Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Isacson, PTA

Physical Therapy Assistant in Carol Stream, IL · enumerated 2011.

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

National Provider Identifier

1669740684

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Registry record

Entity type Individual (Type 1)

Name Donald Isacson

Credential PTA

Sex Male

Practice address 145 Park Hill Trl, Carol Stream, IL, 60188

Phone (630) 653-5553

Enumeration date Dec 5, 2011

Last updated in NPPES Dec 5, 2011

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Donald Isacson?

The National Provider Identifier (NPI) for Donald Isacson is 1669740684, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donald Isacson practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-05.