Quick answers
- Which hospitals does John M. Nayda work at?
- Medicare's official clinician data lists John M. Nayda at 2 hospitals: Mercy Hospital of Buffalo and Mount St. Mary's Hospital & Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John M. Nayda see patients?
- Medicare's clinician data lists 4 practice locations, including Buffalo, NY, Lewiston, NY and Lockport, NY. Call before your visit to confirm the address.
- What is John M. Nayda's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John M. Nayda accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Nayda 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 John M. Nayda?
- (716) 835-2966, as listed in official Medicare / NPI Registry data.
- What is John M. Nayda's NPI number?
- 1952690026. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John M. Nayda works
Medicare's Facility Affiliation Data lists John M. Nayda 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
- Mount St. Mary's Hospital & Health CenterLewiston, NY · Acute Care Hospital · CCN 330188
Practice locations
Addresses where John M. Nayda is enrolled with Medicare (CMS data updated 2026-10-02).
- 3435 Bailey AveBuffalo, NY 14215 (716) 835‑2966
- 5300 Military RdLewiston, NY 14092 (716) 297‑4800
- 565 Abbott RdBuffalo, NY 14220
- 6001 Shimer DrLockport, NY 14094 (716) 342‑3026
Group practices
Medicare enrollment lists John M. Nayda as a member of these groups (CMS data updated 2026-10-02).
- Trinity Medical Wny PC207 clinicians in the group
- Mount St. Marys Hospital of Niagara Falls90 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New York →
Other cardiologists in Buffalo
Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 2011 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952690026 |
| 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