Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Alexander A Chang, MD

Individual provider Pediatrics Physician · NPI 1225356231

Dr. Alexander A Chang, MD is an Internal Medicine in San Francisco, California. Qualified in 2014, 12 years ago. Practices with Truelight Medical Corporation, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
12
Licensed in
CA
In the registry since
2010
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

909 Hyde St Ste 230
San Francisco, CA 94109-4845
Phone: (415) 779-8332
Fax: (415) 537-9078
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A127376 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence A127376 (CA)

Record details

NPI number1225356231
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 14, 2010
Last updated in NPPESJuly 27, 2023
Certification dateJuly 27, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Truelight Medical Corporation — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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