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

Wen-Yee Tsai, MD

Individual provider Internal Medicine Physician · NPI 1952425803

Wen-Yee Tsai, MD is an Endocrinology in Oakland, California. Graduated from State University of New York at Stony Brook, School of Medicine in 2003, 23 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
23
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
CA, WA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

350 30th St Ste 320
Oakland, CA 94609-3424
Phone: (510) 465-7600
Fax: (510) 465-7765
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence A112303 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD00048809 (WA)

Record details

NPI number1952425803
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 18, 2007
Last updated in NPPESDecember 21, 2021
Mailing address350 30th St, Suite 320, Oakland, CA 94609-3424

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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