What is Hannah Katz's NPI number?

Hannah Katz's National Provider Identifier (NPI) is 1134953938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Hannah Katz's specialty?

Hannah Katz is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is Hannah Katz located?

Hannah Katz's practice location on file with NPPES is 6770 E Marginal Way S Ste 321, Seattle, WA 98108-3405.

What is Hannah Katz's phone number?

The practice phone number listed in the NPPES registry for Hannah Katz is (206) 207-5395.

Is Hannah Katz's NPI active?

Yes — Hannah Katz's NPI (1134953938) is active in the NPPES registry as of the last update on 2026-05-08.

IndividualActive

Hannah Katz

NPI 1134953938 · Social Worker · Seattle, WA

Hannah Katz is a Social Worker provider in Seattle, WA (NPI 1134953938).

Provider details

NPI number: 1134953938
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No
License: SWIA.SC.61555375 (WA)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense SWIA.SC.61555375 (WA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(56/100 index)

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

Registry tenure38% of score
1 yr 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

6770 E Marginal Way S Ste 321

Seattle, WA 98108-3405

Phone: (206) 207-5395

Street-level locationGet directions

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Mailing address