Robert Steven Siegel, M.D.
NPI 1003985367ActiveIndividual· Internal Medicine, Hematology & Oncology· Washington, DC
Internal Medicine, Hematology & Oncology (M.D.) in Washington, District of Columbia, trained at George Washington University School of Medicine (class of 1977). Medicare paid $1,312,539 for services to 294 patients in 2024, and Part D covered 584 of their prescriptions (57% generic). Merck Sharp & Dohme LLC was the largest of 25 companies reporting payments in 2025, $1,436 in all, mostly food and beverage.
Overview
| NPI | 1003985367 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 8, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD13567 | DC |
| Internal Medicine, Hematology & Oncology | 207RH0003X | D43361 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 294 |
|---|---|
| Services billed | 66,427 across 68 procedure codes |
| Paid by Medicare | $1,312,539 |
Part D prescriptions in 2024
| Prescriptions (claims) | 584 · 850 30-day fills |
|---|---|
| Patients | 92 |
| Total drug cost | $3,111,087 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 1977 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Medical Faculty Associates, IncWashington, DC · 672 clinicians
Hospital affiliation
- George Washington Univ HospitalWashington, DC
Industry payments (Open Payments)
- 2025$1,436 · 53 payments from 25 companies
- 2024$1,123 · 50 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $232.52 | 10 |
| Janssen Biotech, Inc. | $181.45 | 8 |
| Gt Medical Technologies, Inc | $125.20 | 1 |
| Beone Medicines USA, Inc. | $123.50 | 1 |
| Novartis Pharmaceuticals Corporation | $83.77 | 3 |
What the 2025 payments were for
- Food and Beverage$1,436 · 53 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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