Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark S. Powell, OT

Q: What is the NPI number for Mark Powell?

The National Provider Identifier (NPI) for Mark Powell is 1437470861, a Type 1 (individual) record in the CMS NPPES registry.

Occupational Therapist in Galesburg, IL · enumerated 2010.

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

National Provider Identifier

1437470861

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Registry record

Entity type Individual (Type 1)

Name Mark S. Powell

Credential OT

Sex Male

Practice address 872 W Dayton St, Galesburg, IL, 61401

Phone (309) 344-3400

Fax (309) 344-5040

Enumeration date Jun 21, 2010

Last updated in NPPES Jun 21, 2010

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT 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 Powell practice?

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

What is the NPI number for Mark Powell?

The National Provider Identifier (NPI) for Mark Powell is 1437470861, 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 2010-06-21.