NPIMap

Individual provider Active NPI

James Jun Yoon, M.D.

  • Medical Oncology Physician
  • New York, NY
National Provider Identifier
1669903548
Registry record updated Aug 1, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
329655 Issued in NY
Practice address
1275 York Ave
New York, NY 10065-6007
Phone
(212) 639-2000
NPI assigned
Mar 23, 2017
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 1, 2024

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 329655 NY
Hematology (Internal Medicine) Physician 207RH0000X 329655 NY
Medical Oncology Physician 207RX0202X 329655 NY Primary

Addresses

Primary practice location

1275 York Ave
New York, NY 10065-6007

Mailing address

1275 York Ave
New York, NY 10065-6007
Phone (212) 639-2000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, NY2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230621000598 MA Practitioner - Internal Medicine 2163792912 Reassigns benefits to 1 organization
I20240909002080 NY Practitioner - Hematology/OncologyPractitioner - Internal Medicine 2163792912 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Internal Medicine
Education
Icahn School of Medicine at Mount Sinai, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1275 York Ave
New York, NY 10065-6007
Phone (212) 639-2000

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
329655NYMDHematology (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mskcc Clinical Practice Plan Internal Medicine CurrentSince Aug 1, 2024 Accepting new patients
Mskcc Clinical Practice Plan CurrentSince Aug 1, 2024 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc CurrentSince Jul 1, 2023 Accepting new patients
Memorial Hematology Lymphoma Group Medical Oncology CurrentSince Aug 1, 2024 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc Internal Medicine CurrentSince Jul 1, 2023 Accepting new patients
Memorial Hematology Lymphoma Group Hematology Current Accepting new patients
Memorial Hospital for Cancer and Allied Diseases Past Accepting new patients

Locations

330 Brookline Ave
#132
Boston, MA 02215
Phone (617) 667-9920

330 Brookline Ave
Boston, MA 02215
Phone (617) 667-2000

633 3rd Ave
Fl 4
New York, NY 10017
Phone (646) 227-3764

1275 York Ave
New York, NY 10065
Phone (212) 639-3813

Networks

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

Interoperability endpoints

  • Direct secure messaging: jyoon41789@mskcc.direct-ci.com

Organizations & group practices 7

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 6

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": "1490227200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1722470400000",
    "number": "1669903548",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "212-639-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 YORK AVE",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656007",
            "telephone_number": "212-639-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YOON",
        "first_name": "JAMES",
        "middle_name": "JUN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-03-23",
        "last_updated": "2024-08-01",
        "certification_date": "2024-08-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "329655",
            "primary": false
        },
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "NY",
            "license": "329655",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "NY",
            "license": "329655",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

Verify at the official NPI Registry.