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

Miss Shannon C Hallahan

Specialist in Grand Forks, ND · enumerated 2017.

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

National Provider Identifier

1619403946

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Registry record

Entity type Individual (Type 1)

Name Miss Shannon C Hallahan

Sex Female

Practice address Grand Forks, ND, 58201

Phone (701) 795-3000

Fax (701) 795-3050

Enumeration date May 5, 2017

Last updated in NPPES Jun 30, 2022

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

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers · License 171M00000X (ND) Secondary

174400000X Specialist Other Service Providers 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.

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Frequently asked questions

How do I verify Shannon Hallahan's NPI record?

Cross-check NPI 1619403946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1619403946 active?

Yes, as of the latest NPPES snapshot, NPI 1619403946 is active (record last updated 2022-06-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-30.