Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Greg S. Macknight, PTA

Physical Therapy Assistant in Portland, OR · enumerated 2007.

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

National Provider Identifier

1083800981

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Registry record

Entity type Individual (Type 1)

Name Greg S. Macknight

Credential PTA

Sex Male

Practice address 4016 Ne Fremont St, Portland, OR, 97212

Phone (971) 678-7422

Enumeration date Sep 24, 2007

Last updated in NPPES Jun 10, 2015

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 8473 (OR) 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

Where does Greg Macknight practice?

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

What is the NPI number for Greg Macknight?

The National Provider Identifier (NPI) for Greg Macknight is 1083800981, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-10.