Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Katherine Nissen, LCSW
Clinical Social Worker in Ronan, MT · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1760735682
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Registry record
Entity type Individual (Type 1)
Name Mary Katherine Nissen
Credential LCSW
Sex Female
Practice address 407 Main St Sw, Ronan, MT, 59864
Phone (406) 210-8831
Enumeration date Oct 16, 2012
Last updated in NPPES Dec 1, 2023
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 189560 (AK) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 66438 (MT) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| MH0150 | Medicaid | AK | - |
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.
Frequently asked questions
How do I verify Mary Nissen's NPI record?
Cross-check NPI 1760735682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1760735682 active?
Yes, as of the latest NPPES snapshot, NPI 1760735682 is active (record last updated 2023-12-01).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-01.