Individual provider Active NPI

Matthew Smith, MD PHD

  • Medical Oncology Physician
  • Boston, MA
National Provider Identifier
1679554588
Registry record updated Feb 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
79707 Issued in MA
Practice address
100 Blossom St
Hematology Oncology Associates Cox 640
Boston, MA 02114-2617
Phone
(617) 724-5257
Fax
(617) 724-3166
NPI assigned
Nov 8, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 11, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X 79707 MA Primary
Internal Medicine Physician 207R00000X 79707 MA

Addresses

Primary practice location

100 Blossom St
Hematology Oncology Associates Cox 640
Boston, MA 02114-2617

Mailing address

PO Box 9142
Mass General Physician Organization
Charlestown, MA 02129-9142
Phone (617) 727-5257

Other practice location 1

55 Fruit St
Boston, MA 02114-2621
Phone (617) 726-3030

Other practice location 2

75 Francis St
Boston, MA 02115-6110
Phone (617) 724-5257

Other identifiers 3

IdentifierTypeStateIssuer
J30604OtherMABCBS MA
3150691MedicaidMA
079707OtherMATUFTS HEALTH PLAN

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050802000371 MA Practitioner - Medical OncologyPractitioner - Internal MedicinePractitioner - Hematology/Oncology 3476581398 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
Duke University School of Medicine, 1992
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
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

40 2ND Ave
Waltham, MA 02451-1132
Phone (781) 487-2900

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

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

Hospital & facility affiliations

  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
  • Newton-Wellesley Hospital Hospital, Newton, MA, CCN 220101
  • Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110
  • North Shore Medical Center - Hospital, Salem, MA, CCN 220035
  • Wentworth-Douglass Hospital Hospital, Dover, NH, CCN 300018

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
79707MAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc Internal Medicine CurrentSince Jan 27, 2026 Accepting new patients
Massachusetts General Physicians Organization Inc Internal Medicine CurrentSince Jul 21, 1994 Accepting new patients
The General Hospital Corporation CurrentSince Oct 1, 2006 Accepting new patients
General Hospital Corp Current Accepting new patients
Brigham and Womens Physicians Organization Inc Past Accepting new patients

Locations

100 Blossom St
#640
Boston, MA 02114
Phone (617) 724-1124

55 Fruit St
Ste 7030
Boston, MA 02114

55 Fruit St
#7030
Boston, MA 02114

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

55 Fruit St
Boston, MA 02114

75 Francis St
Boston, MA 02115

1153 Centre St
#L1
Jamaica Plain, MA 02130

Interoperability endpoints

  • Direct secure messaging: smith.matthew.mgh@direct.partners.masshiway.net

Organizations & group practices 5

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 6

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": "1131408000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770768000000",
    "number": "1679554588",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9142",
            "address_2": "MASS GENERAL PHYSICIAN ORGANIZATION",
            "city": "CHARLESTOWN",
            "state": "MA",
            "postal_code": "021299142",
            "telephone_number": "617-727-5257",
            "fax_number": "617-726-4899"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 BLOSSOM ST",
            "address_2": "HEMATOLOGY ONCOLOGY ASSOCIATES COX 640",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142617",
            "telephone_number": "617-724-5257",
            "fax_number": "617-724-3166"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "55 Fruit St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142621",
            "country_code": "US",
            "telephone_number": "617-726-3030",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "617-724-5257",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SMITH",
        "first_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "MD PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-08",
        "last_updated": "2026-02-11",
        "certification_date": "2026-02-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "79707",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "79707",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS MA",
            "identifier": "J30604",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3150691",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS HEALTH PLAN",
            "identifier": "079707",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.