NPIMap

Individual provider Active NPI

Michael G Bertos, M.D.

  • Internal Medicine Physician
  • N Chelmsford, MA
National Provider Identifier
1043245145
Registry record updated Nov 2, 2011
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
160611 Issued in MA
Practice address
20 Research PL
Suite 310
N Chelmsford, MA 01863-2454
Phone
(978) 459-2152
NPI assigned
Jul 11, 2006
Last updated
Nov 2, 2011By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 2, 2011

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 160611 MA Primary

Addresses

Primary practice location

20 Research PL
Suite 310
N Chelmsford, MA 01863-2454

Mailing address

20 Research PL
Suite 310
N Chelmsford, MA 01863-2454
Phone (978) 459-2152

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
I20120112000019 MA Practitioner - Internal Medicine 5799855128 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Boston University School of Medicine, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
LGH Professional Services LLCGroup PAC ID 8921364159, 10 clinicians

Practice addresses (Care Compare)

20 Research PL
Suite 310
North Chelmsford, MA 01863-2455
Phone (978) 459-2152

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Merrimack Valley Internal Medicine LTC Internal Medicine CurrentSince Jul 1, 2026 Accepting new patients
LGH Professional Services LLC Internal Medicine CurrentSince Sep 10, 2017 Accepting new patients
LGH Medical Group, Inc. Past Accepting new patients
Sunny Acres Opco LLC Past Accepting new patients
30 Princeton Opco LLC Past Accepting new patients
Northwood Ma SNF LLC Past Accepting new patients
Merrimack Valley Internal Medicine Internal Medicine PastSince Jul 1, 2026 Accepting new patients
19 Varnum Street Operating Company, LLC Past Accepting new patients

Locations

295 Varnum Ave
Lowell, MA 01854
Phone (978) 788-7344

20 Research Pl
North Chelmsford, MA 01863
Phone (978) 788-7200

20 Research Pl
Ste 310
North Chelmsford, MA 01863
Phone (978) 459-2152

Interoperability endpoints

  • Direct secure messaging: michael.bertos@mvima.eclinicaldirectplus.com

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Sunny Acres Skilled Nursing and Rehabilitation CenterChelmsford, MA, CCN 225494 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Jan 1, 2014
Jan 1, 2014

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

  • Sunny Acres Opco LLC

    dba Sunny Acres Skilled Nursing and Rehabilitation

    • Skilled Nursing Facility
    • Chelmsford, MA
    • NPI 1306624325

    Adp of the SNF, Operational/Managerial Control

    CMS ownership

Organizations & group practices 8

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 19

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 19

NPI Registry JSON

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

{
    "created_epoch": "1152576000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1320192000000",
    "number": "1043245145",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 RESEARCH PL",
            "address_2": "SUITE 310",
            "city": "N CHELMSFORD",
            "state": "MA",
            "postal_code": "018632454",
            "telephone_number": "978-459-2152"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 RESEARCH PL",
            "address_2": "SUITE 310",
            "city": "N CHELMSFORD",
            "state": "MA",
            "postal_code": "018632454",
            "telephone_number": "978-459-2152"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BERTOS",
        "first_name": "MICHAEL",
        "middle_name": "G",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-11",
        "last_updated": "2011-11-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "160611",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in N Chelmsford, MA

Sources for this page

Verify at the official NPI Registry.