Quick answers
- Which hospitals does Alyssa N. Kretschmann work at?
- Medicare's official clinician data lists Alyssa N. Kretschmann at 1 hospital: Sisters of Charity Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alyssa N. Kretschmann see patients?
- Medicare's clinician data lists 2 practice locations, including Williamsville, NY. Call before your visit to confirm the address.
- What is Alyssa N. Kretschmann's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Alyssa N. Kretschmann accept Medicare assignment?
- Yes. Medicare's clinician data says Alyssa N. Kretschmann 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.
- What is the phone number for Alyssa N. Kretschmann?
- (716) 839-8000, as listed in official Medicare / NPI Registry data.
- What is Alyssa N. Kretschmann's NPI number?
- 1285328476. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alyssa N. Kretschmann works
Medicare's Facility Affiliation Data lists Alyssa N. Kretschmann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sisters of Charity HospitalBuffalo, NY · Acute Care Hospital · CCN 330078
Practice locations
Addresses where Alyssa N. Kretschmann is enrolled with Medicare (CMS data updated 2026-10-02).
- 2350 Maple Rd, Suite 100Williamsville, NY 14221 (716) 839‑8000
- 30 N Union RdWilliamsville, NY 14221 (716) 839‑8000
Group practices
Medicare enrollment lists Alyssa N. Kretschmann as a member of this group (CMS data updated 2026-10-02).
- Primary Care of Western New York LLP37 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
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285328476 |
| 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