Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William C. Herdman, O.D.
Optometrist in Landing, NJ · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225289812
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Registry record
Entity type Individual (Type 1)
Name Dr. William C. Herdman
Credential O.D.
Sex Male
Practice address 150 Lakeside Blvd, Suite 4, Landing, NJ, 07850
Phone (973) 770-9400
Enumeration date Oct 1, 2008
Last updated in NPPES Oct 1, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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 Herdman?
William Herdman is registered in NPPES with the primary taxonomy of Optometrist. 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 → Christopher Damico Family Medicine Physician · Landing, NJ NPI 1386611218 Joseph Purcell Family Medicine Physician · Landing, NJ NPI 1083676910 Shefali Shah Family Medicine Physician · Landing, NJ NPI 1578525432 Joseph Maugeri Gynecology Physician · Landing, NJ NPI 1174578017 Salvatore Defilippo Family Medicine Physician · Landing, NJ NPI 1841787348
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-01.