Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mack Lee Sullivan MD Ms Urgent Medical Care of Eastchester, Pllc

Urgent Care Clinic/Center in Eastchester, NY · enumerated 2013 · authorized official Mack Lee Sullivan, Director of Operations.

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

National Provider Identifier

1558799395

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Registry record

Entity type Organization (Type 2)

Legal business name Mack Lee Sullivan MD Ms Urgent Medical Care of Eastchester, Pllc

Other name <Unavail>

Practice address 369 White Plains Rd, Eastchester, NY, 10709

Phone (914) 337-8743

Fax (914) 337-8748

Enumeration date Oct 14, 2013

Last updated in NPPES Jun 30, 2016

Taxonomy & classification

261QU0200X Urgent Care Clinic/Center Ambulatory Health Care Facilities · License 190101-1 (NY) Primary

Authorized official

Name Mack Lee Sullivan

Title Director of Operations

Phone (914) 395-3691

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-06-30. Verify at npiregistry.cms.hhs.gov.

Where is Mack Lee Sullivan MD Ms Urgent Medical Care of Eastchester, Pllc located?

The practice location on file with NPPES is in Eastchester, NY.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-30.