Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Yongyan Cui

Individual provider Gastroenterology Physician · NPI 1265895825

Dr. Yongyan Cui practises Gastroenterology in San Francisco, California. Qualified in 2016, 10 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
10
Licensed in
CA, WA
In the registry since
2016
Specialties on file
2
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Practice location Address checks out

1100 Van Ness Ave
San Francisco, CA 94109-6978
Phone: (415) 600-1151
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1100 9th Ave, Seattle, WA 98101-2756 — (206) 223-2319

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A186244 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence MD61254084 (WA)

Record details

NPI number1265895825
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 31, 2016
Last updated in NPPESNovember 15, 2024
Certification dateNovember 15, 2024

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 540 times · 99th percentile
Colonoscopy 42 times · 60th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients192
Services billed 569 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Sutter Bay Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3762 clinicians in the practice; 12 are shown here.

Other providers in San Francisco