NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dan W Marquardsen, MSLP

Clinical Psychologist in Brainerd, MN · enumerated 2006 · practices at Core Professional Services, P.A..

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

National Provider Identifier

1295749687

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dan W Marquardsen
Credential MSLP
Sex Male
Practice address 617 Oak St, Brainerd, MN, 56401
Enumeration date Jul 28, 2006
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 4659 (MN) Primary

Other identifiers

Identifier Type State Issuer
84G65MA Other MN BCBS

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 Dan Marquardsen practice?
The practice location on file with NPPES is in Brainerd, MN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dan Marquardsen?
The National Provider Identifier (NPI) for Dan Marquardsen is 1295749687, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.