Quick answers
- Which hospitals does Matthew S. Fiess work at?
- Medicare's official clinician data lists Matthew S. Fiess at 2 hospitals: Community Hospital of the Monterey Peninsula and Salinas Valley Health Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew S. Fiess see patients?
- Medicare's clinician data lists 1 practice location in Gonzales, CA. Call before your visit to confirm the address.
- What is Matthew S. Fiess's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Matthew S. Fiess accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew S. Fiess 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 Matthew S. Fiess?
- (831) 675-3601, as listed in official Medicare / NPI Registry data.
- What is Matthew S. Fiess's NPI number?
- 1477080869. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew S. Fiess works
Medicare's Facility Affiliation Data lists Matthew S. Fiess at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Hospital of the Monterey PeninsulaMonterey, CA · Acute Care Hospital · CCN 050145
- Salinas Valley Health Medical CenterSalinas, CA · Acute Care Hospital · CCN 050334
Practice locations
Addresses where Matthew S. Fiess is enrolled with Medicare (CMS data updated 2026-10-02).
- 850 5th StGonzales, CA 93926 (831) 675‑3601
Group practices
Medicare enrollment lists Matthew S. Fiess as a member of this group (CMS data updated 2026-10-02).
- Salinas Valley Memorial Healthcare System20 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Gonzales
Clinicians with the same Medicare primary specialty in Gonzales, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477080869 |
| 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