc. | $344.79 | 19 |
| Takeda Pharmaceuticals U.S.A., Inc. | $180.30 | 13 |
| Phathom Pharmaceuticals, Inc. | $98.97 | 10 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $86.27 | 4 |
What the 2025 payments were for
- Food and Beverage$1,950 · 100 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 86 gastroenterologists in Richmond · All gastroenterologists in Virginia