Joseph An, D.O.
NPI 1144512450ActiveIndividual· Internal Medicine, Hematology & Oncology· Portsmouth, VA
Internal Medicine, Hematology & Oncology (D.O.) with West Virginia University Medical Corporation, practicing in Portsmouth, Virginia. Their prescriptions cost Medicare Part D more than their services did: $2,096,092 for 1,781 claims, against $60,893 paid for services in 2024. Galvanize Therapeutics, Inc was the largest of 3 companies reporting payments in 2025, $238.82 in all, mostly education. Lists Berkeley Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1144512450 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | May 4, 2011 |
| Last updated in NPPES | Jun 13, 2022 |
| Certified by provider | Jun 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 20A12547 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Hematology/Oncology (WV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 275 |
|---|---|
| Services billed | 762 across 16 procedure codes |
| Paid by Medicare | $60,893 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,781 · 2,501 30-day fills |
|---|---|
| Patients | 286 |
| Total drug cost | $2,096,092 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- West Virginia University Medical CorporationMorgantown, WV · 1,980 clinicians
Hospital affiliations
- Berkeley Medical CenterMartinsburg, WV
- Jefferson Medical CenterRanson, WV
- Winchester Medical CenterWinchester, VA
Other facilities
- Wvuhs Home CareHome health agency · Clarksburg, WV
Industry payments (Open Payments)
- 2025$238.82 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Galvanize Therapeutics, Inc | $118.32 | 1 |
| Janssen Biotech, Inc. | $99.99 | 1 |
| Janssen Pharmaceuticals, Inc | $20.51 | 1 |
What the 2025 payments were for
- Education$120.50 · 2 payments
- Food and Beverage$118.32 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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