Michael Francis O'Brien, PA-C
NPI 1104887884ActiveIndividual· Physician Assistant· Halfmoon, NY
Physician Assistant (PA-C) with Ellis Hospital, practicing in Halfmoon, New York. Their prescriptions cost Medicare Part D more than their services did: $292,214 for 2,283 claims, against $16,853 paid for services in 2024. Abbvie Inc. was the largest of 20 companies reporting payments in 2025, $1,363 in all, mostly food and beverage. Lists Ellis Hospital as a hospital affiliation.
Overview
| NPI | 1104887884 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Mar 31, 2006 |
| Last updated in NPPES | Jul 10, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 003610-1 | 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 - Physician Assistant (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 282 across 14 procedure codes |
| Paid by Medicare | $16,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,283 · 5,499 30-day fills |
|---|---|
| Patients | 263 |
| Total drug cost | $292,214 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Ellis HospitalSchenecctady, NY · 249 clinicians
Hospital affiliation
- Ellis HospitalSchenectady, NY
Industry payments (Open Payments)
- 2025$1,363 · 87 payments from 20 companies
- 2024$1,436 · 82 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $255.69 | 22 |
| Pfizer Inc. | $248.44 | 17 |
| Novo Nordisk Inc | $122.71 | 5 |
| Amgen Inc. | $115.28 | 7 |
| Phathom Pharmaceuticals, Inc. | $93.28 | 7 |
What the 2025 payments were for
- Food and Beverage$1,363 · 87 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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