Quick answers
- Which hospitals does Stephen C. Williams work at?
- Medicare's official clinician data lists Stephen C. Williams at 1 hospital: Mayers Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen C. Williams see patients?
- Medicare's clinician data lists 2 practice locations, including Burney, CA and Fall River Mills, CA. Call before your visit to confirm the address.
- What is Stephen C. Williams's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Stephen C. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen C. Williams 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 Stephen C. Williams?
- (530) 999-9030, as listed in official Medicare / NPI Registry data.
- What is Stephen C. Williams's NPI number?
- 1477537736. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen C. Williams works
Medicare's Facility Affiliation Data lists Stephen C. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mayers Memorial HospitalFall River Mills, CA · Critical Access Hospital · CCN 051305
Practice locations
Addresses where Stephen C. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 37491 Enterprise DrBurney, CA 96013 (530) 999‑9030
- 43658 Hwy 299Fall River Mills, CA 96028 (530) 999‑9020
Group practices
Medicare enrollment lists Stephen C. Williams as a member of this group (CMS data updated 2026-10-02).
- Mountain Valleys Health Centers33 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477537736 |
| 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