NPIMap

Individual provider Active NPI

Jon E Hershkowitz, MD

  • Internal Medicine Physician
  • Summit, NJ
National Provider Identifier
1811985203
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MA69995 Issued in NJ
Practice address
120 Summit Ave
Summit Medical Group
Summit, NJ 07901-2804
Phone
(908) 277-8880
Fax
(908) 277-8779
NPI assigned
Oct 10, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MA69995 NJ Primary
Hospitalist Physician 208M00000X MA69995 NJ

Addresses

Primary practice location

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

Mailing address

120 Summit Ave
Summit Medical Group
Summit, NJ 07901-2804
Phone (908) 273-4300

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050406000028 NJ Practitioner - Internal Medicine 9638126212 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Hahneman Medical College of the Pacific, 1991
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Barnabas Health Medical Group, PCGroup PAC ID 0648172809, 257 clinicians

Practice addresses (Care Compare)

1691 Route 9
Toms River, NJ 08755-1245
Phone (732) 914-1688

Hospital & facility affiliations

  • Monmouth Medical Center-Southern Campus Hospital, Lakewood, NJ, CCN 310084
  • Community Medical Center Hospital, Toms River, NJ, CCN 310041
  • JFK University Medical Center Hospital, Edison, NJ, CCN 310108
  • Robert Wood Johnson University Hospital Hospital, New Brunswick, NJ, CCN 310038
  • Southern Ocean Medical Center Hospital, Manahawkin, NJ, CCN 310113

Merit-based Incentive Payment System (MIPS)

Final score
98.51 of 100Reported as apm
Quality
84.27
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MA69995NJMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Barnabas Health Medical Group, PC Internal Medicine CurrentSince Sep 29, 2018 Accepting new patients
Hospitalists Emo, LLC Hospitalist Past Accepting new patients
Summit Medical Group PA Past Accepting new patients

Locations

94 Old Short Hills Rd
Livingston, NJ 07039
Phone (973) 322-5400

1691 US Highway 9
Toms River, NJ 08755
Phone (732) 914-1688

266 King George Rd
Warren, NJ 07059
Phone (732) 667-7778

223 Monmouth Rd
West Long Branch, NJ 07764
Phone (732) 229-3838

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 7

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1128902400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1811985203",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "120 SUMMIT AVE",
            "address_2": "SUMMIT MEDICAL GROUP",
            "city": "SUMMIT",
            "state": "NJ",
            "postal_code": "079012804",
            "telephone_number": "908-273-4300",
            "fax_number": "908-790-6524"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "120 SUMMIT AVE",
            "address_2": "SUMMIT MEDICAL GROUP",
            "city": "SUMMIT",
            "state": "NJ",
            "postal_code": "079012804",
            "telephone_number": "908-277-8880",
            "fax_number": "908-277-8779"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HERSHKOWITZ",
        "first_name": "JON",
        "middle_name": "E",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-10",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NJ",
            "license": "MA69995",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NJ",
            "license": "MA69995",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Summit, NJ

Sources for this page

Verify at the official NPI Registry.