NPIMap

Organization Active NPI

Marlborough Hospitalist Group, PLLC

  • Hospitalist Physician
  • Marlborough, MA
National Provider Identifier
1316639321
Registry record updated Aug 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
Legal business name
MARLBOROUGH HOSPITALIST GROUP, PLLC
Practice address
157 Union St
Marlborough, MA 01752-1228
Phone
(508) 481-5000
NPI assigned
May 26, 2023
Last updated
Aug 13, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 13, 2026

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

Authorized official

Name
Kim Larsen
Title
Director of Credentialing
Phone
(770) 874-5400

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X NU Primary

Addresses

Primary practice location

157 Union St
Marlborough, MA 01752-1228

Mailing address

PO Box 35944
Belfast, ME 04915-1201
Phone (770) 874-5400

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20230815001157 MA Part B Supplier - Clinic/Group Practice 1254793888 Receives reassigned benefits from 88 practitioners
Practice locations: Marlborough, MA

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 88

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 88

NPI Registry JSON

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

{
    "created_epoch": "1685059200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1786579200000",
    "number": "1316639321",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35944",
            "city": "BELFAST",
            "state": "ME",
            "postal_code": "049151201",
            "telephone_number": "770-874-5400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "157 UNION ST",
            "city": "MARLBOROUGH",
            "state": "MA",
            "postal_code": "017521228",
            "telephone_number": "508-481-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MARLBOROUGH HOSPITALIST GROUP, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2023-05-26",
        "last_updated": "2026-08-13",
        "certification_date": "2026-08-13",
        "status": "A",
        "authorized_official_last_name": "LARSEN",
        "authorized_official_first_name": "KIM",
        "authorized_official_title_or_position": "DIRECTOR OF CREDENTIALING",
        "authorized_official_telephone_number": "770-874-5400"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Marlborough, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.