Individual provider Active NPI

Allison Izsak, MD

  • Hospitalist Physician
  • Newark, NJ
National Provider Identifier
1770225583
Registry record updated Jul 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
25MA12577000 Issued in NJ
Practice address
150 Bergen St
Newark, NJ 07103-2496
Phone
(973) 972-6056
NPI assigned
Apr 12, 2022
Last updated
Jul 16, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 16, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X 25MA12577000 NJ Primary

Addresses

Primary practice location

150 Bergen St
Newark, NJ 07103-2496

Mailing address

150 Bergen St
Newark, NJ 07103-2496

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251208003873 NJ Practitioner - Internal Medicine 1658865696 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Albert Einstein College of Medicine of Yeshiva University, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

140 Bergen St
Newark, NJ 07103-2425
Phone (973) 972-9000

90 Bergen St
Newark, NJ 07103-2425
Phone (973) 972-5004

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
25MA12577000NJMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University Physician Associates of New Jersey Inc CurrentSince Nov 1, 2025 Accepting new patients
University Hospital Past Accepting new patients

Locations

150 Bergen St
Newark, NJ 07103
Phone (973) 972-6056

90 Bergen St
Newark, NJ 07103
Phone (973) 972-0037

Organizations & group practices 2

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

Hospital & facility affiliations 1

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": "1649721600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752624000000",
    "number": "1770225583",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "150 BERGEN ST",
            "city": "NEWARK",
            "state": "NJ",
            "postal_code": "071032496"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "150 BERGEN ST",
            "city": "NEWARK",
            "state": "NJ",
            "postal_code": "071032496",
            "telephone_number": "973-972-6056"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "IZSAK",
        "first_name": "ALLISON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-04-12",
        "last_updated": "2025-07-16",
        "certification_date": "2025-07-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NJ",
            "license": "25MA12577000",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Newark, NJ

Sources for this page

Verify at the official NPI Registry.