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John D. Siegal MD

Urology Physician in Millburn, NJ · enumerated 2006 · authorized official John Siegal, MD.

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

National Provider Identifier

1922040641

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Registry record

Entity type Organization (Type 2)
Legal business name John D. Siegal MD
Practice address 233 Millburn Ave, Millburn, NJ, 07041
Phone (973) 467-2361
Enumeration date Jun 10, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MA48837 (NJ) Primary

Authorized official

Name John Siegal
Title MD
Phone (973) 467-2361

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.
Where is John D. Siegal MD located?
The practice location on file with NPPES is in Millburn, NJ.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.