Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Ivan Katz, MD

Urology Physician in Livingston, NJ · enumerated 2005.

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

National Provider Identifier

1831195320

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Ivan Katz

Credential MD

Sex Male

Practice address 315 E Northfield Rd, Livingston, NJ, 07039

Phone (973) 436-1070

Enumeration date Jun 21, 2005

Last updated in NPPES Feb 6, 2020

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MA031806 (NJ) Primary

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

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Jeffrey Katz?

Jeffrey Katz is registered in NPPES with the primary taxonomy of Urology Physician. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-06.