Quick answers
- Which hospitals does Gilbert M. Simas work at?
- Medicare's official clinician data lists Gilbert M. Simas at 2 hospitals: Memorial Hospital Los Banos and Santa Clara Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gilbert M. Simas see patients?
- Medicare's clinician data lists 6 practice locations, including Tumwater, WA, Vancouver, WA and Laguna Niguel, CA. Call before your visit to confirm the address.
- What is Gilbert M. Simas's specialty?
- Medicare lists Psychiatry as the primary specialty, and also Neurology.
- Does Gilbert M. Simas accept Medicare assignment?
- Yes. Medicare's clinician data says Gilbert M. Simas 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.
- Does Gilbert M. Simas offer telehealth?
- Medicare's clinician data says Gilbert M. Simas offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Gilbert M. Simas?
- (972) 449-0540, as listed in official Medicare / NPI Registry data.
- What is Gilbert M. Simas's NPI number?
- 1497802383. 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 M. Simas works
Medicare's Facility Affiliation Data lists Gilbert M. Simas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial Hospital Los BanosLos Banos, CA · Acute Care Hospital · CCN 050528
- Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · CCN 050038
Practice locations
Addresses where Gilbert M. Simas is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1780 Barnes Blvd SWTumwater, WA 98512 (972) 449‑0540
- 2805 NE 129th StVancouver, WA 98686 (360) 356‑1890
- 29982 Ivy Glenn Dr, Suite 203Laguna Niguel, CA 92677 (949) 309‑7903
- 3625 E Thousand Oaks Blvd, Suite 232Westlake Village, CA 91362 (818) 518‑9715
- 751 S Bascom AveSan Jose, CA 95128 (408) 885‑5000
Group practices
Medicare enrollment lists Gilbert M. Simas as a member of these groups (CMS data updated 2026-10-02).
- County of Santa Clara1,022 clinicians in the group
- Pacific Heritage Medical Group Inc63 clinicians in the group
- Forefront-Rosenzweig Medical Services Professional Corporation38 clinicians in the group
- Integrative Psychiatry a Medical Corporation8 clinicians in the group
- Rainier Springs Physician Group LLC7 clinicians in the group
Specialties
- Psychiatryprimary
- Neurologyalso
Other psychiatrists in Washington
Clinicians with the same Medicare primary specialty in Washington — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1497802383 |
| 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