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

Bridget O'Sullivan, PA-C

Medical Physician Assistant in Southampton, NY · enumerated 2022.

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

National Provider Identifier

1831841519

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Registry record

Entity type Individual (Type 1)

Name Bridget O'Sullivan

Credential PA-C

Sex Female

Practice address Southampton, NY, 11968

Phone (631) 638-7400

Enumeration date Jan 24, 2022

Last updated in NPPES Oct 30, 2024

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

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Bridget O'Sullivan practice?

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

What is the NPI number for Bridget O'Sullivan?

The National Provider Identifier (NPI) for Bridget O'Sullivan is 1831841519, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Jo Anne Maynard Nurse Practitioner · Southampton, NY NPI 1730105792

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-30.