Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. William Stephen Chung, MD

Individual provider Internal Medicine Physician · NPI 1831204486

Dr. William Stephen Chung, MD is an Internal Medicine in San Francisco, California. Qualified in 1984, 42 years ago. Practices with Chinese Hospital Association, a 36-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
42
Licensed in
CA
In the registry since
2006
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

728 Pacific Ave Ste 507
San Francisco, CA 94133-4457
Phone: (415) 986-2239
Fax: (415) 986-2237
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence A51482 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A51482 (CA)

Record details

NPI number1831204486
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 21, 2006
Last updated in NPPESJune 26, 2026
Certification dateJune 26, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Chinese Hospital Association — 36 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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