Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Robert M Klein MD

Allergy Physician in Clifton, NJ · enumerated 2006 · authorized official Robert Klein, Head of Organization.

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

National Provider Identifier

1245306455

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Registry record

Entity type Organization (Type 2)

Legal business name Robert M Klein MD

Other name <Unavail>

Practice address 1005 Clifton Ave, Suite 4, Clifton, NJ, 07013

Phone (973) 773-7400

Fax (973) 779-5224

Enumeration date Nov 28, 2006

Last updated in NPPES Jul 2, 2008

Taxonomy & classification

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians Primary

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License MA33401 (NJ) Secondary

Authorized official

Name Robert Klein

Title Head of Organization

Phone (973) 773-7400

Other identifiers

Identifier	Type	State	Issuer
061685	Other	NJ	MEDICARE GROUP NUMBER

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 2008-07-02. Verify at npiregistry.cms.hhs.gov.

Where is Robert M Klein MD located?

The practice location on file with NPPES is in Clifton, NJ.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-02.