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Dr. Aaron Grusonik

Clinical Psychologist in Fort Harrison, MT · enumerated 2025.

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

National Provider Identifier

1326908526

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Registry record

Entity type Individual (Type 1)
Name Dr. Aaron Grusonik
Sex Male
Practice address 3687 Veterans Dr, Fort Harrison, MT, 59636
Phone (408) 482-0323
Enumeration date Nov 12, 2025
Last updated in NPPES Nov 12, 2025

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY-PSY-LIC-5876 (MT) Primary

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 do I verify Aaron Grusonik's NPI record?
Cross-check NPI 1326908526 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326908526 active?
Yes, as of the latest NPPES snapshot, NPI 1326908526 is active (record last updated 2025-11-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-12.