Quick answers
- Which hospitals does Wendy A. Callen work at?
- Medicare's official clinician data lists Wendy A. Callen at 3 hospitals: Kenmore Mercy Hospital, Mount St. Mary's Hospital & Health Center and Sisters of Charity Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Wendy A. Callen see patients?
- Medicare's clinician data lists 3 practice locations, including Buffalo, NY, Kenmore, NY and Amherst, NY. Call before your visit to confirm the address.
- What is Wendy A. Callen's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Wendy A. Callen accept Medicare assignment?
- Yes. Medicare's clinician data says Wendy A. Callen 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 Wendy A. Callen?
- (716) 862-1000, as listed in official Medicare / NPI Registry data.
- What is Wendy A. Callen's NPI number?
- 1609851401. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Wendy A. Callen works
Medicare's Facility Affiliation Data lists Wendy A. Callen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kenmore Mercy HospitalKenmore, NY · Acute Care Hospital · CCN 330102
- Mount St. Mary's Hospital & Health CenterLewiston, NY · Acute Care Hospital · CCN 330188
- Sisters of Charity HospitalBuffalo, NY · Acute Care Hospital · CCN 330078
Practice locations
Addresses where Wendy A. Callen is enrolled with Medicare (CMS data updated 2026-10-02).
- 2157 Main StBuffalo, NY 14214 (716) 862‑1000
- 2950 Elmwood AveKenmore, NY 14217 (716) 447‑6100
- 4949 Harlem RdAmherst, NY 14226 (716) 601‑3690
Group practices
Medicare enrollment lists Wendy A. Callen as a member of this group (CMS data updated 2026-10-02).
- Sisters of Charity Hospital of Buffalo New York164 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Buffalo
Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.
Clinician information
| Graduation year | 2003 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609851401 |
| 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