NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grant Pearson Duncan, PT, DPT

Physical Therapist in South Pasadena, CA · enumerated 2025.

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

National Provider Identifier

1982589909

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Grant Pearson Duncan
Credential PT, DPT
Sex Male
Practice address 625 Fair Oaks Ave Ste 255, South Pasadena, CA, 91030
Phone (626) 737-6735
Enumeration date Aug 8, 2025
Last updated in NPPES Aug 8, 2025

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 308475 (CA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT 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 Grant Duncan practice?
The practice location on file with NPPES is in South Pasadena, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Grant Duncan?
The National Provider Identifier (NPI) for Grant Duncan is 1982589909, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-08.