Oleksandr Semeniuk, M.D.
NPI 1528452794ActiveIndividual· Internal Medicine, Infectious Disease· Washington, DC
Internal Medicine, Infectious Disease (M.D.) with Medical Faculty Associates, Inc, practicing in Washington, District of Columbia. Their prescriptions cost Medicare Part D more than their services did: $223,131 for 144 claims, against $61,790 paid for services in 2024. Viiv Healthcare Company was the largest of 2 companies reporting payments in 2025, $435.71 in all, mostly food and beverage. Lists George Washington Univ Hospital as a hospital affiliation.
Overview
| NPI | 1528452794 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 25, 2015 |
| Last updated in NPPES | Mar 11, 2025 |
| Certified by provider | Mar 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | MD048339 | DC |
| Internal Medicine | 207R00000X | D0085087 | MD |
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 - Infectious Disease (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 215 |
|---|---|
| Services billed | 667 across 23 procedure codes |
| Paid by Medicare | $61,790 |
Part D prescriptions in 2024
| Prescriptions (claims) | 144 · 161 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $223,131 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Infectious Disease |
Medical group
- Medical Faculty Associates, IncWashington, DC · 672 clinicians
Hospital affiliation
- George Washington Univ HospitalWashington, DC
Industry payments (Open Payments)
- 2025$435.71 · 4 payments from 2 companies
- 2024$284.63 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $224.13 | 2 |
| Gilead Sciences, Inc. | $211.58 | 2 |
What the 2025 payments were for
- Food and Beverage$435.71 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 123 infectious disease specialists in Washington · All infectious disease specialists in District of Columbia