Gilbert M. Simas, MD
Psychiatry Physician · Los Angeles, CA
Gilbert M. Simas, MD is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1497802383, issued on Jan 4, 2007. Check the license (California C178910, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gilbert M. Simas
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- C178910 CA
46439 AZ
DR.0068674 CO
LL18197 OR
MD60044426 WA
Self-reported in NPPES; status is on the state search - Practice location
- 6500 Wilshire Blvd FL 19, Los Angeles, CA 90048
- Phone
- (805) 764-9651
- Enumerated
- Jan 4, 2007
- Record last updated
- Jul 2, 2026
- Fax
- (747) 330-1670
- Medicare enrollment
- Enrolled (PECOS I20090707000365); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 6500 Wilshire Blvd FL 19
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ronald Baker, MSWClinical Social Worker1134821432
- Olajumoke Bell, PMHNPPsychiatric/Mental Health Nurse Practitioner1114694635
- Patricia Boyle, DNPPsychiatric/Mental Health Nurse Practitioner1801634704
- Ashley Branham, LCSWClinical Social Worker1194863464
- Caryn Cortez, MSWClinical Social Worker1194034405
- Romana Crespo-Belarde, MSW, LCSWClinical Social Worker1922273549
Verify Gilbert M. Simas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C178910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average psychiatry physician in 2024
2,176 Medicare Part D claims for 321 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl178 claims
- Lorazepam122 claims
- Olanzapine97 claims
- Quetiapine Fumarate89 claims
- Olanzapine Odt88 claims
- Sertraline Hcl86 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 4 group practices
- County OF Santa ClaraSan Jose, CA
- Forefront-Rosenzweig Medical Services Professional CorporationTumwater, WA
- Integrative Psychiatry A Medical CorporationLaguna Niguel, CA
- Rainier Springs Physician Group LLCVancouver, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gilbert M. Simas among 8,673 psychiatry physician records in California
Gilbert M. Simas, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2004 · median 2005 among the 3,295 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
987 psychiatry physician records list a practice address in Los Angeles
They are 987 of the 69,537 NPPES records with a practice address in Los Angeles, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Los Angeles → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Thomas Apostle, D.O.Los Angeles, CA 900481174575757
- Paul Barkopoulos, M.D.Los Angeles, CA 900481396859807
- Bernard BiermanWest Hollywood, CA 900481295842243
- Alan Coe, MDLos Angeles, CA 900481083696520
- Sofia Encarnacion, MDWest Hollywood, CA 900481992819528
- Christine Forest, MDLos Angeles, CA 900481407869431
- Hagop Hajian, M.D.Los Angeles, CA 900481417992801
- Waguih Ishak, M.D.West Hollywood, CA 900481508840448
Common questions
What is Gilbert M. Simas, MD's NPI number?
Gilbert M. Simas, MD's National Provider Identifier (NPI) is 1497802383, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gilbert M. Simas, MD located?
The NPPES record lists a practice address at 6500 Wilshire Blvd FL 19, Los Angeles, CA, 90048. Phone: (805) 764-9651. Providers update this record themselves, so call before visiting.
How can I verify Gilbert M. Simas, MD's license?
NPPES lists California license number C178910, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gilbert M. Simas, MD prescribe under Medicare Part D?
In 2024, Gilbert M. Simas, MD had 2,176 Medicare Part D claims for 321 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.