NPI Portal NPI Lookup & Verification

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

Mrs. Jessica Lynn Tomsen, LICSW

Clinical Social Worker in Somerset, WI · enumerated 2018.

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

National Provider Identifier

1821506106

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Registry record

Entity type Individual (Type 1)
Name Mrs. Jessica Lynn Tomsen
Credential LICSW
Sex Female
Practice address Somerset, WI, 54025
Phone (651) 900-9540
Fax (651) 340-2909
Enumeration date Jan 20, 2018
Last updated in NPPES Oct 5, 2022

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 LCSW-4282 (HI) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 9425-123 (WI) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 22830 (MN) 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 Jessica Tomsen's NPI record?
Cross-check NPI 1821506106 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1821506106 active?
Yes, as of the latest NPPES snapshot, NPI 1821506106 is active (record last updated 2022-10-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-05.