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

DENNIS LEE DUFFY PEET MSW
NPI 1497717979
Social Worker in Kalispell, MT

Q: What is Dennis Peet's NPI number?

The NPI number for Dennis Peet is 1497717979. It was assigned to this individual provider in the NPPES registry on April 3, 2006. The provider is also known as Duffy Peet Msw.

Q: What is Dennis Peet's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: When was this NPI record last updated?

The NPPES record for Dennis Peet was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 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.

Active since April 03, 2006

40 2ND STREET EAST, SUITE 236, KALISPELL, MT 59901(406) 257-8775 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

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About Dennis Lee Duffy Peet Msw NPPES

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

DENNIS LEE DUFFY PEET MSW (NPI 1497717979) is an individual social worker in Kalispell, Montana, licensed in Montana (18) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1497717979

Entity TypeIndividualMale

Primary Taxonomy104100000X

Provider Legal NameDENNIS LEE DUFFY PEETCredential: MSW

Location Address40 2ND STREET EAST, SUITE 236Kalispell, MT 59901-6114

Mailing Address40 2nd Street East, Suite 236Kalispell, MT 59901-6114 · (406) 257-8775

Phone(406) 257-8775

Sole ProprietorNo

Enumeration DateApril 3, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1497717979 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in MT · 18

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

40 2ND STREET EAST, Kalispell, MT 59901

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Other Names 1

Professional Name (2)Duffy Peet Msw

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 Dennis Peet's NPI number?

The NPI number for Dennis Peet is 1497717979. It was assigned to this individual provider in the NPPES registry on April 3, 2006. The provider is also known as Duffy Peet Msw.

Where is Dennis Peet located?

Dennis Peet practices at 40 2nd Street East Suite 236, Kalispell, MT 59901. The listed phone number is (406) 257-8775.

What is Dennis Peet's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Dennis Peet was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 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.