NPPES file of Aug 9, 2026

Anthony Chang, MD

Family Medicine Physician · Santa Ana, CA

Anthony Chang, MD is a family medicine physician with a practice address in Santa Ana, California, and NPI 1134823958, issued on Mar 27, 2023. Check the license (California 199905, 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
1134823958
Name
Anthony Chang
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
199905 CA
Self-reported in NPPES; status is on the state search
Practice location
1212 W 17TH St, Santa Ana, CA 92706
Phone
(714) 954-0432
Enumerated
Mar 27, 2023
Record last updated
Jul 31, 2026
Fax
(714) 796-6265
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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Also registered at 1212 W 17TH St

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

  1. Hidenori Ikuhara, M.D.Internal Medicine Physician1598889750
  2. Dean Jacobs, M.D.Pediatrics Physician1497802318
  3. Verlicia Lee, PA-CPhysician Assistant1497212252
  4. Giselle Mata, FNPNurse Practitioner1255659892
  5. Robert Olvera, MDFamily Medicine Physician1356322523
  6. Ronald Ortiz, M.D.Family Medicine Physician1235205774

Verify Anthony 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 199905
    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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99% fewer Medicare Part D claims than the average family medicine physician in 2024

24 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Anthony Chang24
  2. Specialty average3,544

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.

Anthony Chang among 17,133 family medicine physician records in California

Anthony Chang, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 97% of them.

  • NPI issued2023 · 97% of these records are older, 1% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

177 family medicine physician records list a practice address in Santa Ana

They are 177 of the 8,904 NPPES records with a practice address in Santa Ana, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Antonio Carbayo, MDSanta Ana, CA 927061033149356
  2. Regina Chinsiokwong, D.O.Santa Ana, CA 927061265597488
  3. Long Duong, M.D.Santa Ana, CA 927061538257241
  4. Judith Friedland, M.D.Santa Ana, CA 927061043388978
  5. Cam-Van Huynh, MDSanta Ana, CA 927061366524290
  6. Julie Johnson, M.D.Santa Ana, CA 927061780697342
  7. Yin-Ming Liu, M.D.Santa Ana, CA 927061346327541
  8. Manuel Medina, PACSanta Ana, CA 927061952498867

Common questions

What is Anthony Chang, MD's NPI number?

Anthony Chang, MD's National Provider Identifier (NPI) is 1134823958, issued on Mar 27, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Chang, MD located?

The NPPES record lists a practice address at 1212 W 17TH St, Santa Ana, CA, 92706. Phone: (714) 954-0432. Providers update this record themselves, so call before visiting.

How can I verify Anthony Chang, MD's license?

NPPES lists California license number 199905, 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 Anthony Chang, MD prescribe under Medicare Part D?

In 2024, Anthony Chang, MD had 24 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.