Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katharine S. Dempsey, M.D.

Ophthalmic Plastic and Reconstructive Surgery Physician in Great Neck, NY · enumerated 2016.

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

National Provider Identifier

1831543834

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Registry record

Entity type Individual (Type 1)

Name Katharine S. Dempsey

Credential M.D.

Sex Female

Practice address 600 Northern Blvd Ste 214, Great Neck, NY, 11021

Phone (516) 470-2020

Enumeration date Apr 16, 2016

Last updated in NPPES Jul 13, 2022

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 61161 (TN) Secondary

207WX0200X Ophthalmic Plastic and Reconstructive Surgery Physician Allopathic & Osteopathic Physicians · License 61161 (TN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 Katharine Dempsey?

The National Provider Identifier (NPI) for Katharine Dempsey is 1831543834, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katharine Dempsey practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-13.