Margaret Mary Massett, DO

Primary specialty

Pediatric Hematology & Oncology PhysicianTaxonomy code 2080P0207X

License

25MB12765700 Issued in NJ

Practice address

195 Little Albany St
New Brunswick, NJ 08901-1914

Phone

(732) 235-2465

NPI assigned

Mar 30, 2022

Sex

Female

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 Osteopathy

State licenses

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

{
    "created_epoch": "1648598400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770595200000",
    "number": "1881334704",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "195 LITTLE ALBANY ST",
            "city": "NEW BRUNSWICK",
            "state": "NJ",
            "postal_code": "089011914"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "195 LITTLE ALBANY ST",
            "city": "NEW BRUNSWICK",
            "state": "NJ",
            "postal_code": "089011914",
            "telephone_number": "732-235-2465"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASSETT",
        "first_name": "MARGARET",
        "middle_name": "MARY",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-03-30",
        "last_updated": "2026-02-09",
        "certification_date": "2026-02-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "NJ",
            "license": "25MB12765700",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kelly Anne Martin, RD
• Patricia Martin, DO
• Melissa Martinez, APN-BC
• Maryjoy Marzan, APN
• Leah A Maselli, PSYD
• Margaret Masterson
• Richard J Masterson, MD
• Reni Mathai, APN
• Sameera Mathan
• Betsy J Mathew, MD

• Pediatric Hematology & Oncology Physician in New Brunswick, NJ
• Providers in New Brunswick, NJ by specialty
• Pediatric Hematology & Oncology Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 9, 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.