Brian O'Connor, MD
NPI 1174515050ActiveIndividual· Internal Medicine, Medical Oncology· Frederick, MD
Internal Medicine, Medical Oncology (MD) in Frederick, Maryland, licensed in MD, with an NPI issued in August 2005. Part D covered 12 prescriptions written in 2024, 100% of them generic.
Overview
| NPI | 1174515050 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 17, 2005 |
| Last updated in NPPES | May 15, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | D31761 | MD |
| Internal Medicine, Hematology & Oncology | 207RH0003X | D0031761 | 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 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 - Hematology/Oncology (MD) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 12 · 12 30-day fills |
|---|---|
| Total drug cost | $293.29 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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