NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Tammy Dawn Ness, LICSW

Clinical Social Worker in Minot, ND · enumerated 2006 · practices at Nancy Mickelson.

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

National Provider Identifier

1558458265

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Registry record

Entity type Individual (Type 1)
Name Mrs. Tammy Dawn Ness
Credential LICSW
Sex Female
Practice address Minot, ND, 58701
Phone (701) 720-8876
Enumeration date Oct 6, 2006
Last updated in NPPES Sep 1, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1712 (ND) Primary

Other identifiers

Identifier Type State Issuer
028715 Other ND BLUE CROSS BLUE SHIELD
19192 Medicaid ND -

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.

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Frequently asked questions

Is NPI 1558458265 active?
Yes, as of the latest NPPES snapshot, NPI 1558458265 is active (record last updated 2021-09-01).
How do I verify Tammy Ness's NPI record?
Cross-check NPI 1558458265 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 2021-09-01.