NPPES file of Aug 9, 2026

Robert Chang, D.O.

Psychiatry Physician · West Hollywood, CA

Robert Chang, D.O. is a psychiatry physician with a practice address in West Hollywood, California, and NPI 1487724308, issued on Nov 8, 2006. Check the license (California 20A6808, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1487724308
Name
Robert Chang
Credential
D.O.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
20A6808 CA
Self-reported in NPPES; status is on the state search
Practice location
8265 Sunset Blvd, West Hollywood, CA 90046
Phone
(323) 375-0950
Enumerated
Nov 8, 2006
Record last updated
Aug 28, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(619) 245-2689
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Robert Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A6808
    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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Robert Chang among 8,673 psychiatry physician records in California

Robert Chang, D.O. 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 not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • 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).

36 psychiatry physician records list a practice address in West Hollywood

They are 36 of the 2,619 NPPES records with a practice address in West Hollywood, and 8,673 psychiatry physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Tsilya Bass, M.D.West Hollywood, CA 900461841330800
  2. Clayton Bullock, MD, PHDWest Hollywood, CA 900461891983748
  3. Lawrence Genen, M.D.West Hollywood, CA 900461558521898
  4. Elizabeth HorstmannLos Angeles, CA 900461265759906
  5. Michael Ingram, M.S., M.D.Los Angeles, CA 900461427438415
  6. Richa Kalra, M.D.West Hollywood, CA 900461164807517
  7. Nathan Kuemmerle, M.D.West Hollywood, CA 900461821030560
  8. Asya Kupisk, MDLos Angeles, CA 900461386742831

Common questions

What is Robert Chang, D.O.'s NPI number?

Robert Chang, D.O.'s National Provider Identifier (NPI) is 1487724308, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Chang, D.O. located?

The NPPES record lists a practice address at 8265 Sunset Blvd, West Hollywood, CA, 90046. Phone: (323) 375-0950. Providers update this record themselves, so call before visiting.

How can I verify Robert Chang, D.O.'s license?

NPPES lists California license number 20A6808, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.