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

Irwin Tsai

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1598116824

Irwin Tsai is an Addiction (Substance Use Disorder) Counselor in Bellingham, Washington. Licensed in Washington. Registered with an NPI since 2016.

Licensed in
WA
In the registry since
2016
Specialties on file
2

Practice location Address checks out

609 Northshore Dr
Bellingham, WA 98226-4414
Phone: (360) 676-6000
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 60667145 (WA)
Mental Health Counselor Taxonomy 101YM0800X · Licence 60667145 (WA)

Record details

NPI number1598116824
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 28, 2016
Last updated in NPPESMarch 3, 2017
Mailing address609 Northshore Dr, Bellingham, WA 98226-4414

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