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

Tiantian Yan, LMHC

Individual provider Mental Health Counselor · NPI 1235810763

Tiantian Yan, LMHC is a Mental Health Counselor in Woodinville, Washington. Licensed in Washington. Registered with an NPI since 2023.

Licensed in
WA
In the registry since
2023
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

17330 135th Ave NE Ste 2B
Woodinville, WA 98072-8522
Phone: (425) 998-9769
Fax: (844) 837-1339
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence MHC.LH.70066451 (WA)

Record details

NPI number1235810763
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorNo
NPI enumeratedJuly 27, 2023
Last updated in NPPESFebruary 23, 2026
Certification dateFebruary 23, 2026

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