Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory E Ringler, DMD

Oral and Maxillofacial Radiology Dentistry in Jacksonville, FL · enumerated 2005.

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

National Provider Identifier

1821071804

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory E Ringler

Credential DMD

Sex Male

Practice address 2080 Child St Dept 5000, Jacksonville, FL, 32214

Phone (904) 542-9241

Enumeration date Nov 23, 2005

Last updated in NPPES Jul 17, 2025

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 5774-15 (WI) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 019026610 (IL) Secondary

1223X0008X Oral and Maxillofacial Radiology Dentistry Dental Providers · License 5774-15 (WI) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
019026610	Medicaid	IL	-
33812800	Medicaid	WI	-
9178431	Other	IL	DOREL

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 Gregory Ringler?

The National Provider Identifier (NPI) for Gregory Ringler is 1821071804, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregory Ringler practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-17.