Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathleen Ann Lellis

Marriage & Family Therapist in Mountlake Terrace, WA · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1780355651

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Registry record

Entity type Individual (Type 1)

Name Kathleen Ann Lellis

Sex Female

Practice address 6505 216th St Sw Ste 100, Mountlake Terrace, WA, 98043

Phone (425) 640-7009

Fax (425) 678-6455

Enumeration date Sep 21, 2021

Last updated in NPPES Mar 28, 2025

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 123505 (CA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MG61648835 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
123505	Other	CA	CALIFORNIA BOARD OF BEHAVIORAL SCIENCE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Kathleen Lellis practice?

The practice location on file with NPPES is in Mountlake Terrace, WA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Kathleen Lellis?

The National Provider Identifier (NPI) for Kathleen Lellis is 1780355651, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-28.