Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Weithorn, MD

Surgery Physician in West Orange, NJ · enumerated 2015.

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

National Provider Identifier

1033504303

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Registry record

Entity type Individual (Type 1)

Name Dr. David Weithorn

Credential MD

Sex Male

Practice address 101 Old Short Hills Rd Ste 206, West Orange, NJ, 07052

Phone (973) 731-5005

Fax (973) 325-6230

Enumeration date Apr 2, 2015

Last updated in NPPES Mar 3, 2022

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25MA10698500 (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
25MA10698500	Other	NJ	LICENSE

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 David Weithorn practice?

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

What is the NPI number for David Weithorn?

The National Provider Identifier (NPI) for David Weithorn is 1033504303, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-03.