Tonya Lynn Adams, M.D.
NPI 1861472862ActiveIndividual· Internal Medicine, Gastroenterology· Fairfax, VA
Internal Medicine, Gastroenterology (M.D.) in Fairfax, Virginia, trained at Toledo Medical College (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $474,396 for 552 claims, against $168,147 paid for services in 2024. Janssen Biotech, Inc. was the largest of 22 companies reporting payments in 2025, $1,655 in all, mostly food and beverage.
Overview
| NPI | 1861472862 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 18, 2006 |
| Last updated in NPPES | May 7, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101231069 | 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 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 - Gastroenterology (DC); Practitioner - Gastroenterology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 499 |
|---|---|
| Services billed | 2,886 across 40 procedure codes |
| Paid by Medicare | $168,147 |
Part D prescriptions in 2024
| Prescriptions (claims) | 552 · 960 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $474,396 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Toledo Medical College |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Gastroenterology Associates of Northern Virginia, LLCAlexandria, VA · 100 clinicians
Hospital affiliations
- Inova Fair Oaks HospitalFairfax, VA
- Inova Fairfax HospitalFalls Church, VA
- Virginia Hospital CenterArlington, VA
Industry payments (Open Payments)
- 2025$1,655 · 75 payments from 22 companies
- 2024$2,285 · 108 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $325.55 | 15 |
| Abbvie Inc. | $300.73 | 21 |
| Janssen Scientific Affairs, LLC | $108.67 | 1 |
| Braintree Laboratories, Inc. | $107.44 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $100.41 | 5 |
What the 2025 payments were for
- Food and Beverage$1,655 · 75 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Fairfax
- 1003632373
- 1053096461
- 1205884368
- 1881634053
- 1811082068
- 1861517963
- 1114220266
- 1750429213
- 1225193816
- 1649255233
- 1023038270
- 1013949254
All Internal Medicine, Gastroenterology providers in Virginia →