NPIMap

Individual provider Active NPI

Mary Catherine Boulanger, MD

  • Medical Oncology Physician
  • Boston, MA
National Provider Identifier
1548825607
Registry record updated May 1, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
1023049 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2696
Phone
(617) 726-2000
NPI assigned
May 4, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 1, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X 1023049 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2696

Mailing address

55 Fruit St
Boston, MA 02114-2696
Phone (617) 726-2000

Other practice location 1

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250530000175 MA Practitioner - Internal Medicine 2062834963 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Kentucky College of Medicine, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians
The General Hospital CorporationGroup PAC ID 6507803806, 1,275 clinicians
Brigham and Womens Physicians Organization IncGroup PAC ID 3870405988, 2,931 clinicians

Practice addresses (Care Compare)

243 Charles St
Suite 1107
Boston, MA 02114-3002
Phone (617) 273-5699

55 Fruit St
Boston, MA 02114-2621
Phone (617) 726-2000

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-0287

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

Hospital & facility affiliations

  • Mass General Brigham Home Care, Inc Home health agency, Newton, MA, CCN 227207
  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
  • Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110
  • Massachusetts Eye and Ear Infirmary - Hospital, Boston, MA, CCN 220075
  • North Shore Medical Center - Hospital, Salem, MA, CCN 220035

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
1023049MAMDMedical Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc CurrentSince Apr 20, 2025 Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince Apr 20, 2025 Accepting new patients
The General Hospital Corporation CurrentSince Apr 20, 2025 Accepting new patients
General Hospital Corp Current Accepting new patients

Locations

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

75 Francis St
Boston, MA 02115

55 Fruit St
Boston, MA 02114

62 13th St
Charlestown, MA 02129
Phone (617) 724-4260

Interoperability endpoints

  • Direct secure messaging: boulanger.mary.mgh@direct.partners.masshiway.net

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1556928000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746057600000",
    "number": "1548825607",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-726-2000"
        },
        {
            "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": "021156110",
            "country_code": "US",
            "telephone_number": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BOULANGER",
        "first_name": "MARY",
        "middle_name": "CATHERINE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-05-04",
        "last_updated": "2025-05-01",
        "certification_date": "2025-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "1023049",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.