Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deirdre Catherine Sullivan

Radiology Practitioner Assistant in New York, NY · enumerated 2018.

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

National Provider Identifier

1285124198

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Registry record

Entity type Individual (Type 1)

Name Deirdre Catherine Sullivan

Sex Female

Practice address 525 E 68th St, New York, NY, 10065

Phone (516) 732-1088

Enumeration date May 16, 2018

Last updated in NPPES May 16, 2018

Taxonomy & licenses

2471C3401X Computed Tomography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Secondary

2471C3402X Radiography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Secondary

243U00000X Radiology Practitioner Assistant Technologists, Technicians & Other Technical Service 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

What is the NPI number for Deirdre Sullivan?

The National Provider Identifier (NPI) for Deirdre Sullivan is 1285124198, a Type 1 (individual) record in the CMS NPPES registry.

Where does Deirdre Sullivan practice?

The practice location on file with NPPES is in New York, NY. 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 2018-05-16.