Individual provider Active NPI

Janet C Larson, M.D.

  • Internal Medicine Physician
  • Boston, MA
National Provider Identifier
1831159326
Registry record updated Apr 3, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
220603 Issued in MA
Practice address
801 Massachusetts Ave
Crosstown 2
Boston, MA 02118
Phone
(617) 414-7399
Fax
(617) 414-4676
NPI assigned
Mar 27, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 3, 2024

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 220603 MA Primary
Hospitalist Physician 208M00000X 220603 MA

Addresses

Primary practice location

801 Massachusetts Ave
Crosstown 2
Boston, MA 02118

Mailing address

960 Massachusetts Ave
FL 2
Boston, MA 02118

Other names 1

  • Dr. Janet Carlisle Hanousek Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, PA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20040723000081 MA Practitioner - Internal MedicinePractitioner - Hospitalist 2769462399 Reassigns benefits to 1 organization
I20260507000896 PA Practitioner - Internal Medicine 2769462399 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Boston University School of Medicine, 1998
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

101 E Olney Ave
Suite 400
Philadelphia, PA 19120-2470

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
220603MAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mass General Brigham Medical Group Suburban Massachusetts Inc CurrentSince Nov 1, 2007 Accepting new patients
Boston Medical Center Corporation Current Accepting new patients
Einstein Practice Plan Inc Past Accepting new patients
Newton-Wellesley Hospital Past Accepting new patients
Marin Hospitalist Medical Group, Inc. Internal Medicine PastSince May 20, 2005 Accepting new patients

Locations

960 Massachusetts Ave
Ste 2
Boston, MA 02118

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

9 Hope Ave
Waltham, MA 02453
Phone (617) 243-5590

Interoperability endpoints

  • Direct secure messaging: jlarson156504@direct.bmc.masshiway.net

Organizations & group practices 6

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.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1143417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1712102400000",
    "number": "1831159326",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "960 MASSACHUSETTS AVE",
            "address_2": "FL 2",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02118"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "801 MASSACHUSETTS AVE",
            "address_2": "CROSSTOWN 2",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02118",
            "telephone_number": "617-414-7399",
            "fax_number": "617-414-4676"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSON",
        "first_name": "JANET",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-03-27",
        "last_updated": "2024-04-03",
        "certification_date": "2024-04-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "220603",
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MA",
            "license": "220603",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JANET",
            "last_name": "HANOUSEK",
            "middle_name": "CARLISLE",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.