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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William E Mccormick, MD, PC

Neurological Surgery Physician in West Islip, NY · enumerated 2007 · authorized official William Mccormick, President.

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

National Provider Identifier

1053468405

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Registry record

Entity type Organization (Type 2)
Legal business name William E Mccormick, MD, PC
Practice address 380 Montauk Hwy, West Islip, NY, 11795
Phone (631) 422-5371
Enumeration date Jan 5, 2007
Last updated in NPPES Jan 20, 2022

Taxonomy & classification

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name William Mccormick
Title President
Phone (631) 422-5371

Other identifiers

Identifier Type State Issuer
DC9279 Other NY MEDICARE RR
WES021 Other NY PTAN

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

Who is the authorized official for William E Mccormick, MD, PC?
NPPES lists William Mccormick (President) as the authorized official for this organization.
What is the NPI number for William E Mccormick, MD, PC?
The NPI for William E Mccormick, MD, PC is 1053468405, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-20.