Quick answers
- Which hospitals does Katherine E. O'Leary work at?
- Medicare's official clinician data lists Katherine E. O'Leary at 1 hospital: Independence Health System Butler Memorial Hospita…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine E. O'Leary see patients?
- Medicare's clinician data lists 3 practice locations, including Butler, PA, Slippery Rock, PA and Clarion, PA. Call before your visit to confirm the address.
- What is Katherine E. O'Leary's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Katherine E. O'Leary accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine E. O'Leary 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 Katherine E. O'Leary?
- (724) 284-4000, as listed in official Medicare / NPI Registry data.
- What is Katherine E. O'Leary's NPI number?
- 1952830994. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine E. O'Leary works
Medicare's Facility Affiliation Data lists Katherine E. O'Leary at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Independence Health System Butler Memorial Hospita…Butler, PA · Acute Care Hospital · CCN 390168
Practice locations
Addresses where Katherine E. O'Leary is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Hospital WayButler, PA 16001 (724) 284‑4000
- 100 Innovation DrSlippery Rock, PA 16057
- 24 Doctors LnClarion, PA 16214
Group practices
Medicare enrollment lists Katherine E. O'Leary as a member of these groups (CMS data updated 2026-10-02).
- Butler Medical Providers360 clinicians in the group
- Butler Imaging and Interventional Associates LLC49 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Butler
Clinicians with the same Medicare primary specialty in Butler, PA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952830994 |
| 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