Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Karrin Wilhelmina Sax, WOMENS HEALTH NURSE

Women's Health Nurse Practitioner in Kalispell, MT · enumerated 2006.

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

National Provider Identifier

1366491961

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Registry record

Entity type Individual (Type 1)

Name Mrs. Karrin Wilhelmina Sax

Credential WOMENS HEALTH NURSE

Sex Female

Practice address 75 Claremont St, Suite A Northwest Womens Health Care, Kalispell, MT, 59901

Phone (406) 752-8282

Fax (406) 257-2225

Enumeration date May 9, 2006

Last updated in NPPES Jan 3, 2008

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN25114 (MT) Primary

363LX0001X Obstetrics & Gynecology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN25114 (MT) Secondary

Other identifiers

Identifier	Type	State	Issuer
4307409	Medicaid	MT	-

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

Is NPI 1366491961 active?

Yes, as of the latest NPPES snapshot, NPI 1366491961 is active (record last updated 2008-01-03).

How do I verify Karrin Sax's NPI record?

Cross-check NPI 1366491961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-03.