Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Katy Chien-Chien Young-Lee, MD

Individual provider Internal Medicine Physician · NPI 1841259173

Katy Chien-Chien Young-Lee, MD practises Internal Medicine in Emeryville, California. Graduated from University of Vermont College of Medicine in 1999, 27 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
27
Trained at
University of Vermont College of Medicine
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

5800 Hollis St
Emeryville, CA 94608-2016
Phone: (510) 806-2100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3100 Telegraph Ave # 2000, Oakland, CA 94609-3239 — (510) 204-8290

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A73200 (CA)

Record details

NPI number1841259173
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2006
Last updated in NPPESMarch 19, 2026
Certification dateMarch 19, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF VERMONT COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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 patients426
Services billed 1,315 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 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 Emeryville