Loren Chen, M.D.
NPI 1992932917ActiveIndividual· Internal Medicine· Mc Lean, VA
Internal Medicine (M.D.) with Virginia Hospital Center Physician Group LLC, practicing in Mc Lean, Virginia. Their prescriptions cost Medicare Part D more than their services did: $108,616 for 1,036 claims, against $48,409 paid for services in 2024. Sumitomo Pharma America, Inc. was the largest of 8 companies reporting payments in 2025, $338.82 in all, mostly food and beverage. Lists Virginia Hospital Center as a hospital affiliation.
Overview
| NPI | 1992932917 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 17, 2009 |
| Last updated in NPPES | Jun 23, 2023 |
| Certified by provider | Jun 23, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0101277526 | 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 - Internal Medicine (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 126 |
|---|---|
| Services billed | 559 across 34 procedure codes |
| Paid by Medicare | $48,409 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,036 · 2,356 30-day fills |
|---|---|
| Patients | 153 |
| Total drug cost | $108,616 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Virginia Hospital Center Physician Group LLCArlington, VA · 353 clinicians
Hospital affiliation
- Virginia Hospital CenterArlington, VA
Industry payments (Open Payments)
- 2025$338.82 · 13 payments from 8 companies
- 2024$191.93 · 7 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sumitomo Pharma America, Inc. | $86.79 | 3 |
| Boston Scientific Corporation | $65.64 | 2 |
| Pfizer Inc. | $60.69 | 3 |
| Biogen, Inc. | $27.90 | 1 |
| Novo Nordisk Inc | $26.57 | 1 |
What the 2025 payments were for
- Food and Beverage$338.82 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 45 internal medicine physicians in Mc Lean · All internal medicine physicians in Virginia