NPIMap

Individual provider Active NPI

Nayan Lamba

  • Radiation Oncology Physician
  • Boston, MA
National Provider Identifier
1336608413
Registry record updated Nov 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
1019688 Issued in MA
Practice address
75 Francis St
Boston, MA 02115-6110
Phone
(617) 665-1000
NPI assigned
Mar 18, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 24, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 1019688 MA Primary

Addresses

Primary practice location

75 Francis St
Boston, MA 02115-6110

Mailing address

75 Francis St
Boston, MA 02115-6110
Phone (617) 665-1000

Other practice location 1

100 Blossom St
Boston, MA 02114-2606
Phone (617) 726-8651

Other practice location 2

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-3782

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
I20240528000114 MA Practitioner - Radiation Oncology 1153655956 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Harvard Medical School, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

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

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
1019688MAMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham and Women'S Hospital Current Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jul 1, 2024 Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince Dec 1, 2025 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jul 1, 2024 Accepting new patients
The General Hospital Corporation CurrentSince Dec 1, 2025 Accepting new patients
Brigham & Womens Physicians Organization Inc Radiation Oncology CurrentSince Jul 1, 2024 Accepting new patients
Brigham and Womens Physicians Organization Inc Past Accepting new patients

Locations

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

100 Blossom St
Boston, MA 02114
Phone (617) 724-8770

75 Francis St
#360U2
Boston, MA 02115

55 Fruit St
Boston, MA 02114

75 Francis St
Boston, MA 02115

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

Interoperability endpoints

  • Direct secure messaging: lamba.nayan.bwh@direct.partners.masshiway.net

Organizations & group practices 7

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 3

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": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763942400000",
    "number": "1336608413",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110",
            "telephone_number": "617-665-1000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110",
            "telephone_number": "617-665-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "100 Blossom St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142606",
            "country_code": "US",
            "telephone_number": "617-726-8651",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "55 Fruit St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142696",
            "country_code": "US",
            "telephone_number": "617-724-3782",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LAMBA",
        "first_name": "NAYAN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-18",
        "last_updated": "2025-11-24",
        "certification_date": "2025-11-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MA",
            "license": "1019688",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.