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

Stacy Sang-Ah Han

Individual provider Internal Medicine Physician · NPI 1225665938

Stacy Sang-Ah Han practises Geriatric Medicine in San Francisco, California. Graduated from University of California, San Francisco School of Medicine in 2020, 6 years ago. Practices with Regents of the University of California, a 717-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
6
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA
In the registry since
2020
Specialties on file
2
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Practice location Address checks out

3555 Cesar Chavez
San Francisco, CA 94110-4403
Phone: (415) 600-6000
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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 185378 (CA)
Geriatric Medicine (Internal Medicine) Physician Taxonomy 207RG0300X · Licence A185378 (CA)

Record details

NPI number1225665938
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 24, 2020
Last updated in NPPESJuly 16, 2026
Certification dateJuly 16, 2026

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice Regents Of The University Of California — 717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients49
Services billed 171 a service is one billed item, such as a visit, a test or a procedure
Average patient age83

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 717 clinicians in the practice; 12 are shown here.

Other providers in San Francisco