Brian Joseph McMahon, MD
NPI 1801839550ActiveIndividual· Emergency Medicine· Patchogue, NY
Emergency Medicine (MD) in Patchogue, New York, licensed in NY, with an NPI issued in June 2006. Mostly services rather than prescriptions: Medicare paid $65,103 for 446 patients in 2024, with only 34 Part D claims. Astrazeneca Pharmaceuticals LP reported $27.99 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1801839550 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 13, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 224721 | NY |
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 - Emergency Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 446 |
|---|---|
| Services billed | 486 across 24 procedure codes |
| Paid by Medicare | $65,103 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34 · 35 30-day fills |
|---|---|
| Patients | 28 |
| Total drug cost | $787.50 |
| Generic share | 97% of claims |
Industry payments (Open Payments)
- 2025$27.99 · 2 payments from 1 company
- 2024$331.06 · 14 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $27.99 | 2 |
What the 2025 payments were for
- Food and Beverage$27.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 emergency medicine physicians in Patchogue · All emergency medicine physicians in New York