Aaron Jacob Watson, MD
Psychiatry Physician · Los Angeles, CA
Aaron Jacob Watson, MD is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1386273027, issued on Apr 4, 2020. Check the license (California A178832, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aaron Jacob Watson
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- A178832 CA
PTL4543 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2116 Arlington Ave, Los Angeles, CA 90018
- Phone
- (323) 334-9000
- Enumerated
- Apr 4, 2020
- Record last updated
- Oct 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20220825003871); accepts Medicare assignment
- Medical or professional school
- Un Of California, Riverside, School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 2116 Arlington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vitelio Aguilar, BARehabilitation Practitioner1497870745
- Mary AlvaradoStudent in an Organized Health Care Education/Training Program1003398926
- Therese AponttiMarriage & Family Therapist1518449735
- Lynette ArzoomanianMental Health Counselor1184872061
- Elliot AshClinical Social Worker1548745888
- Amanda BakerProfessional Counselor1649944299
Verify Aaron Jacob Watson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178832Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average psychiatry physician in 2024
215 Medicare Part D claims for 51 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Aripiprazole24 claims
- Trazodone Hcl19 claims
- Escitalopram Oxalate15 claims
- Bupropion Xl14 claims
- Fluoxetine Hcl13 claims
- Mirtazapine12 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 one group practice
- Southern California Permanente Medical GroupOntario, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron Jacob Watson among 8,673 psychiatry physician records in California
Aaron Jacob Watson, 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 2020, is newer than 87% of them.
- NPI issued2020 · 87% of these records are older, 9% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2020 · median 2005 among the 3,295 with a school on file
- Record last updated2024 · 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
- Jessica Bodden, MDLos Angeles, CA 900181396327656
- Ian Gold, MDLos Angeles, CA 900181639732845
- Cheryl Hendricks, MDLos Angeles, CA 900181144563107
- Avis Ko, DOLos Angeles, CA 900181205681855
- Daniella McDonald, MD, PHDLos Angeles, CA 900181972207314
- Alana Slavin, MDLos Angeles, CA 900181619626488
- Jennifer Tu, MDLos Angeles, CA 900181679109185
- Hiawatha Harris, M.D.Los Angeles, CA 900171780722488
Common questions
What is Aaron Jacob Watson, MD's NPI number?
Aaron Jacob Watson, MD's National Provider Identifier (NPI) is 1386273027, issued on Apr 4, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Jacob Watson, MD located?
The NPPES record lists a practice address at 2116 Arlington Ave, Los Angeles, CA, 90018. Phone: (323) 334-9000. Providers update this record themselves, so call before visiting.
How can I verify Aaron Jacob Watson, MD's license?
NPPES lists California license number A178832, 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 Aaron Jacob Watson, MD prescribe under Medicare Part D?
In 2024, Aaron Jacob Watson, MD had 215 Medicare Part D claims for 51 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.