NPIMap

Individual provider Active NPI

Harshabad Singh, MD

  • Medical Oncology Physician
  • Boston, MA
National Provider Identifier
1376834325
Registry record updated Oct 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
261854 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2621
Phone
(617) 632-3779
NPI assigned
Apr 26, 2011
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 28, 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 261854 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2621

Mailing address

55 Fruit St
Boston, MA 02114-2621
Phone (617) 632-3779

Other practice location 1

75 Francis St
Boston, MA 02115-6110
Phone (617) 620-3201

Other names 1

  • Harshabad Singh Former name

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
I20151215001941 MA Practitioner - HospitalistPractitioner - Internal Medicine 9032370440 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Other, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
The General Hospital CorporationGroup PAC ID 6507803806, 1,275 clinicians

Practice addresses (Care Compare)

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

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc Internal Medicine CurrentSince Sep 29, 2025 Accepting new patients
Massachusetts General Physicians Organization Inc Internal Medicine CurrentSince Jan 1, 2016 Accepting new patients

Locations

75 Francis St
Boston, MA 02115

55 Fruit St
Boston, MA 02114

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

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

55 Fogg Rd
Weymouth, MA 02190
Phone (781) 340-4293

Interoperability endpoints

  • Direct secure messaging: singh.harshabad.dfci@direct.partners.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": "1303776000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761609600000",
    "number": "1376834325",
    "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": "021142621",
            "telephone_number": "617-632-3779"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-632-3779"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "617-620-3201",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SINGH",
        "first_name": "HARSHABAD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-04-26",
        "last_updated": "2025-10-28",
        "certification_date": "2025-10-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "261854",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HARSHABAD",
            "last_name": "SINGH",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.