Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Davis Sr.

Registered Nurse in O Fallon, IL · enumerated 2013.

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

National Provider Identifier

1396174751

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Registry record

Entity type Individual (Type 1)

Name John Davis Sr.

Sex Male

Practice address 339 Kings Ridge Blvd, O Fallon, IL, 62269

Phone (618) 624-2969

Enumeration date Nov 6, 2013

Last updated in NPPES Nov 6, 2013

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 2004009573 (MO) Secondary

163W00000X Registered Nurse Nursing Service Providers · License 041341411 (IL) 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

Is NPI 1396174751 active?

Yes, as of the latest NPPES snapshot, NPI 1396174751 is active (record last updated 2013-11-06).

How do I verify John Davis's NPI record?

Cross-check NPI 1396174751 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-06.