Quick answers
- Which hospitals does Gilbert Simoni work at?
- Medicare's official clinician data lists Gilbert Simoni at 3 hospitals: Adventist Health Sonora, Los Robles Hospital & Medical Center and Northridge Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gilbert Simoni see patients?
- Medicare's clinician data lists 6 practice locations, including Sonora, CA and Thousand Oaks, CA. Call before your visit to confirm the address.
- What is Gilbert Simoni's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Gilbert Simoni accept Medicare assignment?
- Medicare's clinician data says Gilbert Simoni may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Gilbert Simoni?
- (209) 536-5000, as listed in official Medicare / NPI Registry data.
- What is Gilbert Simoni's NPI number?
- 1316922958. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gilbert Simoni works
Medicare's Facility Affiliation Data lists Gilbert Simoni at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health SonoraSonora, CA · Acute Care Hospital · CCN 050335
- Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · CCN 050549
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · CCN 050116
Practice locations
Addresses where Gilbert Simoni is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1000 Greenley RdSonora, CA 95370 (209) 536‑5000
- 1000 Greenley Rd, Medical StaffSonora, CA 95370
- 193 Fairview LnSonora, CA 95370 (209) 536‑5100
- 555 Marin St, Suite 270Thousand Oaks, CA 91360 (805) 719‑0244
- 680 Guzzi LnSonora, CA 95370
Group practices
Medicare enrollment lists Gilbert Simoni as a member of this group (CMS data updated 2026-10-02).
- Sonora Community Hospital133 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1316922958 |
| 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