Joseph Lee Roswarski, M.D.
NPI 1215223839ActiveIndividual· Internal Medicine, Hematology & Oncology· Washington, DC
Internal Medicine, Hematology & Oncology (M.D.) in Washington, District of Columbia, trained at Indiana University School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $539,301 for 120 claims, against $62,249 paid for services in 2024. Genmab U.S., Inc. was the largest of 23 companies reporting payments in 2025, $5,671 in all, mostly consulting fees.
Overview
| NPI | 1215223839 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2011 |
| Last updated in NPPES | Sep 7, 2022 |
| Certified by provider | Sep 7, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD210002210 | DC |
| Internal Medicine | 207R00000X | 0101254676 | 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 - Medical Oncology (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 132 |
|---|---|
| Services billed | 708 across 13 procedure codes |
| Paid by Medicare | $62,249 |
Part D prescriptions in 2024
| Prescriptions (claims) | 120 · 185 30-day fills |
|---|---|
| Patients | 31 |
| Total drug cost | $539,301 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology, Radiation Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
- Regional Cancer Care Associates LLCRed Bank, NJ · 151 clinicians
Hospital affiliations
- Medstar Georgetown University HospitalWashington, DC
- Medstar Saint Mary's HospitalLeonardtown, MD
- Medstar Washington Hospital CenterWashington, DC
Industry payments (Open Payments)
- 2025$5,671 · 41 payments from 23 companies
- 2024$754.14 · 19 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genmab U.S., Inc. | $2,241 | 4 |
| Astrazeneca Pharmaceuticals LP | $2,174 | 3 |
| Beone Medicines USA, Inc. | $228.46 | 3 |
| Janssen Biotech, Inc. | $196.49 | 7 |
| Stemline Therapeutics Inc. | $114.96 | 2 |
What the 2025 payments were for
- Consulting Fee$4,090 · 2 payments
- Food and Beverage$1,581 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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