Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Deanna Lynn O'Neil, DDS

Pediatric Dentistry in South Bend, IN · enumerated 2006.

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

National Provider Identifier

1508972837

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Registry record

Entity type Individual (Type 1)

Name Dr. Deanna Lynn O'Neil

Credential DDS

Sex Female

Practice address 103 S Eddy St, South Bend, IN, 46617

Phone (574) 288-4400

Fax (574) 288-5437

Enumeration date Aug 21, 2006

Last updated in NPPES Jan 29, 2013

Taxonomy & licenses

1223P0221X Pediatric Dentistry Dental Providers · License 5026015 (WI) Secondary

1223P0221X Pediatric Dentistry Dental Providers · License 12011222A (IN) 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

Where does Deanna O'Neil practice?

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

What is the NPI number for Deanna O'Neil?

The National Provider Identifier (NPI) for Deanna O'Neil is 1508972837, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-29.