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

Ruth Siew, MD

Individual provider Pediatrics Physician · NPI 1255674479

Ruth Siew, MD is a Pulmonary Disease in San Francisco, California. Graduated from University of Washington School of Medicine in 2016, 10 years ago. Practices with UCSF Pediatrics Associates, a 107-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
10
Trained at
University of Washington School of Medicine
Licensed in
CA
In the registry since
2013
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

1825 4th St Fl 6
San Francisco, CA 94143-2350
Phone: (415) 353-7337
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Pulmonology Physician (primary) Taxonomy 2080P0214X · Licence A132946 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence A132946 (CA)

Record details

NPI number1255674479
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 5, 2013
Last updated in NPPESJuly 8, 2022
Certification dateJuly 8, 2022

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Ucsf Pediatrics Associates — 107 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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