Jon E. Hershkowitz, MD

Internal Medicine Physician · Summit, NJ

Individual Active NPI

NPI number 1811985203

Practice location

120 Summit Ave
Summit Medical Group
Summit, NJ 07901-2804
Phone
(908) 277-8880
Fax
(908) 277-8779

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NPI record

NPI
1811985203
Entity type
Individual (Type 1)
Enumeration date
October 10, 2005
Last updated
July 13, 2026
Sole proprietor
No

Specialties & taxonomy codes

TaxonomyCodeLicenseState
Internal Medicine Physician Primary 207R00000X MA69995 NJ
Hospitalist Physician 208M00000X MA69995 NJ

About Dr. Hershkowitz

Jon E. Hershkowitz, MD is a healthcare provider registered in the NPI registry with the primary taxonomy Internal Medicine Physician (code 207R00000X). The practice location is 120 Summit Ave, Summit Medical Group, Summit, NJ 07901-2804. The NPI number 1811985203 was assigned on October 10, 2005 and the record was last updated on July 13, 2026.

Dr. Hershkowitz lists 2 licenses in the registry: #MA69995 (NJ) for Internal Medicine Physician; #MA69995 (NJ) for Hospitalist Physician. License numbers are self-reported to NPPES; verify them with the state licensing board.

Frequently asked questions

What is the NPI number of Jon E. Hershkowitz, MD?

The NPI number is 1811985203.

What is the phone number of Dr. Hershkowitz?

The phone number listed for the practice location is (908) 277-8880.

Where is Dr. Hershkowitz located?

120 Summit Ave, Summit Medical Group, Summit, NJ 07901-2804.

What is the taxonomy code for Dr. Hershkowitz?

The primary taxonomy code is 207R00000X – Internal Medicine Physician; 1 more listed above.

Is this information correct?

All details come from the public NPPES registry. Providers can update their record at nppes.cms.hhs.gov; changes appear here after the next weekly update.

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