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

MOUNTAINS AND WAVES MENTAL HEALTH PLLC
NPI 1871472167
Nurse Practitioner - Psychiatric/Mental Health in Missoula, MT

Active since August 29, 2025
125 BANK ST STE 310, MISSOULA, MT 59802(406) 220-6110(406) 549-7559 Get Directions Write a Review

NPPES record last updated: August 19, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Mountains And Waves Mental Health Pllc NPPES

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

MOUNTAINS AND WAVES MENTAL HEALTH PLLC (NPI 1871472167) is a healthcare organization registered as a psychiatric/mental health in Missoula, Montana and active in the NPI registry since August 2025. The organization lists Mark Mcgrath, Owner/provider, as its authorized official.

NPPES Registry Identity

NPI1871472167
Entity TypeOrganization
Primary Taxonomy363LP0808X
Legal Business NameMOUNTAINS AND WAVES MENTAL HEALTH PLLC
Location Address125 BANK ST STE 310Missoula, MT 59802-4413
Mailing Address125 Bank St Ste 310Missoula, MT 59802-4413 · (406) 220-6110 · Fax (406) 549-7559
Phone(406) 220-6110
Fax(406) 549-7559
Organization SubpartNo
Authorized OfficialMark McgrathOwner/provider · (406) 220-6110
Enumeration DateAugust 29, 2025
Last NPPES UpdateAugust 19, 2026
NPPES CertifiedAugust 19, 2026
✔ NPI 1871472167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
125 BANK ST STE 310, Missoula, MT 59802
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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 SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 9

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

RAURIE BIRCH PSYCHOLOGICAL SERVICES, PLLC
Psychologist
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (773) 398-9962
RYAN TOLLESON KNEE LCSW, PHD
Social Worker (Clinical)
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 549-7325
ELLEN S DEWOLFE MSN PC
Clinical Nurse Specialist (Psychiatric/Mental Health)
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 549-7325
MAGGIE MAYFIELD, LCSW, LLC
Social Worker (Clinical)
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 549-7325
WILLIAM D. PATENAUDE, PHD PC
Clinical Neuropsychologist
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 549-7325
DR. CHRISTIAN ZAL-HERWITZ, PLLC
Clinic/Center (Mental Health (Including Community Mental Health Center))
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 282-4402
THOMAS J. CLUCAS, PHD, P.C.
Psychologist
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 549-7325
ELLEN S DEWOLFE MSN P.C.
Clinical Nurse Specialist (Psychiatric/Mental Health)
125 BANK ST STE 310
MISSOULA, MT 59802
Missoula County (406) 549-7325

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 Mountains And Waves Mental Health PLLC's NPI number?

The NPI number for Mountains And Waves Mental Health PLLC is 1871472167. It was assigned to this organization in the NPPES registry on August 29, 2025.

Where is Mountains And Waves Mental Health PLLC located?

Mountains And Waves Mental Health PLLC is located at 125 Bank St Ste 310, Missoula, MT 59802. The listed phone number is (406) 220-6110.

What is Mountains And Waves Mental Health PLLC's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Mountains And Waves Mental Health PLLC was last updated on August 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.