NPI Portal NPI Lookup & Verification

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

Dr. Ann Katherine Matzen, PH.D.

Clinical Child & Adolescent Psychologist in Colorado Springs, CO · enumerated 2021.

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

National Provider Identifier

1811574999

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Registry record

Entity type Individual (Type 1)
Name Dr. Ann Katherine Matzen
Credential PH.D.
Sex Female
Practice address Colorado Springs, CO, 80920
Phone (719) 244-7155
Enumeration date Mar 25, 2021
Last updated in NPPES Mar 25, 2021

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

Taxonomy & licenses

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License PSY.0005502 (CO) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

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Frequently asked questions

Where does Ann Matzen practice?
The practice location on file with NPPES is in Colorado Springs, CO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ann Matzen?
The National Provider Identifier (NPI) for Ann Matzen is 1811574999, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-25.