Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Joseph S Harhay, MD

Orthopaedic Surgery Physician in Northfield, NJ · enumerated 2006.

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

National Provider Identifier

1508972183

Verified

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Registry record

Entity type Individual (Type 1)

Name Joseph S Harhay

Credential MD

Sex Male

Practice address Northfield, NJ, 08225

Phone (609) 645-1500

Fax (609) 484-9122

Enumeration date Aug 23, 2006

Last updated in NPPES Sep 25, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MA39913 (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

Where does Joseph Harhay practice?

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

What is the NPI number for Joseph Harhay?

The National Provider Identifier (NPI) for Joseph Harhay is 1508972183, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-25.