Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Edgar Gentles Sr., DDS

Q: What is the NPI number for John Gentles?

The National Provider Identifier (NPI) for John Gentles is 1568575090, a Type 1 (individual) record in the CMS NPPES registry.

Dentist in Florissant, MO · enumerated 2006.

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

National Provider Identifier

1568575090

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Registry record

Entity type Individual (Type 1)

Name Dr. John Edgar Gentles Sr.

Credential DDS

Sex Male

Practice address Florissant, MO, 63034

Phone (314) 355-1401

Fax (314) 355-5506

Enumeration date Aug 17, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

122300000X Dentist Dental Providers · License 11728 (MO) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for John Gentles?

The National Provider Identifier (NPI) for John Gentles is 1568575090, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Gentles practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.