Individual provider Active NPI

Alexandra Baker Columbus, M.D.

  • Surgery Physician
  • Boston, MA
National Provider Identifier
1790128635
Registry record updated Jun 23, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
262853 Issued in MA
Practice address
75 Francis St
Brigham and Women's Hospital Department of Surgery
Boston, MA 02115-6110
Phone
(202) 255-7471
NPI assigned
Apr 10, 2013
Last updated
Jun 23, 2021By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 23, 2021

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X NU
Surgery Physician 208600000X 262853 MA Primary

Addresses

Primary practice location

75 Francis St
Brigham and Women's Hospital Department of Surgery
Boston, MA 02115-6110

Mailing address

75 Francis St
Brigham and Women's Hospital Department of Surgery
Boston, MA 02115-6110

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
I20210901000337 MA Practitioner - General Surgery 7113323015 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Jefferson Medical College of Thomas Jefferson University, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Emerson Practice Associates, IncGroup PAC ID 8123188117, 247 clinicians
Pratt Surgical Associates IncGroup PAC ID 4486546082, 44 clinicians

Practice addresses (Care Compare)

133 Old Rd to 9 Acre Cor
Concord, MA 01742-4159
Phone (978) 287-3020

133 Old Rd to Nine Acre Corner
Mary Beth Misserville
Concord, MA 01742-4159

800 Washington St
Boston, MA 02111-1552
Phone (617) 636-5000

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy16

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The General Hospital Corporation CurrentSince Jan 28, 2025 Accepting new patients
Emerson Practice Associates, Inc. CurrentSince Jun 1, 2021 Accepting new patients
Massachusetts General Physicians Organization Inc Surgery CurrentSince Jan 28, 2025 Accepting new patients
Pratt Surgical Associates Inc Surgery CurrentSince Jan 1, 2026 Accepting new patients
Emerson Hospital Past Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

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

75 Francis St
Boston, MA 02115

800 Washington St
#1013
Boston, MA 02111
Phone (617) 636-0491

133 Ornac
Concord, MA 01742
Phone (978) 287-3000

959 Concord St
Ste 200
Framingham, MA 01701
Phone (508) 532-0223

Interoperability endpoints

  • Direct secure messaging: columbus.alexandra.epa@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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1365552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1624406400000",
    "number": "1790128635",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "address_2": "BRIGHAM AND WOMEN'S HOSPITAL DEPARTMENT OF SURGERY",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "address_2": "BRIGHAM AND WOMEN'S HOSPITAL DEPARTMENT OF SURGERY",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110",
            "telephone_number": "202-255-7471"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "COLUMBUS",
        "first_name": "ALEXANDRA",
        "middle_name": "BAKER",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-04-10",
        "last_updated": "2021-06-23",
        "certification_date": "2021-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MA",
            "license": "262853",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.