NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane S Ferguson, PT

Physical Therapist in Youngstown, OH · enumerated 2008.

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

National Provider Identifier

1598911927

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Diane S Ferguson
Credential PT
Sex Female
Practice address 7645 Market St Ste 110, Youngstown, OH, 44512
Enumeration date Aug 18, 2008
Last updated in NPPES Oct 2, 2024

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT004580 (OH) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier Type State Issuer
PT4580 Other OH PT LICENSE
PA002313E Other PA PA PT LICENSE

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 Diane Ferguson practice?
The practice location on file with NPPES is in Youngstown, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diane Ferguson?
The National Provider Identifier (NPI) for Diane Ferguson is 1598911927, 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 2024-10-02.