NPIMap

Individual provider Active NPI

Brendan J Connell, M.D.

  • Medical Oncology Physician
  • Boston, MA
National Provider Identifier
1306131933
Registry record updated Aug 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
257299 Issued in MA
Practice address
41 Mall Road
Lahey Hospital and Medical Center
Boston, MA 01805-0001
Phone
(781) 744-8400
Fax
(781) 744-5245
NPI assigned
Jun 11, 2011
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 14, 2026

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 257299 MA Primary

Addresses

Primary practice location

41 Mall Road
Lahey Hospital and Medical Center
Boston, MA 01805-0001

Mailing address

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

Other practice location 1

75 Francis St
Boston, MA 02115-6106
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
I20140911000213 MA Practitioner - Medical OncologyPractitioner - Internal MedicinePractitioner - Hematology/Oncology 3971722661 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
Other, 2011
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Lahey Clinic IncGroup PAC ID 2264336528, shared by 3 NPIs, 1,381 clinicians

Practice addresses (Care Compare)

1 Essex Ctr Dr
Peabody, MA 01960-2901
Phone (978) 538-4000

29 Mall Rd
Burlington, MA 01805-0001

41 Mall Rd
Burlington, MA 01805-0001

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
91.98 of 100Reported as apm
Quality
76.59
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Lahey Clinic Hospital, Inc. Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: bconnell12508@direct.bilh.masshiway.net

Organizations & group practices 3

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 7

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": "1307750400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786665600000",
    "number": "1306131933",
    "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": "41 MALL ROAD",
            "address_2": "LAHEY HOSPITAL AND MEDICAL CENTER",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "018050001",
            "telephone_number": "781-744-8400",
            "fax_number": "781-744-5245"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156106",
            "country_code": "US",
            "telephone_number": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CONNELL",
        "first_name": "BRENDAN",
        "middle_name": "J",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-06-11",
        "last_updated": "2026-08-14",
        "certification_date": "2026-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "257299",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.