Quick answers
- Which hospitals does Mark D. Wilkowski work at?
- Medicare's official clinician data lists Mark D. Wilkowski at 2 hospitals: Mercy Hospital of Buffalo and Sisters of Charity Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Wilkowski see patients?
- Medicare's clinician data lists 5 practice locations, including Williamsville, NY, Depew, NY and Orchard Park, NY. Call before your visit to confirm the address.
- What is Mark D. Wilkowski's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mark D. Wilkowski accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Wilkowski accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Mark D. Wilkowski offer telehealth?
- Medicare's clinician data says Mark D. Wilkowski offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark D. Wilkowski?
- (716) 633-5400, as listed in official Medicare / NPI Registry data.
- What is Mark D. Wilkowski's NPI number?
- 1164479150. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark D. Wilkowski works
Medicare's Facility Affiliation Data lists Mark D. Wilkowski at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital of BuffaloBuffalo, NY · Acute Care Hospital · CCN 330279
- Sisters of Charity HospitalBuffalo, NY · Acute Care Hospital · CCN 330078
Practice locations
Addresses where Mark D. Wilkowski is enrolled with Medicare (CMS data updated 2026-10-02).
- 147 Reist StWilliamsville, NY 14221 (716) 633‑5400
- 3218 Walden AveDepew, NY 14043 (716) 684‑3500
- 3320 N Benzing RdOrchard Park, NY 14127 (716) 825‑0300
- 4979 Harlem RdAmherst, NY 14226 (716) 923‑4380
- 6970 Erie RdDerby, NY 14047 (716) 947‑9147
Group practices
Medicare enrollment lists Mark D. Wilkowski as a member of this group (CMS data updated 2026-10-02).
- Wny Medical PC43 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Williamsville
Clinicians with the same Medicare primary specialty in Williamsville, NY — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164479150 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians