Quick answers
- Which hospitals does Ronald J. Clarke work at?
- Medicare's official clinician data lists Ronald J. Clarke at 3 hospitals: Kaleida Health, Mount St. Mary's Hospital & Health Center and Niagara Falls Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ronald J. Clarke see patients?
- Medicare's clinician data lists 2 practice locations, including Grand Island, NY and Niagara Falls, NY. Call before your visit to confirm the address.
- What is Ronald J. Clarke's specialty?
- Medicare lists Family Practice as the primary specialty, and also Osteopathic Manipulative Medicine.
- Does Ronald J. Clarke accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald J. Clarke 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 Ronald J. Clarke?
- (716) 297-1027, as listed in official Medicare / NPI Registry data.
- What is Ronald J. Clarke's NPI number?
- 1649256199. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ronald J. Clarke works
Medicare's Facility Affiliation Data lists Ronald J. Clarke at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaleida HealthBuffalo, NY · Acute Care Hospital · CCN 330005
- Mount St. Mary's Hospital & Health CenterLewiston, NY · Acute Care Hospital · CCN 330188
- Niagara Falls Memorial Medical CenterNiagara Falls, NY · Acute Care Hospital · CCN 330065
Practice locations
Addresses where Ronald J. Clarke is enrolled with Medicare (CMS data updated 2026-10-02).
- 1801 Grand Island Blvd, Suite 300Grand Island, NY 14072 (716) 297‑1027
- 6950 Williams RdNiagara Falls, NY 14304 (716) 297‑1027
Group practices
Medicare enrollment lists Ronald J. Clarke as a member of this group (CMS data updated 2026-10-02).
- Clarke Family Medicine LLP3 clinicians in the group
Specialties
Other family doctors in Grand Island
Clinicians with the same Medicare primary specialty in Grand Island, NY — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649256199 |
| 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