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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Kenneth Ewing, MD

Medical Specialty Clinic/Center in Port Washington, NY · enumerated 2007 · authorized official Donna Humphreys, Office Manager.

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

National Provider Identifier

1205052610

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Registry record

Entity type Organization (Type 2)
Legal business name Kenneth Ewing, MD
Practice address 458 Main St, Port Washington, NY, 11050
Phone (516) 883-7677
Enumeration date Apr 17, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QM2500X Medical Specialty Clinic/Center Ambulatory Health Care Facilities · License 109869 (NY) Primary

Authorized official

Name Donna Humphreys
Title Office Manager
Phone (516) 883-7677

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Kenneth Ewing, MD?
Kenneth Ewing, MD is registered in NPPES as a Medical Specialty Clinic/Center (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.