Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregg E. Zimmerman, MD

Urology Physician in Denville, NJ · enumerated 2005.

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

National Provider Identifier

1790766228

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Registry record

Entity type Individual (Type 1)

Name Gregg E. Zimmerman

Credential MD

Sex Male

Practice address 16 Pocono Rd, Suite 205, Denville, NJ, 07834

Phone (973) 627-0060

Fax (973) 627-6821

Enumeration date Nov 10, 2005

Last updated in NPPES Jun 18, 2010

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 25MA08076700 (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 is the NPI number for Gregg Zimmerman?

The National Provider Identifier (NPI) for Gregg Zimmerman is 1790766228, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregg Zimmerman practice?

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

Other providers at this practice address

Browse all →

John Ho Family Medicine Physician · Denville, NJ NPI 1518963933 Robert Nemerofsky Plastic Surgery Physician · Denville, NJ NPI 1629061908 Paul Lam Specialist · Denville, NJ NPI 1609861186 Dean Licopantis Podiatrist · Denville, NJ NPI 1760478010 Edward Barbarito Specialist · Denville, NJ NPI 1174503148 Vincent Emiliani Specialist · Denville, NJ NPI 1487634457 John Soriano Gastroenterology Physician · Denville, NJ NPI 1861472292 Michael Gironta Internal Medicine Physician · Denville, NJ NPI 1013985928

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-18.