Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ellen S Dewolfe Msn P.C.

Q: What type of organization is Ellen S Dewolfe Msn P.C.?

Ellen S Dewolfe Msn P.C. is registered in NPPES as a Psychiatric/Mental Health Clinical Nurse Specialist (its primary provider taxonomy).

Psychiatric/Mental Health Clinical Nurse Specialist in Missoula, MT · enumerated 2006 · authorized official Ellen Dewolfe, Owner.

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

National Provider Identifier

1891801817

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Ellen S Dewolfe Msn P.C.

Practice address 125 Bank St Ste 310, Missoula, MT, 59802

Phone (406) 549-7325

Fax (406) 549-7559

Enumeration date Aug 22, 2006

Last updated in NPPES Oct 10, 2019

Taxonomy & classification

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License RN16128 (MT) Primary

Authorized official

Name Ellen Dewolfe

Title Owner

Phone (065) 497-3254

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 type of organization is Ellen S Dewolfe Msn P.C.?

Ellen S Dewolfe Msn P.C. is registered in NPPES as a Psychiatric/Mental Health Clinical Nurse Specialist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-10.