Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William B Neusidl, M.D.

Ophthalmology Physician in Phillipsburg, NJ · enumerated 2006.

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

National Provider Identifier

1881637510

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Registry record

Entity type Individual (Type 1)

Name Dr. William B Neusidl

Credential M.D.

Sex Male

Practice address 800 Coventry Dr, Phillipsburg, NJ, 08865

Phone (908) 859-6055

Fax (908) 859-2042

Enumeration date Jun 13, 2006

Last updated in NPPES Jun 3, 2015

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 25MA05614400 (NJ) Primary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD033871E (PA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
6647103	Medicaid	NJ	-
1174936-005	Other	-	CIGNA
01000186100	Other	-	AMERICHOICE
38675	Other	-	AETNA US HEALTHCARE
OXFORD	Other	-	QS026
180023101	Other	NJ	RAILROAD MEDICARE

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 the NPI number for William Neusidl?

The National Provider Identifier (NPI) for William Neusidl is 1881637510, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Neusidl practice?

The practice location on file with NPPES is in Phillipsburg, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Coventry Eye Associates PC Ophthalmology Physician · Phillipsburg, NJ NPI 1942233739 Coventry Optical, P.C. Eyewear Supplier · Phillipsburg, NJ NPI 1518169689 Eye Care of Practice Associates Ophthalmology Physician · Phillipsburg, NJ NPI 1508598095

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-03.