NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Crosby

Certified Respiratory Therapist in Modesto, CA · enumerated 2023.

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

National Provider Identifier

1124895453

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name David Crosby
Sex Male
Practice address 4601 Dale Rd, Modesto, CA, 95356
Enumeration date Dec 6, 2023
Last updated in NPPES Dec 6, 2023

Taxonomy & licenses

227800000X Certified Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 16556 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does David Crosby practice?
The practice location on file with NPPES is in Modesto, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Crosby?
The National Provider Identifier (NPI) for David Crosby is 1124895453, 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 2023-12-06.