Robert Chang, MD
Family Medicine Physician · Tustin, CA
Robert Chang, MD is a family medicine physician with a practice address in Tustin, California, and NPI 1194954453, issued on Jul 8, 2009. Check the license (California A115738, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Robert Chang
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A115738 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2560 Bryan Ave Ste A, Tustin, CA 92782
- Phone
- (714) 477-8430
- Enumerated
- Jul 8, 2009
- Record last updated
- Jul 27, 2022
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Robert Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A115738Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Robert Chang among 17,133 family medicine physician records in California
Robert 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 not. Its NPI, issued in 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 40% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2022 · 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).
42 family medicine physician records list a practice address in Tustin
They are 42 of the 2,221 NPPES records with a practice address in Tustin, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in Tustin → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shadia Ahmed, M.D.Tustin, CA 927821457566036
- Christine Akparanta, MDTustin, CA 927821184129884
- Stanley Cho, M.D.Tustin, CA 927821780610014
- Mimi Hoang, DOTustin, CA 927821891377594
- Cindy Lee, MDTustin, CA 927821679712947
- Cathrin Lim, MDTustin, CA 927821093150864
- Jonathan Lu, FNP-CTustin, CA 927821043796402
- Anthony Naples, PHD,MDTustin, CA 927821760594790
Common questions
What is Robert Chang, MD's NPI number?
Robert Chang, MD's National Provider Identifier (NPI) is 1194954453, issued on Jul 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Robert Chang, MD located?
The NPPES record lists a practice address at 2560 Bryan Ave Ste A, Tustin, CA, 92782. Phone: (714) 477-8430. Providers update this record themselves, so call before visiting.
How can I verify Robert Chang, MD's license?
NPPES lists California license number A115738, 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.