NPPES file of Aug 9, 2026

Gene Yen, PSYCHIATRIST

Psychiatry Physician · Los Angeles, CA

Gene Yen, PSYCHIATRIST is a psychiatry physician with a practice address in Los Angeles, California, and NPI 1477581379, issued on Jun 29, 2006. Check the license (California A71973, 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
1477581379
Name
Gene Yen
Credential
PSYCHIATRIST
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A71973 CA
Self-reported in NPPES; status is on the state search
Practice location
600 St Paul Ave Ste 101, Los Angeles, CA 90017
Phone
(213) 483-3000
Enumerated
Jun 29, 2006
Record last updated
Dec 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100309000485); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1996
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.
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Also registered at 600 St Paul Ave Ste 101

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

  1. Thao Deguia, LCSWClinical Social Worker1285827568
  2. Shannon Ham, CASE MANAGERCase Manager/Care Coordinator1356809164
  3. Yoobin HuhCommunity Health Worker1861041436
  4. Sung Hea Hwang, LCSWClinical Social Worker1104134188
  5. Namhoon Jeon, CASE MANAGERCase Manager/Care Coordinator1457811945
  6. Ju Hea Park, ACSWMental Health Counselor1336664317

Verify Gene Yen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A71973
    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.

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39% more Medicare Part D claims than the average psychiatry physician in 2024

1,386 Medicare Part D claims for 75 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.

  1. Gene Yen1,386
  2. Specialty average1,000

Most prescribed

  1. Olanzapine173 claims
  2. Trazodone Hcl116 claims
  3. Mirtazapine101 claims
  4. Risperidone89 claims
  5. Quetiapine Fumarate77 claims
  6. Escitalopram Oxalate67 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

  1. Special Service For Groups IncCerritos, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gene Yen among 8,673 psychiatry physician records in California

Gene Yen, PSYCHIATRIST 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 fileYes · 38% of these records are
  • Graduated1996 · median 2005 among the 3,295 with a school on file
  • Record last updated2020 · 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.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Hiawatha Harris, M.D.Los Angeles, CA 900171780722488
  2. Rachel Knight, MDLos Angeles, CA 900171437682051
  3. Maria Mayoral, M.D.Los Angeles, CA 900171669685012
  4. Adel Mostafavi, MDLos Angeles, CA 900171962526756
  5. Priyamvada Narayanan, MDLos Angeles, CA 900171346466067
  6. Brenda Quon, MDLos Angeles, CA 900171215950118
  7. Berthold Shin, DOLos Angeles, CA 900171255745477
  8. Sham Singh, MDLos Angeles, CA 900171457812349

Common questions

What is Gene Yen, PSYCHIATRIST's NPI number?

Gene Yen, PSYCHIATRIST's National Provider Identifier (NPI) is 1477581379, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gene Yen, PSYCHIATRIST located?

The NPPES record lists a practice address at 600 St Paul Ave Ste 101, Los Angeles, CA, 90017. Phone: (213) 483-3000. Providers update this record themselves, so call before visiting.

How can I verify Gene Yen, PSYCHIATRIST's license?

NPPES lists California license number A71973, 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 Gene Yen, PSYCHIATRIST prescribe under Medicare Part D?

In 2024, Gene Yen, PSYCHIATRIST had 1,386 Medicare Part D claims for 75 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.