Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MERCEDES LAUREN GAGNON LCSW
NPI 1386503951
Social Worker - Clinical in Hamilton, MT

Active since January 20, 2026

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mercedes Lauren Gagnon Lcsw NPPES

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

MERCEDES LAUREN GAGNON LCSW (NPI 1386503951) is an individual clinical provider in Hamilton, Montana, licensed in Montana (BBH-LCSW-LIC-90760) and active in the NPI registry since January 2026. She maintains a secondary practice location in Missoula.

NPPES Registry Identity

NPI1386503951
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMERCEDES LAUREN GAGNONCredential: LCSW
Location AddressPO BOX 2Hamilton, MT 59840-0002
Mailing Address254 Carriage RdHamilton, MT 59840-3416 · (269) 615-0439
Sole ProprietorNo
Enumeration DateJanuary 20, 2026
Last NPPES UpdateOctober 21, 2026
NPPES CertifiedOctober 21, 2026
✔ NPI 1386503951 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MT · BBH-LCSW-LIC-90760
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.
PO BOX 2, Hamilton, MT 59840

Secondary Practice Location 1

Location 16751 Linda Vista BlvdMissoula, MT 59803-2769 · Phone (269) 615-0439

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 Mercedes Gagnon's NPI number?

The NPI number for Mercedes Gagnon is 1386503951. It was assigned to this individual provider in the NPPES registry on January 20, 2026.

Where is Mercedes Gagnon located?

Mercedes Gagnon practices at PO Box 2, Hamilton, MT 59840. The listed phone number is (269) 615-0439.

What is Mercedes Gagnon'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 Mercedes Gagnon was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.