Margaret Ann Libby, M.D.
NPI 1235112822ActiveIndividual· Family Medicine· Lockport, NY
Family Medicine (M.D.) in Lockport, New York, trained at State University of New York at Buffalo School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $582,864 for 4,906 claims, against $20,234 paid for services in 2024. Insulet Corporation was the largest of 9 companies reporting payments in 2025, $331.23 in all, mostly food and beverage.
Overview
| NPI | 1235112822 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 28, 2005 |
| Last updated in NPPES | Sep 24, 2025 |
| Certified by provider | Sep 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 17373501 | 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 - Family Practice (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 65 |
|---|---|
| Services billed | 277 across 11 procedure codes |
| Paid by Medicare | $20,234 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,906 · 10,215 30-day fills |
|---|---|
| Patients | 206 |
| Total drug cost | $582,864 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Family Practice |
Hospital affiliation
- Mount St. Mary's Hospital & Health CenterLewiston, NY
Other facilities
- Niagara Hospice IncHospice · Lockport, NY
Industry payments (Open Payments)
- 2025$331.23 · 17 payments from 9 companies
- 2024$233.78 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insulet Corporation | $63.60 | 3 |
| Lilly USA, LLC | $54.57 | 3 |
| Amgen Inc. | $52.72 | 2 |
| Novo Nordisk Inc | $48.63 | 3 |
| Phathom Pharmaceuticals, Inc. | $36.06 | 2 |
What the 2025 payments were for
- Food and Beverage$331.23 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 32 family medicine physicians in Lockport · All family medicine physicians in New York