Margaret Denger McMahon

Primary specialty

Critical Care Medicine Registered NurseTaxonomy code 163WC0200X

License

RN2385534 Issued in MA

Practice address

35 Eldridge Rd Apt 103
Jamaica Plain, MA 02130-4648

Phone

(301) 830-1408

NPI assigned

Feb 16, 2026

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Maggie McMahon Other name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1771200000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771200000000",
    "number": "1871446419",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "35 ELDRIDGE RD APT 103",
            "city": "JAMAICA PLAIN",
            "state": "MA",
            "postal_code": "021304648",
            "telephone_number": "301-830-1408"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "35 ELDRIDGE RD APT 103",
            "city": "JAMAICA PLAIN",
            "state": "MA",
            "postal_code": "021304648",
            "telephone_number": "301-830-1408"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMAHON",
        "first_name": "MARGARET",
        "middle_name": "DENGER",
        "name_prefix": "Ms.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-02-16",
        "last_updated": "2026-02-16",
        "certification_date": "2026-02-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "MA",
            "license": "RN2385534",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MAGGIE",
            "last_name": "MCMAHON",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Carmenleah McKenzie-Ascencio, LICSW
• Catherine McKeown-Lindsey
• Alistair Andrew McKnight
• Donna M McLaughlin, MSW, LICSW
• Sinead D McLaughlin, LCSW
• Brooke McMullen
• Jacqueline Yvette McNeil
• Moe McNeill
• Michael W McSweeney, CRNA
• Caleb McVey, FNP-BC

• Critical Care Medicine Registered Nurse in Jamaica Plain, MA
• Providers in Jamaica Plain, MA by specialty
• Critical Care Medicine Registered Nurse in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 16, 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.