Tiffany Yung-Chin Chang, M.D.
Pediatric Hematology & Oncology Physician · San Francisco, CA
Tiffany Yung-Chin Chang, M.D. is a pediatric hematology & oncology physician with a practice address in San Francisco, California, and NPI 1285827188, issued on Aug 23, 2007. Check the license (California A103533, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tiffany Yung-Chin Chang
- Credential
- M.D.
- Primary taxonomy
- Pediatric Hematology & Oncology Physician 2080P0207X
- License number
- A103533 CA
Self-reported in NPPES; status is on the state search - Practice location
- 505 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 476-3831
- Enumerated
- Aug 23, 2007
- Record last updated
- Jul 30, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 505 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
- Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
- Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
- Abul Abbas, MBBSAnatomic Pathology Physician1881652964
- Jesse Abelson, MDInternal Medicine Physician1083843817
- Rhonald AbitonaAcute Care Nurse Practitioner1164993473
Verify Tiffany Yung-Chin Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103533Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average pediatric hematology & oncology physician in 2024
15 Medicare Part D claims, against an average of 94 among the 300 providers of this specialty who prescribed in Part D.
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.
Pediatric Hematology & Oncology Physician providers in California
There are 417 pediatric hematology & oncology physician records in California.
Other pediatric hematology & oncology physician records in California
- Hisham Abdel-Azim, MDLos Angeles, CA1114018694
- Ragini Adams, MDPalo Alto, CA1548655269
- Scott Adams, MDRoseville, CA1013067818
- Catherine Aftandilian, MDPalo Alto, CA1154526762
- Rajni Agarwal, MDPalo Alto, CA1053455535
- Shreya Agarwal, MDSan Francisco, CA1841654944
- Anurag Agrawal, MDOakland, CA1346485026
- Paibel Aguayo-Hiraldo, M.D.Los Angeles, CA1700012317
- Maria Ahmad-Nabi, MDLos Angeles, CA1104185206
- Hyunah Ahn, M.D.San Diego, CA1255403879
Common questions
What is Tiffany Yung-Chin Chang, M.D.'s NPI number?
Tiffany Yung-Chin Chang, M.D.'s National Provider Identifier (NPI) is 1285827188, issued on Aug 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tiffany Yung-Chin Chang, M.D. located?
The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-3831. Providers update this record themselves, so call before visiting.
How can I verify Tiffany Yung-Chin Chang, M.D.'s license?
NPPES lists California license number A103533, 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 Tiffany Yung-Chin Chang, M.D. prescribe under Medicare Part D?
In 2024, Tiffany Yung-Chin Chang, M.D. had 15 Medicare Part D claims; the average among pediatric hematology & oncology physician prescribers was 94. 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.