NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Merrit Psychiatry Pllc

Adult Mental Health Clinic/Center in Great Falls, MT · enumerated 2013 · authorized official Patricia Calkin, Psychiatrist.

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

National Provider Identifier

1528494507

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Merrit Psychiatry Pllc
Practice address 600 Central Ave, Suite 301, Great Falls, MT, 59401
Enumeration date Sep 23, 2013
Last updated in NPPES Sep 23, 2013

Taxonomy & classification

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities · License 10511 (MT) Primary

Authorized official

Name Patricia Calkin
Title Psychiatrist

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for Merrit Psychiatry Pllc?
NPPES lists Patricia Calkin (Psychiatrist) as the authorized official for this organization.
What is the NPI number for Merrit Psychiatry Pllc?
The NPI for Merrit Psychiatry Pllc is 1528494507, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-23.