Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mountains and Waves Mental Health Pllc

Adult Mental Health Clinic/Center in Missoula, MT · enumerated 2025 · authorized official Mark Mcgrath, Owner/Provider.

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

National Provider Identifier

1871472167

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Registry record

Entity type Organization (Type 2)

Legal business name Mountains and Waves Mental Health Pllc

Practice address 125 Bank St Ste 310, Missoula, MT, 59802

Phone (406) 498-4387

Fax (949) 864-3694

Enumeration date Aug 29, 2025

Last updated in NPPES Aug 29, 2025

Taxonomy & classification

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Mark Mcgrath

Title Owner/Provider

Phone (406) 498-4387

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-08-29. Verify at npiregistry.cms.hhs.gov.

Where is Mountains and Waves Mental Health Pllc located?

The practice location on file with NPPES is in Missoula, MT.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-29.