Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chelsea Fritz, LCSW, SAC

Mental Health Counselor in Oshkosh, WI · enumerated 2018.

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

National Provider Identifier

1326533357

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Registry record

Entity type Individual (Type 1)

Name Chelsea Fritz

Credential LCSW, SAC

Sex Female

Practice address 220 Washington Ave, Oshkosh, WI, 54901

Phone (920) 236-4700

Fax (920) 236-1157

Enumeration date Jun 22, 2018

Last updated in NPPES Oct 24, 2023

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 16444-131 (WI) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 9791-123 (WI) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 131118-121 (WI) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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

Where does Chelsea Fritz practice?

The practice location on file with NPPES is in Oshkosh, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Chelsea Fritz?

The National Provider Identifier (NPI) for Chelsea Fritz is 1326533357, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Kenneth Casimir Psychiatry Physician · Oshkosh, WI NPI 1124046818 Michael Vicente Psychiatry Physician · Oshkosh, WI NPI 1669486619 County of Winnebago Mental Health Clinic/Center (Including Community Mental Health Center) · Oshkosh, WI NPI 1508960675 Louis Topel Psychologist · Oshkosh, WI NPI 1316036668 Douglas Brey Professional Counselor · Oshkosh, WI NPI 1093886723 Michael Daehn Clinical Psychologist · Oshkosh, WI NPI 1417015025 David Zerrien Psychiatry Physician · Oshkosh, WI NPI 1780742262 George Benz Mental Health Counselor · Oshkosh, WI NPI 1912067026

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-24.