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Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.

CHIH YAO CHANG, MD

Active

CHIH YAO CHANG, MD is a Internal Medicine healthcare provider located in SAN FRANCISCO, California. NPI 1730820739 is currently active in the NPPES registry. Verify at CMS.

Internal Medicine · SAN FRANCISCO, CA

Registration Details

NPI Number
1730820739
Provider Type
Individual
Gender
Male
NPI Issued
Apr 5, 2022 (4.3675871340457 yrs)
Last Updated
May 15, 2025
License
A199655 (CA)

Practice Information

Address
521 PARNASSUS AVE
SAN FRANCISCO, CA, 941432206
Browse CA providers · Browse ZIP 94143
Phone
4157505942
Fax
4157505594
Primary Specialty
Internal Medicine
207R00000X
Additional Specialty
Internal Medicine

Other Internal Medicine Providers in SAN FRANCISCO, CA

Name Credential NPI
DR. WILLIAM FRANCIS OWEN JR. M.D. 1154323483
DR. NEDA RATANAWONGSA MD 1598769002
ANDREA K KUNG M.D. 1932105582
DR. CHARLES ALLISON M.D. 1376541060
DR. KENNETH BRUERE MAYBURY M.D. 1295733459
DR. DIANA HILBERT M.D. 1386642551
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.