Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Duane G Ollendick, PHD, LP

Psychologist in Rochester, MN · enumerated 2006.

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

National Provider Identifier

1245292689

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Registry record

Entity type Individual (Type 1)

Name Duane G Ollendick

Credential PHD, LP

Sex Male

Practice address 210 9th St Se, Rochester, MN, 55904

Phone (507) 288-3443

Enumeration date Apr 3, 2006

Last updated in NPPES Apr 11, 2017

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License LP0601 (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.

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Frequently asked questions

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.

What specialty is Duane Ollendick?

Duane Ollendick 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-11.