Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Frances Lynn Cook, ARNP-C

Q: What is the NPI number for Frances Cook?

The National Provider Identifier (NPI) for Frances Cook is 1427335306, a Type 1 (individual) record in the CMS NPPES registry.

Adult Health Nurse Practitioner in Poplar, MT · enumerated 2011.

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

National Provider Identifier

1427335306

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Registry record

Entity type Individual (Type 1)

Name Frances Lynn Cook

Credential ARNP-C

Sex Female

Practice address 107 H St, Poplar, MT, 59255

Phone (406) 768-7420

Fax (406) 653-1570

Enumeration date Nov 7, 2011

Last updated in NPPES Oct 29, 2025

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 9212536 (FL) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NUR-APRN-LIC-102846 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Frances Cook?

The National Provider Identifier (NPI) for Frances Cook is 1427335306, a Type 1 (individual) record in the CMS NPPES registry.

Where does Frances Cook practice?

The practice location on file with NPPES is in Poplar, MT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-29.