Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jonathan D Day, CPO

Q: What is the NPI number for Jonathan Day?

The National Provider Identifier (NPI) for Jonathan Day is 1609845783, a Type 1 (individual) record in the CMS NPPES registry.

Prosthetist in Oklahoma City, OK · enumerated 2006.

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

National Provider Identifier

1609845783

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Registry record

Entity type Individual (Type 1)

Name Jonathan D Day

Credential CPO

Sex Male

Practice address 1122 Ne 13th St, Ori Wb501, Oklahoma City, OK, 73117

Phone (405) 271-3644

Enumeration date Mar 14, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

224P00000X Prosthetist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 20 (OK) Primary

225000000X Orthotic Fitter Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 20 (OK) Secondary

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 Jonathan Day practice?

The practice location on file with NPPES is in Oklahoma City, OK. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jonathan Day?

The National Provider Identifier (NPI) for Jonathan Day is 1609845783, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.