Jeremias C. Tan, M.D.
NPI 1699723213ActiveIndividual· Internal Medicine, Gastroenterology· Fairfax, VA
Internal Medicine, Gastroenterology (M.D.) in Fairfax, Virginia, trained at George Washington University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $725,827 for 537 claims, against $178,086 paid for services in 2024. Janssen Biotech, Inc. was the largest of 22 companies reporting payments in 2025, $3,323 in all, mostly food and beverage.
Overview
| NPI | 1699723213 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 5, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 0101239223 | 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 - Internal Medicine (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 458 |
|---|---|
| Services billed | 5,056 across 43 procedure codes |
| Paid by Medicare | $178,086 |
Part D prescriptions in 2024
| Prescriptions (claims) | 537 · 1,072 30-day fills |
|---|---|
| Patients | 239 |
| Total drug cost | $725,827 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Gastroenterology Associates of Northern Virginia, LLCAlexandria, VA · 100 clinicians
Hospital affiliations
- Inova Fair Oaks HospitalFairfax, VA
- Virginia Hospital CenterArlington, VA
Industry payments (Open Payments)
- 2025$3,323 · 145 payments from 22 companies
- 2024$3,237 · 131 payments from 26 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $731.24 | 25 |
| Abbvie Inc. | $614.90 | 39 |
| Pfizer Inc. | $217.35 | 11 |
| Qol Medical, LLC | $183.14 | 7 |
| Takeda Pharmaceuticals U.S.A., Inc. | $175.37 | 9 |
What the 2025 payments were for
- Food and Beverage$3,323 · 145 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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