Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Patricia A O'Neill, M.S.,CCC-A

Audiologist in West Haven, CT · enumerated 2006.

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

National Provider Identifier

1821036963

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Registry record

Entity type Individual (Type 1)

Name Ms. Patricia A O'Neill

Credential M.S.,CCC-A

Sex Female

Practice address 950 Campbell Ave, Audio/126, West Haven, CT, 06516

Phone (203) 932-5711

Fax (203) 937-3872

Enumeration date Jun 2, 2006

Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 000379 (CT) 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.

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Frequently asked questions

Where does Patricia O'Neill practice?

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

What is the NPI number for Patricia O'Neill?

The National Provider Identifier (NPI) for Patricia O'Neill is 1821036963, a Type 1 (individual) record in the CMS NPPES registry.

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