Tiantian Yan, LMHC
NPI 1235810763 · Mental Health Counselor · Woodinville, WA
Tiantian Yan, LMHC is a Mental Health Counselor provider in Woodinville, WA (NPI 1235810763).
Provider details
- NPI number
- 1235810763
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC
- Sex
- Female
- Sole proprietor
- No
- License
- MHC.LH.70066451 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-07-27
- Last updated
- 2026-02-23
- Certified
- 2026-02-23
Frequently asked questions
- What is Tiantian Yan's NPI number?
- Tiantian Yan's National Provider Identifier (NPI) is 1235810763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiantian Yan's specialty?
- Tiantian Yan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Tiantian Yan located?
- Tiantian Yan's practice location on file with NPPES is 17330 135th Ave Ne Ste 2b, Woodinville, WA 98072-8522.
- What is Tiantian Yan's phone number?
- The practice phone number listed in the NPPES registry for Tiantian Yan is (425) 998-9769.
- Is Tiantian Yan's NPI active?
- Yes — Tiantian Yan's NPI (1235810763) is active in the NPPES registry as of the last update on 2026-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.