Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Elizabeth Nissim, PHD
Psychologist in Livingston, NJ · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700362464
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Registry record
Entity type Individual (Type 1)
Name Elizabeth Nissim
Credential PHD
Sex Female
Practice address 513 W Mount Pleasant Ave Ste 212&322, Livingston, NJ, 07039
Phone (973) 309-3262
Fax (973) 200-2580
Enumeration date Jul 16, 2018
Last updated in NPPES Oct 5, 2026
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License 35S100427300 (NJ) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD 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 Elizabeth Nissim?
Elizabeth Nissim is registered in NPPES with the primary taxonomy of Psychologist. 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-05.