NPIMap

Individual provider Active NPI

Michael Aaron Kramer, MD

  • Internal Medicine Physician
  • Hingham, MA
National Provider Identifier
1760412613
Registry record updated Feb 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
81285 Issued in CT
Practice address
300 Linden Ponds Way
Hingham, MA 02043-3791
Phone
(781) 534-7100
NPI assigned
Jul 4, 2006
Last updated
Feb 26, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 26, 2026

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 81285 CT Primary

Addresses

Primary practice location

300 Linden Ponds Way
Hingham, MA 02043-3791

Mailing address

5730 Executive Dr Ste 230
Catonsville, MD 21228-1762
Phone (781) 534-7100

Other practice location 1

471 Barnum Ave
Bridgeport, CT 06608-2409
Phone (203) 333-3030

Other identifiers 1

IdentifierTypeStateIssuer
10608640OtherILCAQH PROVIDER ID

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
I20130103000372 MA Practitioner - Internal Medicine 9537124045 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Optimus Health Care IncGroup PAC ID 9335051580, 79 clinicians

Practice addresses (Care Compare)

300 Linden Ponds Way
Hingham, MA 02043-3791
Phone (781) 534-7100

471 Barnum Ave
Bridgeport, CT 06608-2409
Phone (203) 576-3885

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
81285CTMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Erickson Health Medical Group of Massachusetts PC CurrentSince Sep 2, 2025 Accepting new patients
Henry Heywood Memorial Hospital CurrentSince Dec 12, 2016 Accepting new patients
Harbor Health Services, Inc. CurrentSince May 1, 2021 Accepting new patients
Henry Heywood Memorial Hospital CurrentSince Dec 12, 2016 Accepting new patients
Lynn Community Health, Inc. CurrentSince May 30, 2019 Accepting new patients
Harbor Health Services, Inc. CurrentSince May 1, 2021 Accepting new patients
Erickson Health Medical Group of Massachusetts PC Internal Medicine CurrentSince Sep 2, 2025 Accepting new patients

Locations

250 Mount Vernon St
Dorchester, MA 02125
Phone (617) 288-1140

242 Green St
Gardner, MA 01440
Phone (978) 258-4734

300 Linden Ponds Way
Hingham, MA 02043
Phone (781) 534-7100

280 Union St
Ste 202
Lynn, MA 01901
Phone (781) 780-4555

269 Union St
Lynn, MA 01901
Phone (781) 581-9832

1135 Morton St
Mattapan, MA 02126
Phone (617) 533-2300

100 Brooksby Village Dr
Peabody, MA 01960
Phone (978) 536-2150

5730 Executive Dr
Ste 230
Catonsville, MD 21228
Phone (410) 402-2379

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 6

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": "1151971200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1760412613",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5730 EXECUTIVE DR STE 230",
            "city": "CATONSVILLE",
            "state": "MD",
            "postal_code": "212281762",
            "telephone_number": "781-534-7100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 LINDEN PONDS WAY",
            "city": "HINGHAM",
            "state": "MA",
            "postal_code": "020433791",
            "telephone_number": "781-534-7100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "471 Barnum Ave",
            "address_purpose": "LOCATION",
            "city": "Bridgeport",
            "state": "CT",
            "postal_code": "066082409",
            "country_code": "US",
            "telephone_number": "203-333-3030",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KRAMER",
        "first_name": "MICHAEL",
        "middle_name": "AARON",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-04",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "81285",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAQH PROVIDER ID",
            "identifier": "10608640",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Hingham, MA

Sources for this page

Verify at the official NPI Registry.