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

Chao-Wei Tsai, MD

Individual provider Internal Medicine Physician · NPI 1447607171

Chao-Wei Tsai, MD is an Internal Medicine in Olympia, Washington. Qualified in 2016, 10 years ago. Practices with Providence Health and Services Washington, a 480-clinician group and accepts Medicare assignment. Licensed in New York and Washington.

Years since qualifying
10
Licensed in
NY, WA
In the registry since
2016
Specialties on file
3
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

413 Lilly Rd NE
Olympia, WA 98506-5133
Phone: (360) 493-4083
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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 MD61158561 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 298699 (NY)
Hospitalist Physician Taxonomy 208M00000X · Licence MD61158561 (WA)

Record details

NPI number1447607171
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2016
Last updated in NPPESMay 4, 2022
Certification dateMay 4, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Providence Health And Services Washington — 480 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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