Ryan Peter Denhaese, M.D.
NPI 1356563381ActiveIndividual· Neurological Surgery· Williamsville, NY
Neurological Surgery (M.D.) in Williamsville, New York, trained at State University of New York at Buffalo School of Medicine (class of 2001). Medicare paid $75,168 for services to 40 patients in 2024. Zavation Medical Products, LLC was the largest of 4 companies reporting payments in 2025, $238,900 in all, mostly royalties and licenses.
Overview
| NPI | 1356563381 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 2, 2007 |
| Last updated in NPPES | Feb 11, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 243525-1 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurosurgery (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 211 across 32 procedure codes |
| Paid by Medicare | $75,168 |
Education and affiliations
| Medical school | State University of New York at Buffalo School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Neurosurgery |
Medical groups
- Phoenix Rehabilitation and Health Services IncCranberry Twp, PA · 2,800 clinicians
- Axis Neurosurgery and Spine of Wny PLLCWilliamsville, NY · 4 clinicians
Hospital affiliations
- Kenmore Mercy HospitalKenmore, NY
- Olean General HospitalOlean, NY
Industry payments (Open Payments)
- 2025$238,900 · 55 payments from 4 companies
- 2024$229,228 · 52 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zavation Medical Products, LLC | $203,384 | 49 |
| Vb Spine LLC | $17,871 | 3 |
| Centinel Spine, LLC | $11,012 | 2 |
| Stryker Corporation | $6,633 | 1 |
What the 2025 payments were for
- Royalty or License$129,484 · 17 payments
- Consulting Fee$96,062 · 17 payments
- Travel and Lodging$10,390 · 6 payments
- Food and Beverage$2,964 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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