NPPES file of Aug 9, 2026

Richard S. Chang, M.D.

Diagnostic Radiology Physician · Santa Monica, CA

Richard S. Chang, M.D. is a diagnostic radiology physician with a practice address in Santa Monica, California, and NPI 1154384311, issued on Apr 10, 2006. Check the license (California A73466, 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
1154384311
Name
Richard S. Chang
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A73466 CA
Self-reported in NPPES; status is on the state search
Practice location
344 18TH St, Santa Monica, CA 90402
Phone
(310) 260-8581
Enumerated
Apr 10, 2006
Record last updated
Mar 14, 2025
Fax
(888) 960-2154
Medicaid ID
00L075240 CA
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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8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →

Verify Richard S. 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 A73466    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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Industry payments in 2024: $82.38

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Richard Chang$82.38
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Richard S. Chang among 4,500 diagnostic radiology physician records in California

Richard S. Chang, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

All 4,500 in California → Every provider in Santa Monica → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Ian Matsuura, M.D.Santa Monica, CA 904021447200266
  2. Richard Goldman, MDSanta Monica, CA 904031316984958
  3. Robert Gray, MDSanta Monica, CA 904031497792030
  4. Theodore Hittle, M.D.Santa Monica, CA 904031689628083
  5. Daniel Kirsch, MDSanta Monica, CA 904031689613408
  6. Debra Mund, M.D.Santa Monica, CA 904031326023516
  7. Rita Perrella, MDSanta Monica, CA 904031942282934
  8. Gerald Roth, MDSanta Monica, CA 904031740227594

Common questions

What is Richard S. Chang, M.D.'s NPI number?

Richard S. Chang, M.D.'s National Provider Identifier (NPI) is 1154384311, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Richard S. Chang, M.D. located?

The NPPES record lists a practice address at 344 18TH St, Santa Monica, CA, 90402. Phone: (310) 260-8581. Providers update this record themselves, so call before visiting.

How can I verify Richard S. Chang, M.D.'s license?

NPPES lists California license number A73466, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.