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MASTERY MENTAL HEALTH PLLC
NPI 1356942064
Social Worker - Clinical in Mukilteo, WA

Active since November 09, 2020
627 5TH ST STE 200, MUKILTEO, WA 98275(206) 309-3839(425) 513-2329 Get Directions Write a Review

NPPES record last updated: November 9, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mastery Mental Health Pllc NPPES

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

MASTERY MENTAL HEALTH PLLC (NPI 1356942064) is a healthcare organization registered as a clinical in Mukilteo, Washington and active in the NPI registry since November 2020. The organization lists Geoffrey Michael Simkins, Owner/counselor, as its authorized official.

NPPES Registry Identity

NPI1356942064
Entity TypeOrganization
Primary Taxonomy1041C0700X
Legal Business NameMASTERY MENTAL HEALTH PLLC
Location Address627 5TH ST STE 200Mukilteo, WA 98275-1580
Mailing Address627 5th St Ste 200Mukilteo, WA 98275-1580 · (206) 309-3839
Phone(206) 309-3839
Fax(425) 513-2329
Organization SubpartNo
Authorized OfficialGeoffrey Michael SimkinsOwner/counselor · (360) 566-3722
Enumeration DateNovember 9, 2020
NPPES CertifiedNovember 9, 2020
✔ NPI 1356942064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
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.
Also ListedCounselorTaxonomy 101Y00000X
627 5TH ST STE 200, Mukilteo, WA 98275
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

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

MR. GEOFFREY MICHAEL SIMKINS MSW
Social Worker (Clinical)
627 5TH ST STE 200
MUKILTEO, WA 98275
Snohomish County (206) 309-3839

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 Mastery Mental Health PLLC's NPI number?

The NPI number for Mastery Mental Health PLLC is 1356942064. It was assigned to this organization in the NPPES registry on November 9, 2020.

Where is Mastery Mental Health PLLC located?

Mastery Mental Health PLLC is located at 627 5th St Ste 200, Mukilteo, WA 98275. The listed phone number is (206) 309-3839.

What is Mastery Mental Health PLLC'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 Mastery Mental Health PLLC was last updated on November 9, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.