Andrew Ahn, M.D.
NPI 1154785574ActiveIndividual· Internal Medicine· Washington, DC
Internal Medicine (M.D.) with Emergency Medicine Associates P.A., P.C., practicing in Washington, District of Columbia. 441 Medicare patients in 2024, $152,310 paid; nearly all of their 298 Part D prescriptions were generic (90%). Canon Medical Systems USA, Inc. was the largest of 2 companies reporting payments in 2024, $45.72 in all, mostly food and beverage. Lists Inova Loudoun Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1154785574 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 12, 2016 |
| Last updated in NPPES | Feb 27, 2020 |
| Certified by provider | Feb 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 0101268210 | VA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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); Practitioner - Internal Medicine (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 441 |
|---|---|
| Services billed | 1,607 across 11 procedure codes |
| Paid by Medicare | $152,310 |
Part D prescriptions in 2024
| Prescriptions (claims) | 298 · 305 30-day fills |
|---|---|
| Patients | 137 |
| Total drug cost | $12,285 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Emergency Medicine Associates P.A., P.C.Newport News, VA · 714 clinicians
Hospital affiliations
- Inova Loudoun HospitalLeesburg, VA
- Reston Hospital CenterReston, VA
Industry payments (Open Payments)
- 2024$45.72 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Canon Medical Systems USA, Inc. | $23.63 | 1 |
| Janssen Pharmaceuticals, Inc | $22.09 | 1 |
What the 2024 payments were for
- Food and Beverage$45.72 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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