Michael Andrew Parentis, M.D.
NPI 1821054057ActiveIndividual· Orthopaedic Surgery· Williamsville, NY
Orthopaedic Surgery (M.D.) in Williamsville, New York, trained at University of Rochester School of Medicine and Dentistry (class of 1994). 150 Medicare patients in 2024, $73,834 paid; nearly all of their 507 Part D prescriptions were generic (99%). Stryker Corporation was the largest of 10 companies reporting payments in 2025, $786.07 in all, mostly food and beverage.
Overview
| NPI | 1821054057 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 25, 2006 |
| Last updated in NPPES | May 21, 2020 |
| Certified by provider | May 21, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 219537 | 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 - Orthopedic Surgery (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 150 |
|---|---|
| Services billed | 2,460 across 62 procedure codes |
| Paid by Medicare | $73,834 |
Part D prescriptions in 2024
| Prescriptions (claims) | 507 · 646 30-day fills |
|---|---|
| Patients | 174 |
| Total drug cost | $9,954 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Rochester School of Medicine and Dentistry |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Michael A Parentis MD - Buffalo Orthopedics PCWilliamsville, NY · 2 clinicians
Hospital affiliations
- Kaleida HealthBuffalo, NY
- Mercy Hospital of BuffaloBuffalo, NY
- Sisters of Charity HospitalBuffalo, NY
Industry payments (Open Payments)
- 2025$786.07 · 23 payments from 10 companies
- 2024$1,029 · 15 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $173.88 | 1 |
| Treace Medical Concepts, Inc. | $137.08 | 6 |
| Prodigy Surgical Distribution, Inc. | $129.45 | 1 |
| Vertex Pharmaceuticals Incorporated | $80.06 | 3 |
| Ferring Pharmaceuticals Inc. | $70.77 | 4 |
What the 2025 payments were for
- Food and Beverage$786.07 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 orthopedic surgeons in Williamsville · All orthopedic surgeons in New York