NPIMap

Individual provider Active NPI

Gail M O'Brien, MD

  • Internal Medicine Physician
  • Boston, MA
National Provider Identifier
1548236466
Registry record updated Nov 11, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
224147 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2621
Phone
(617) 724-4260
NPI assigned
Feb 28, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 11, 2021

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 224147 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2621

Mailing address

55 Fruit St
Boston, MA 02114-2621
Phone (617) 724-4260

Electronic endpoints 1

TypeEndpointUseAffiliation
CONNECT URL boston

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
I20060104000850 MA Practitioner - Internal Medicine 6204810856 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Tufts University School of Medicine, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

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

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
224147MAMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Steward Medical Group, Inc CurrentSince Oct 1, 2019 Accepting new patients
Martha'S Vineyard Hospital, Inc. Internal Medicine CurrentSince Nov 23, 2020 Accepting new patients
Martha'S Vineyard Hospital, Inc. Internal Medicine Current Accepting new patients
Lahey Clinic, Inc Internal Medicine CurrentSince Aug 7, 2017 Accepting new patients
The General Hospital Corporation CurrentSince Dec 1, 2021 Accepting new patients
General Hospital Corp Current Accepting new patients
Martha'S Vineyard Hospital, Inc. CurrentSince Nov 23, 2020 Accepting new patients
Massachusetts General Physicians Organization Inc Internal Medicine CurrentSince Dec 1, 2021 Accepting new patients
Steward Medical Group, Inc CurrentSince Oct 1, 2019 Accepting new patients
Slavin Chiropractic PastSince Jan 5, 2011 Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

50 Staniford St
Boston, MA 02114
Phone (617) 723-2015

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

11 Nevins St
Ste 505
Brighton, MA 02135
Phone (617) 414-2500

11 Nevins St
Ste 201
Brighton, MA 02135
Phone (617) 789-2442

11 Nevins St
Ste 407
Brighton, MA 02135
Phone (617) 562-7474

41 Mall Rd
Burlington, MA 01805
Phone (781) 744-8400

27 Park St
Hyannis, MA 02601
Phone (508) 775-5011

16 Hayden Ave
Lexington, MA 02421
Phone (781) 372-7060

1 Hospital Rd
Oak Bluffs, MA 02557
Phone (508) 684-4500

Interoperability endpoints

  • Direct secure messaging: obrien.gail.mgh@direct.partners.masshiway.net

Organizations & group practices 10

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": "1141084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1636588800000",
    "number": "1548236466",
    "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": "617-724-4260"
        },
        {
            "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": "617-724-4260"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "GAIL",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-28",
        "last_updated": "2021-11-11",
        "certification_date": "2021-11-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "224147",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "boston",
            "affiliation": "N",
            "address_1": "55 Fruit St",
            "city": "Boston",
            "state": "MA",
            "country_code": "US",
            "postal_code": "021142621",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.