NPPES file of Aug 9, 2026

James Steven Brust, M.D.

Psychiatry Physician · San Pedro, CA

James Steven Brust, M.D. is a psychiatry physician with a practice address in San Pedro, California, and NPI 1427184571, issued on Feb 25, 2007. Check the license (California G23423, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427184571
Name
James Steven Brust
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G23423 CA
Self-reported in NPPES; status is on the state search
Practice location
2403 S Moray Ave, San Pedro, CA 90732
Phone
(310) 832-7943
Enumerated
Feb 25, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(310) 514-8017
Medicare enrollment
Enrolled (PECOS I20120127000708); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1968
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2403 S Moray Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Janet Blaser, M.A., M.F.T.Marriage & Family Therapist1982875597
  2. Kathryn CumminsClinical Neuropsychologist1891030391
  3. Liana Delikyan, PSY.D.Clinical Psychologist1447294194
  4. Yvette El SayadPsychologist1164009007
  5. Siamak Marzban, M.D.Internal Medicine Physician1164447959
  6. Hanh Tran, D.D.S.Dentist1154596880

Verify James Steven Brust in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G23423
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

50% fewer Medicare Part D claims than the average psychiatry physician in 2024

503 Medicare Part D claims for 38 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. James Brust503
  2. Specialty average1,000

Most prescribed

  1. Alprazolam58 claims
  2. Clonazepam55 claims
  3. Lorazepam36 claims
  4. Bupropion Xl32 claims
  5. Sertraline Hcl30 claims
  6. Escitalopram Oxalate28 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.

James Steven Brust among 8,673 psychiatry physician records in California

James Steven Brust, 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 fileYes · 38% of these records are
  • Graduated1968 · median 2005 among the 3,295 with a school on file
  • 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).

13 psychiatry physician records list a practice address in San Pedro

They are 13 of the 1,072 NPPES records with a practice address in San Pedro, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Mahmoud Ajang, MDSan Pedro, CA 907311922182682
  2. Dennis Coffee, M.D.San Pedro, CA 907311700987021
  3. Robert Davies, M.D.San Pedro, CA 907311962562363
  4. Jack Downhill, MDSan Pedro, CA 907311467522813
  5. Roger Engelbert, MDSan Pedro, CA 907311447338488
  6. Shawki Haffar, M.D.San Pedro, CA 907311477601979
  7. Mark Honig, M.D.San Pedro, CA 907311285703769
  8. Amber Kondor, MDSan Pedro, CA 907311225200710

Common questions

What is James Steven Brust, M.D.'s NPI number?

James Steven Brust, M.D.'s National Provider Identifier (NPI) is 1427184571, issued on Feb 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James Steven Brust, M.D. located?

The NPPES record lists a practice address at 2403 S Moray Ave, San Pedro, CA, 90732. Phone: (310) 832-7943. Providers update this record themselves, so call before visiting.

How can I verify James Steven Brust, M.D.'s license?

NPPES lists California license number G23423, 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 James Steven Brust, M.D. prescribe under Medicare Part D?

In 2024, James Steven Brust, M.D. had 503 Medicare Part D claims for 38 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.