What is Arren Lenau's NPI number?

Arren Lenau's National Provider Identifier (NPI) is 1790409456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Arren Lenau's specialty?

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

Where is Arren Lenau located?

Arren Lenau's practice location on file with NPPES is 1713 Harvard Ave, Seattle, WA 98122-2227.

What is Arren Lenau's phone number?

The practice phone number listed in the NPPES registry for Arren Lenau is (206) 430-0352.

Is Arren Lenau's NPI active?

Yes — Arren Lenau's NPI (1790409456) is active in the NPPES registry as of the last update on 2026-05-04.

IndividualActive

Arren Lenau, MSW

NPI 1790409456 · Counselor · Seattle, WA

Arren Lenau, MSW is a Counselor provider in Seattle, WA (NPI 1790409456).

Provider details

NPI number: 1790409456
Entity type: Individual
Primary specialty: CounselorBehavioral Health & Social Service Providers
Credential: MSW
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

CounselorPrimary101Y00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
4 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

1713 Harvard Ave

Seattle, WA 98122-2227

Phone: (206) 430-0352

Street-level locationGet directions

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Mailing address