Matthew Lowell Meizlish, MD, PHD

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

1952988263 Issued in MA

Practice address

450 Brookline Ave
Boston, MA 02215-5450

Phone

(617) 632-3000

NPI assigned

Mar 24, 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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

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

{
    "created_epoch": "1616544000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1952988263",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "337 WESTERN AVE",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021393747",
            "telephone_number": "203-858-1713"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155450",
            "telephone_number": "617-632-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MEIZLISH",
        "first_name": "MATTHEW",
        "middle_name": "LOWELL",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-24",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "1952988263",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• James L. Meisel, MD
• Jane Lowe Meisel, MD
• Zhanna Meisels
• Robert C Meisner, MD
• William Louis Meissner III, RN
• Melissa Alejandra Mejia Bautista, MD
• Nicte Itzel Mejia-Gonzalez, MD
• Emily Mejia, MD
• Ivanna P Mejia
• Jeannette Mejia

• Medical Oncology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Medical Oncology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.