NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregg Klein, MD

Orthopaedic Surgery Physician in Paramus, NJ · enumerated 2005.

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

National Provider Identifier

1528053642

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Gregg Klein
Credential MD
Sex Male
Practice address 650 From Rd, Paramus, NJ, 07652
Fax (201) 972-8980
Enumeration date Sep 14, 2005
Last updated in NPPES Apr 21, 2023

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 25MA07802700 (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 Klein?
The National Provider Identifier (NPI) for Gregg Klein is 1528053642, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregg Klein practice?
The practice location on file with NPPES is in Paramus, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-21.