Jonathan Leong, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

329907 Issued in NY

Practice address

111 E 210TH St
Bronx, NY 10467-2401

Phone

(718) 920-4321

NPI assigned

Mar 23, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

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

Specialty

Internal MedicineAlso: Hospice/Palliative Care

Education

State University of New York Downstate Medical Center, 2021

Medicare assignment

May accept Medicare assignment

Group practices

Montefiore Medical CenterGroup PAC ID 3779496021, 2,809 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Montefiore Medical Center Hospital, Bronx, NY, CCN 330059

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

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

Interoperability endpoints

• Direct secure messaging: joleong@montefioredirect.com

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.

• Montefiore Medical Center

  • Anesthesiology Physician
  • Bronx, NY
  • NPI 1063525152

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Montefiore Medical Center

  • Community/Retail Pharmacy
  • Bronx, NY
  • NPI 1194183715
  NPD
• Montefiore Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1952476988
  NPD (past)

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

• Montefiore Medical Center

  • General Acute Care Hospital
  • Bronx, NY
  • NPI 1952476988
  Care Compare affiliation

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

{
    "created_epoch": "1616457600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787097600000",
    "number": "1205412962",
    "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": "104672401",
            "telephone_number": "718-920-4321"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEONG",
        "first_name": "JONATHAN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-23",
        "last_updated": "2026-08-19",
        "certification_date": "2026-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "329907",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marisa Orense Leonardo, RPAC
• Christopher Olaf Leonards, MD
• Alyssa Leone, M.A., CCC-SLP, TSSLD
• Laura Ann Leone, LMSW
• Jodi Lynn Leonforte, CLC
• Hannah Leoni-Hughes, LMSW
• Nina Leonidas
• Leopold Allen
• Leotilde Academy Multi Service Inc
• Melissa Leppert

• Internal Medicine Physician in Bronx, NY
• Providers in Bronx, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.