Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Kelly M Gustavson-Mattek, PSY.D.
Psychologist in Elkhorn, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1750471314
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Registry record
Entity type Individual (Type 1)
Name Dr. Kelly M Gustavson-Mattek
Credential PSY.D.
Sex Female
Practice address 1910 County Road Nn, Elkhorn, WI, 53121
Phone (262) 741-3200
Fax (262) 741-3217
Enumeration date Oct 13, 2006
Last updated in NPPES May 5, 2025
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License 2533-057 (WI) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 40938700 | Medicaid | WI | - |
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
What specialty is Kelly Gustavson-Mattek?
Kelly Gustavson-Mattek is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Nicole Heinrich Clinical Social Worker · Elkhorn, WI NPI 1447281779 Elaine Sorem Psychiatry Physician · Elkhorn, WI NPI 1629167085 County of Walworth State or Local Public Health Clinic/Center · Elkhorn, WI NPI 1548348311 County of Walworth Case Management Agency · Elkhorn, WI NPI 1205914967 County of Walworth Case Management Agency · Elkhorn, WI NPI 1932287612 County of Walworth Mental Health Clinic/Center (Including Community Mental Health Center) · Elkhorn, WI NPI 1588733307 County of Walworth Community/Behavioral Health Agency · Elkhorn, WI NPI 1942364724 Anna Nusbaum Psychiatry Physician · Elkhorn, WI NPI 1396896445
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-05.