Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Louis Hammerman, MD

Internal Medicine Physician in Boonton, NJ · enumerated 2005.

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

National Provider Identifier

1194724310

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Registry record

Entity type Individual (Type 1)

Name Dr. Louis Hammerman

Credential MD

Sex Male

Practice address 360 Hawkins Pl, Boonton, NJ, 07005

Phone (973) 334-3006

Fax (973) 402-9778

Enumeration date Jul 19, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 25MA03896400 (NJ) Primary

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

Other identifiers

Identifier	Type	State	Issuer
78371	Other	-	USHC
1952901	Medicaid	NJ	-
412270M	Other	NJ	CIGNA

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

How do I verify Louis Hammerman's NPI record?

Cross-check NPI 1194724310 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1194724310 active?

Yes, as of the latest NPPES snapshot, NPI 1194724310 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.