TIANTIAN YAN LMHC
NPI 1235810763
Counselor - Mental Health in Woodinville, WA

Q: What is Tiantian Yan's NPI number?

The NPI number for Tiantian Yan is 1235810763. It was assigned to this individual provider in the NPPES registry on July 27, 2023. The provider is also known as Betty Yan Lmhc.

Q: What is Tiantian Yan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: Is Tiantian Yan enrolled in Medicare?

No. Tiantian Yan has opted out of Medicare through February 27, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

Q: When was this NPI record last updated?

The NPPES record for Tiantian Yan was last updated on February 23, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since July 27, 2023Opted out of Medicare · through Feb 27, 2028

17330 135TH AVE NE STE 2B, WOODINVILLE, WA 98072(425) 998-9769(844) 837-1339 Get Directions Write a Review

NPPES record last updated: February 23, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Tiantian Yan Lmhc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TIANTIAN YAN LMHC (NPI 1235810763) is an individual mental health provider in Woodinville, Washington, licensed in Washington (MHC.LH.70066451) and active in the NPI registry since July 2023. She has opted out of Medicare through February 27, 2028.

NPPES Registry Identity

NPI1235810763

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameTIANTIAN YANCredential: LMHC

Location Address17330 135TH AVE NE STE 2BWoodinville, WA 98072-8522

Mailing Address17330 135th Ave Ne Ste 2bWoodinville, WA 98072-8522 · (425) 998-9769 · Fax (844) 837-1339

Phone(425) 998-9769

Fax(844) 837-1339

Sole ProprietorNo

Enumeration DateJuly 27, 2023

Last NPPES UpdateFebruary 23, 2026

NPPES CertifiedFebruary 23, 2026

✔ NPI 1235810763 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in WA · MHC.LH.70066451

17330 135TH AVE NE STE 2B, Woodinville, WA 98072

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Other Names 1

Professional Name (2)Betty Yan Lmhc

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Tiantian Yan Lmhc has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 27, 2026 through February 27, 2028.

Opt-Out Effective DateFebruary 27, 2026

Opt-Out In Effect ThroughFebruary 27, 2028Opt-out affidavits renew automatically every two years unless cancelled

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MAKAYLA JONES LSWAIC

Social Worker (Clinical)