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Dr. Joseph Lawrence O'Connor, DDS

Dentist in Fountain Valley, CA · enumerated 2006 · practices at Joseph O'Connor DDS & Claudia O'Connor DDS,Inc.

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

National Provider Identifier

1326147000

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Registry record

Entity type Individual (Type 1)
Name Dr. Joseph Lawrence O'Connor
Credential DDS
Sex Male
Practice address 11059 Warner Ave, Fountain Valley, CA, 92708
Phone (714) 418-1974
Fax (714) 418-1969
Enumeration date Sep 21, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License D43381 (CA) 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.

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Frequently asked questions

What is the NPI number for Joseph O'Connor?
The National Provider Identifier (NPI) for Joseph O'Connor is 1326147000, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joseph O'Connor practice?
The practice location on file with NPPES is in Fountain Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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