Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William D Nunn II

Q: What is the NPI number for William Nunn?

The National Provider Identifier (NPI) for William Nunn is 1134860786, a Type 1 (individual) record in the CMS NPPES registry.

Pediatrics Physician in Lake Grove, NY · enumerated 2022 · practices at Luxottica of America Inc.

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

National Provider Identifier

1134860786

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Registry record

Entity type Individual (Type 1)

Name William D Nunn II

Sex Male

Practice address 4 Smith Haven Mall, Lake Grove, NY, 11755

Phone (631) 444-7337

Fax (631) 444-2894

Enumeration date Apr 6, 2022

Last updated in NPPES Jul 30, 2025

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 336386 (NY) 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 William Nunn?

The National Provider Identifier (NPI) for William Nunn is 1134860786, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Nunn practice?

The practice location on file with NPPES is in Lake Grove, 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 2025-07-30.