Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Deruiter, PH.D.

Audiologist in Minneapolis, MN · enumerated 2007 · practices at Regents of the University of Minnesota.

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

National Provider Identifier

1447458831

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Deruiter

Credential PH.D.

Sex Male

Practice address 164 Pillsbury Dr Se, 115 Shevlin Hall, Minneapolis, MN, 55455

Phone (612) 624-5755

Fax (612) 624-7586

Enumeration date Jul 6, 2007

Last updated in NPPES Sep 6, 2007

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 5987 (MN) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mark Deruiter practice?

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

What is the NPI number for Mark Deruiter?

The National Provider Identifier (NPI) for Mark Deruiter is 1447458831, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-06.