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

Dr. James S Chang, MD

Individual provider Internal Medicine Physician · NPI 1417068073

Dr. James S Chang, MD is a Hematology/Oncology in San Francisco, California. Graduated from Icahn School of Medicine at Mount Sinai in 2002, 24 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
24
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA
In the registry since
2006
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

900 Hyde St Ste 410
San Francisco, CA 94109-4806
Phone: (415) 353-6817
Fax: (415) 353-6887
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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 A86238 (CA)

Record details

NPI number1417068073
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESDecember 13, 2021

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE, MEDICAL ONCOLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2002 (24 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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