Leonid Mirson, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

1026379 Issued in MA

Practice address

300 Mount Auburn St Ste 419
Cambridge, MA 02138-5665

Phone

(617) 354-8771

NPI assigned

Apr 10, 2020

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MD

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1586476800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788480000000",
    "number": "1205455144",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "330 MOUNT AUBURN ST",
            "address_2": "PARSONS 2",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021385597",
            "telephone_number": "617-354-8771"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 MOUNT AUBURN ST STE 419",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021385665",
            "telephone_number": "617-354-8771"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MIRSON",
        "first_name": "LEONID",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-04-10",
        "last_updated": "2026-09-04",
        "certification_date": "2026-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "MA",
            "license": "1026379",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1026379",
            "primary": true
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "MA",
            "license": "1026379",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110237873A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Courtney Minton
• Catharine M. Mintzer, M.D.
• Ira Mintzer
• Elizabeth Miraglia
• James Miranti, M.D.
• Maira Mirza, M.D
• Alexandra Mischke, BCSI
• Debashish Misra, M.D.
• Murti Mistri, NP
• Sarah Debrun Mitch, LCSW

• Internal Medicine Physician in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Internal Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.