Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ryan Matthew Derby, DPT

Physical Therapist in Tonawanda, NY · enumerated 2020 · practices at Jeffrey B. Rockoff,MD,PC.

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

National Provider Identifier

1821602178

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Registry record

Entity type Individual (Type 1)

Name Ryan Matthew Derby

Credential DPT

Sex Male

Practice address 2540 Sheridan Dr, Tonawanda, NY, 14150

Phone (716) 862-0567

Enumeration date Sep 3, 2020

Last updated in NPPES Dec 12, 2024

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1333741 (TX) Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License P20003 (NC) Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 046502 (NY) 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.

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Frequently asked questions

How do I verify Ryan Derby's NPI record?

Cross-check NPI 1821602178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821602178 active?

Yes, as of the latest NPPES snapshot, NPI 1821602178 is active (record last updated 2024-12-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-12.