Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Colleen L Nielsen, OTR/L

Occupational Therapist in Clinton, IA · enumerated 2010 · practices at Clinton Physical Therapy Services, P.C..

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

National Provider Identifier

1063732527

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Registry record

Entity type Individual (Type 1)

Name Colleen L Nielsen

Credential OTR/L

Sex Female

Practice address 240 N Bluff Blvd Ste 101, Clinton, IA, 52732

Phone (563) 242-4422

Fax (563) 243-8329

Enumeration date Jun 8, 2010

Last updated in NPPES Mar 13, 2015

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 00544 (IA) Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 056002724 (IL) Primary

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 Colleen Nielsen?

Colleen Nielsen 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.

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Clinton Physical Therapy Services, P.C. Physical Therapist · Clinton, IA NPI 1548271612

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-13.