What is Joan Trettenero's NPI number?

Joan Trettenero's National Provider Identifier (NPI) is 1508365834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joan Trettenero's specialty?

Joan Trettenero is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).

Where is Joan Trettenero located?

Joan Trettenero's practice location on file with NPPES is 6400 Southcenter Blvd, Tukwila, WA 98188-2547.

What is Joan Trettenero's phone number?

The practice phone number listed in the NPPES registry for Joan Trettenero is (206) 901-2000.

Is Joan Trettenero's NPI active?

Yes — Joan Trettenero's NPI (1508365834) is active in the NPPES registry as of the last update on 2025-10-06.

IndividualActive

Joan Trettenero

NPI 1508365834 · Counselor · Tukwila, WA

Joan Trettenero is a Counselor provider in Tukwila, WA (NPI 1508365834).

Provider details

NPI number: 1508365834
Entity type: Individual
Primary specialty: CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

CounselorPrimary101Y00000X
Behavioral Health & Social Service Providers
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(62/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
8 yrs in NPPES registry
Profile completeness38% of score
83% 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

6400 Southcenter Blvd

Tukwila, WA 98188-2547

Phone: (206) 901-2000

Street-level locationGet directions

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Mailing address