Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy Darcy D Olson, OTR

Occupational Therapist in Detroit Lakes, MN · enumerated 2006.

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

National Provider Identifier

1083655278

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Registry record

Entity type Individual (Type 1)

Name Nancy Darcy D Olson

Credential OTR

Sex Female

Practice address 125 Frazee St E, Detroit Lakes, MN, 56501

Phone (218) 844-2300

Fax (218) 844-2444

Enumeration date Jun 9, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 102115 (MN) Primary

Other identifiers

Identifier	Type	State	Issuer
DA9031015523	Other	MN	PREFERRED ONE #
17855	Other	MN	NDBS #
65D02OL	Other	ND	MNBS #
39A42OL	Other	ND	MNBS #
6401687	Other	FM	MEDICA #
6401691	Other	MN	MEDICA #
65D03OL	Other	MN	MNBS #
65D04OL	Other	MN	MNBS #
974269	Other	MN	AMERICA'S PPO/ARAZ #
51457	Medicaid	MN	-
6401688	Other	ND	MEDICA #
6401690	Other	ND	MEDICA #

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

What specialty is Nancy Darcy Olson?

Nancy Darcy Olson is registered in NPPES with the primary taxonomy of Occupational Therapist. 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.

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