Thomas Adam Cotsen, M.D.
Psychiatry Physician · Los Angeles, CA
Thomas Adam Cotsen, M.D. is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1699851162, issued on Oct 27, 2006. Check the license (California G79392, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas Adam Cotsen
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G79392 CA
Self-reported in NPPES; status is on the state search - Practice location
- 116 N Robertson Blvd, Los Angeles, CA 90048
- Phone
- (310) 659-8640
- Enumerated
- Oct 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 116 N Robertson Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alan Coe, MDPsychiatry Physician1083696520
- Gail Devlin-Moradi, PH.D.Psychologist1134425069
- Christine Forest, MDPsychiatry Physician1407869431
Verify Thomas Adam Cotsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79392Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average psychiatry physician in 2024
140 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Sertraline Hcl32 claims
- Clonazepam25 claims
- Bupropion Xl24 claims
- Trintellix14 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.
Thomas Adam Cotsen among 8,673 psychiatry physician records in California
Thomas Adam Cotsen, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% 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
- 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 Thomas Adam Cotsen, M.D.'s NPI number?
Thomas Adam Cotsen, M.D.'s National Provider Identifier (NPI) is 1699851162, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Adam Cotsen, M.D. located?
The NPPES record lists a practice address at 116 N Robertson Blvd, Los Angeles, CA, 90048. Phone: (310) 659-8640. Providers update this record themselves, so call before visiting.
How can I verify Thomas Adam Cotsen, M.D.'s license?
NPPES lists California license number G79392, 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 Thomas Adam Cotsen, M.D. prescribe under Medicare Part D?
In 2024, Thomas Adam Cotsen, M.D. had 140 Medicare Part D claims; 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.