CHELSEA ALEXANDRIA ALLEN LCSW
NPI 1164983458
Social Worker - Clinical in Seattle, WA

Active since March 28, 2019
450 ALASKAN WAY S STE 200, SEATTLE, WA 98104(323) 205-7088 Get Directions Write a Review

NPPES record last updated: April 18, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 18, 2026, Jan 8, 2020 (2 updates tracked since 2020).

About Chelsea Alexandria Allen Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHELSEA ALEXANDRIA ALLEN LCSW (NPI 1164983458) is an individual clinical provider in Seattle, Washington, licensed in Washington (SW.LW.61582196) and active in the NPI registry since March 2019.

NPPES Registry Identity

NPI1164983458
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCHELSEA ALEXANDRIA ALLENCredential: LCSW
Location Address450 ALASKAN WAY S STE 200Seattle, WA 98104-2785
Mailing Address205 Hudson St Fl 9New York, NY 10013-1810 · (843) 296-6827
Sole ProprietorNo
Enumeration DateMarch 28, 2019
Last NPPES UpdateApril 18, 20262 updates tracked since enumeration
NPPES CertifiedApril 18, 2026
NPI 1164983458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses Licensed in WA · SW.LW.61582196 Licensed in NY · 091497
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
450 ALASKAN WAY S STE 200, Seattle, WA 98104

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Mental Health)
450 ALASKAN WAY S STE 200
SEATTLE, WA 98104
Nurse Practitioner (Family)
450 ALASKAN WAY S STE 200, #9452
SEATTLE, WA 98104
Nurse Practitioner (Family)
450 ALASKAN WAY S STE 200
SEATTLE, WA 98104
Nurse Practitioner
450 ALASKAN WAY S STE 200
SEATTLE, WA 98104
Counselor (Mental Health)
450 ALASKAN WAY S STE 200
SEATTLE, WA 98104
Nurse Practitioner (Psychiatric/Mental Health)
450 ALASKAN WAY S STE 200
SEATTLE, WA 98104
Nurse Practitioner (Family)
450 ALASKAN WAY S STE 200, # 9452
SEATTLE, WA 98104
In Home Supportive Care
450 ALASKAN WAY S STE 200
SEATTLE, WA 98104

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Chelsea Allen's NPI number?

The NPI number for Chelsea Allen is 1164983458. It was assigned to this individual provider in the NPPES registry on March 28, 2019.

Where is Chelsea Allen located?

Chelsea Allen practices at 450 Alaskan Way S Ste 200, Seattle, WA 98104. The listed phone number is (323) 205-7088.

What is Chelsea Allen's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Chelsea Allen was last updated on April 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.