NPIMap

Individual provider Active NPI

Jonah Zaretsky

  • Hospitalist Physician
  • Bronx, NY
National Provider Identifier
1154708329
Registry record updated Oct 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
293444 Issued in NY
Practice address
111 E 210TH St
Bronx, NY 10467
Phone
(718) 920-4321
NPI assigned
Apr 27, 2015
Last updated
Oct 24, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 24, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207R00000X 293444 NY
Hospitalist Physician 208M00000X 293444 NY Primary

Addresses

Primary practice location

111 E 210TH St
Bronx, NY 10467

Mailing address

111 E 210TH St
Bronx, NY 10467-2401
Phone (718) 920-4321

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
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
I20180529001359 NY Practitioner - Hospitalist 4880959691 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Albert Einstein College of Medicine of Yeshiva University, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New York UniversityGroup PAC ID 1355232422, 5,925 clinicians

Practice addresses (Care Compare)

550 1St Ave
New York, NY 10016-6402
Phone (212) 263-7300

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.8 of 100Reported as group
Quality
91.79
Promoting interoperability
100
Improvement activities
40
Cost
75.18

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
293444NYMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
New York University Single Specialty CurrentSince Jul 1, 2018 Accepting new patients
New York University Internal Medicine CurrentSince Jul 1, 2018 Accepting new patients
NYU Langone Hospitals Past Accepting new patients

Locations

111 E 210th St
Bronx, NY 10467

550 1st Ave
New York, NY 10016
Phone (212) 263-3293

14 Wall St
Fl 9
Wall Street, NY 10005
Phone (646) 501-3224

Networks

  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H3359

Interoperability endpoints

  • Direct secure messaging: jzaretsky260834@nyumc.direct-ci.com

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 8

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": "1430092800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1154708329",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "111 E 210TH ST",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "104672401",
            "telephone_number": "718-920-4321"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "111 E 210TH ST",
            "city": "BRONX",
            "state": "NY",
            "postal_code": "10467",
            "telephone_number": "718-920-4321"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZARETSKY",
        "first_name": "JONAH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-04-27",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "293444",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NY",
            "license": "293444",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bronx, NY

Sources for this page

Verify at the official NPI Registry.