Individual provider Active NPI

Michelle Madden, MB BCH BAO

  • Nephrology Physician
  • Boston, MA
National Provider Identifier
1750921045
Registry record updated Jun 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
3018012 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2696
Phone
(617) 726-2000
NPI assigned
Jan 14, 2020
Last updated
Jun 24, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 24, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 3018012 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2696

Mailing address

45 Francis St
Boston, MA 02115-6105

Other practice location 1

75 Francis St
Boston, MA 02115-6106
Phone (617) 732-5636

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mmadden4@mgb.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
3018012MAMDNephrology Physician

NPI Registry JSON

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

{
    "created_epoch": "1578960000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750723200000",
    "number": "1750921045",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "45 FRANCIS ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156105"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-726-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156106",
            "country_code": "US",
            "telephone_number": "617-732-5636",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MADDEN",
        "first_name": "MICHELLE",
        "name_prefix": "Dr.",
        "credential": "MB BCH BAO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-01-14",
        "last_updated": "2025-06-24",
        "certification_date": "2025-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "MA",
            "license": "3018012",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmadden4@mgb.org",
            "affiliation": "N",
            "endpointDescription": "Work email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "55 Fruit St",
            "city": "Boston",
            "state": "MA",
            "country_code": "US",
            "postal_code": "021142696",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2025; 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.