NPIMap

Individual provider Active NPI

Thomas Flood, M.D., PH.D.

  • Diagnostic Radiology Physician
  • Boston, MA
National Provider Identifier
1093155541
Registry record updated Jul 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
273596 Issued in MA
Practice address
55 Fruit St # 210
Boston, MA 02114-2621
Phone
(617) 724-7168
NPI assigned
Jun 28, 2013
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 28, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 256996 MA
Diagnostic Radiology Physician 2085R0202X 273596 MA Primary
Student in an Organized Health Care Education/Training Program 390200000X TL0005039 CO

Addresses

Primary practice location

55 Fruit St # 210
Boston, MA 02114-2621

Mailing address

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

Other practice location 1

1635 Aurora Ct
Aurora, CO 80045-2541
Phone (978) 866-4668

Other practice location 2

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
I20180516000133 MA Practitioner - Diagnostic Radiology 1456615699 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
University of Massachusetts Medical School, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
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, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
256996MAMDInternal Medicine Physician
273596MAMDObstetrics & Gynecology Nurse Practitioner
TL0005039COMDStudent in an Organized Health Care Education/Training Program

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc Internal Medicine CurrentSince Apr 1, 2021 Accepting new patients
Mass General Brigham Medical Group Western Massachusetts Inc Internal Medicine CurrentSince Jul 1, 2020 Accepting new patients
The McLean Hospital Corporation CurrentSince Sep 1, 2021 Accepting new patients
Harbor Medical Associates, Inc. Internal Medicine CurrentSince Apr 1, 2021 Accepting new patients
Cooley Dickinson Hospital Inc CurrentSince Jan 19, 2021 Accepting new patients
Cooley Dickinson Hospital Inc CurrentSince Jan 19, 2021 Accepting new patients
Harbor Medical Associates, Inc. Diagnostic Radiology CurrentSince Apr 1, 2021 Accepting new patients
Newton Wellesley Hospital Current Accepting new patients
Hampshire Pathologists, Inc. Current Accepting new patients
Mass General Brigham Medical Group Suburban Massachusetts Inc CurrentSince Jul 1, 2020 Accepting new patients
Mass General Brigham Medical Group Western Massachusetts Inc Past Accepting new patients

Locations

115 Mill St
Belmont, MA 02478
Phone (617) 855-2000

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

55 Fruit St
Boston, MA 02114

55 Fruit St
#210
Boston, MA 02114
Phone (617) 724-4255

75 Francis St
Boston, MA 02115

2014 Washington St
Newtonville, MA 02462
Phone (617) 243-6000

30 Locust St
Northampton, MA 01060
Phone (413) 582-2000

12 College Hwy
Southampton, MA 01073
Phone (413) 527-1105

541 Main St
Ste 314
Weymouth, MA 02190
Phone (781) 952-1200

Interoperability endpoints

  • Direct secure messaging: flood.thomas.nwh@direct.partners.masshiway.net

Organizations & group practices 11

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": "1372377600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785196800000",
    "number": "1093155541",
    "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 # 210",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-724-7168"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1635 Aurora Ct",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800452541",
            "country_code": "US",
            "telephone_number": "978-866-4668",
            "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": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FLOOD",
        "first_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "M.D., PH.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-06-28",
        "last_updated": "2026-07-28",
        "certification_date": "2026-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "256996",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "273596",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "CO",
            "license": "TL0005039",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.