Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. William J. Baldizzone
Optician in Brooklyn, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1841268422
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Registry record
Entity type Individual (Type 1)
Name Mr. William J. Baldizzone
Sex Male
Practice address 2142 86th St, Brooklyn, NY, 11214
Phone (718) 372-5144
Fax (718) 373-0684
Enumeration date Mar 9, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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.
Frequently asked questions
What specialty is William Baldizzone?
William Baldizzone is registered in NPPES with the primary taxonomy of Optician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.