NPIMap

Organization Active NPI

Merrimack Valley Internal Medicine LTC

  • Internal Medicine Physician
  • Bedford, MA
National Provider Identifier
1134054547
Registry record updated Aug 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
Legal business name
MERRIMACK VALLEY INTERNAL MEDICINE LTC
Practice address
22 Webber Ave
Bedford, MA 01730-2213
Phone
(978) 430-2975
NPI assigned
Jun 16, 2026
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Aug 4, 2026

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

Authorized official

Name
Michael G BertosNPI 1043245145
Title
Owner
Phone
(978) 459-2152

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207R00000X Primary

Addresses

Primary practice location

22 Webber Ave
Bedford, MA 01730-2213

Mailing address

22 Webber Ave
Bedford, MA 01730-2213

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 5

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1781568000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1785801600000",
    "number": "1134054547",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 WEBBER AVE",
            "city": "BEDFORD",
            "state": "MA",
            "postal_code": "017302213"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 WEBBER AVE",
            "city": "BEDFORD",
            "state": "MA",
            "postal_code": "017302213",
            "telephone_number": "978-430-2975"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MERRIMACK VALLEY INTERNAL MEDICINE LTC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-06-16",
        "last_updated": "2026-08-04",
        "certification_date": "2026-08-04",
        "status": "A",
        "authorized_official_last_name": "BERTOS",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_middle_name": "G",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "978-459-2152"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bedford, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.