Stephen S. Marmer, M.D.
Psychiatry Physician · Los Angeles, CA
Stephen S. Marmer, M.D. is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1891993309, issued on Jul 5, 2007. Check the license (California G18313, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen S. Marmer
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G18313 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11611 San Vicente Blvd, Los Angeles, CA 90049
- Phone
- (310) 820-4990
- Enumerated
- Jul 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (310) 207-7103
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 11611 San Vicente Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen S. Marmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G18313Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average psychiatry physician in 2024
244 Medicare Part D claims for 21 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Clonazepam35 claims
- Dextroamphetamine-Amphetamine32 claims
- Bupropion Xl15 claims
- Escitalopram Oxalate14 claims
- Fluoxetine Hcl11 claims
- Trazodone Hcl11 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.
Stephen S. Marmer among 8,673 psychiatry physician records in California
Stephen S. Marmer, M.D. 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 fileNo · 38% of these records are
- Record last updated2007 · 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
- Robin Berman, MDLos Angeles, CA 900491730193491
- Patrick Bezdek, M.D.Los Angeles, CA 900491639157100
- Elise Block, M.D.Los Angeles, CA 900491548350804
- Daniel BorensteinLos Angeles, CA 900491518969088
- Christina Ford, M.D.Los Angeles, CA 900491043389943
- Michela Gunn, M.D.Los Angeles, CA 900491205947462
- Leonard Kram, M.D.Los Angeles, CA 900491730126509
- Jean Louis Le Renard, MDLos Angeles, CA 900491548336555
Common questions
What is Stephen S. Marmer, M.D.'s NPI number?
Stephen S. Marmer, M.D.'s National Provider Identifier (NPI) is 1891993309, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen S. Marmer, M.D. located?
The NPPES record lists a practice address at 11611 San Vicente Blvd, Los Angeles, CA, 90049. Phone: (310) 820-4990. Providers update this record themselves, so call before visiting.
How can I verify Stephen S. Marmer, M.D.'s license?
NPPES lists California license number G18313, 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 Stephen S. Marmer, M.D. prescribe under Medicare Part D?
In 2024, Stephen S. Marmer, M.D. had 244 Medicare Part D claims for 21 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.