Quick answers
- Which hospitals does William Streiff work at?
- Medicare's official clinician data lists William Streiff at 2 hospitals: Independence Health System Butler Memorial Hospita… and Independence Health System Clarion Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Streiff see patients?
- Medicare's clinician data lists 1 practice location in Butler, PA. Call before your visit to confirm the address.
- What is William Streiff's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does William Streiff accept Medicare assignment?
- Yes. Medicare's clinician data says William Streiff 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 William Streiff?
- (724) 431-4190, as listed in official Medicare / NPI Registry data.
- What is William Streiff's NPI number?
- 1104166834. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Streiff works
Medicare's Facility Affiliation Data lists William Streiff 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
- Independence Health System Clarion HospitalClarion, PA · Acute Care Hospital · CCN 390093
Practice locations
Addresses where William Streiff is enrolled with Medicare (CMS data updated 2026-10-02).
- 129 Oneida Valley Rd, Suite 111Butler, PA 16001 (724) 431‑4190
Group practices
Medicare enrollment lists William Streiff as a member of this group (CMS data updated 2026-10-02).
- Butler Medical Providers360 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Butler
Clinicians with the same Medicare primary specialty in Butler, PA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104166834 |
| 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