Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory John Mills, DPT

Physical Therapist in South Portland, ME · enumerated 2021.

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

National Provider Identifier

1417521022

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Registry record

Entity type Individual (Type 1)

Name Gregory John Mills

Credential DPT

Sex Male

Practice address 50 Foden Road, South Portland, ME, 04106

Phone (207) 780-8860

Enumeration date May 18, 2021

Last updated in NPPES Apr 16, 2026

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT5953 (ME) Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT 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

How do I verify Gregory Mills's NPI record?

Cross-check NPI 1417521022 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417521022 active?

Yes, as of the latest NPPES snapshot, NPI 1417521022 is active (record last updated 2026-04-16).

Other providers at this practice address

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Jacklyn Wagner Physical Therapist · South Portland, ME NPI 1659745073 Rebecca Cummings Physical Therapist · South Portland, ME NPI 1487460853

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-16.