Thien-Giang Bach-Huynh, M.D.
NPI 1881649556ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Arlington, VA
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Arlington, Virginia, trained at George Washington University School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $650,123 for 1,458 claims, against $73,890 paid for services in 2024. Xeris Pharmaceuticals, Inc. was the largest of 31 companies reporting payments in 2025, $1,995 in all, mostly food and beverage.
Overview
| NPI | 1881649556 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 23, 2006 |
| Last updated in NPPES | Mar 31, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 0101234900 | 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 - Endocrinology (DC); Practitioner - Endocrinology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 333 |
|---|---|
| Services billed | 1,476 across 19 procedure codes |
| Paid by Medicare | $73,890 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,458 · 3,904 30-day fills |
|---|---|
| Patients | 236 |
| Total drug cost | $650,123 |
| Generic share | 40% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Privia Medical Group, LLCFairfax, VA · 1,533 clinicians
Hospital affiliation
- Virginia Hospital CenterArlington, VA
Industry payments (Open Payments)
- 2025$1,995 · 84 payments from 31 companies
- 2024$1,633 · 72 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Xeris Pharmaceuticals, Inc. | $298.70 | 10 |
| Lilly USA, LLC | $192.42 | 9 |
| Amgen Inc. | $173.01 | 8 |
| Ascendis Pharma Endocrinology Inc | $134.82 | 6 |
| Novo Nordisk Inc | $112.49 | 5 |
What the 2025 payments were for
- Food and Beverage$1,995 · 84 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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