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

Chai-Yung J. Tsai, MD a Professional Corporation

Organization Family Medicine Physician · NPI 1366747586

Chai-Yung J. Tsai, MD a Professional Corporation provides Family Medicine Physician services in Irvine, California. Registered with an NPI since 2011.

In the registry since
2011

Practice location Address checks out

3943 Irvine Blvd Pmb 136
Irvine, CA 92602-2400 Not confirmed with CMS for 10 years — call before visiting
Phone: (949) 346-4456
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X

Record details

NPI number1366747586
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Chai-Yung Tsai — President · (949) 346-4456
Other names Portola Direct Primary Care
NPI enumeratedJanuary 19, 2011
Last updated in NPPESAugust 2, 2016
Mailing address3943 Irvine Blvd, Pmb 136, Irvine, CA 92602-2400

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