NPIMap

Individual provider Active NPI

Michael T Johnstone, M.D.

  • Cardiovascular Disease Physician
  • Brighton, MA
National Provider Identifier
1235164336
Registry record updated Apr 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
60598 Issued in MA
Practice address
736 Cambridge St, 4TH FL
Cardiovascular Medicine Suite, 4TH FL Margaret'S
Brighton, MA 02135-2907
Phone
(617) 562-7690
Fax
(617) 562-7699
NPI assigned
Jul 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 30, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Nuclear Cardiology Physician 207UN0901X 60598 MA
Internal Medicine Physician 207R00000X 60598 MA
Cardiovascular Disease Physician 207RC0000X 60598 MA Primary

Addresses

Primary practice location

736 Cambridge St, 4TH FL
Cardiovascular Medicine Suite, 4TH FL Margaret'S
Brighton, MA 02135-2907

Mailing address

960 Massachusetts Ave
FL 2
Boston, MA 02118

Other practice location 1

77 Warren St
2nd Floor
Brighton, MA 02135
Phone (617) 562-5525

Other identifiers 2

IdentifierTypeStateIssuer
110048563AMedicaidMA
3154003MedicaidNH

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
I20060322000546 MA Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 5395753032 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
M H Kornberg School of Dentistry, Temple University, 1982
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
BMC Affiliated Physicians, Inc.Group PAC ID 9830133123, 543 clinicians
Steward St Elizabeths Medical Center of Boston IncGroup PAC ID 3476749540, 9 clinicians

Practice addresses (Care Compare)

736 Cambridge St
Brighton, MA 02135-2907
Phone (617) 789-3000

77 Warren St
Brighton, MA 02135-3601

77 Warren St 1St Floor
St Elizabeths Health Care at BMHC
Brighton, MA 02135-3601

77 Warren St 1St Floor and 2ND Floor
St Elizabeths Health Care at BMHC
Brighton, MA 02135-3601
Phone (617) 562-5200

Hospital & facility affiliations

  • Boston Medical Center-Brighton Hospital, Brighton, MA, CCN 220036
  • Good Samaritan Medical Center Hospital, Brockton, MA, CCN 220111
  • Merrimack Health Lawrence Hospital Hospital, Lawrence, MA, CCN 220010
  • Holy Family Hospital Hospital, Methuen, MA, CCN 220080
  • Boston Medical Center Hospital, Boston, MA, CCN 220031

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
60598MAMDNuclear Cardiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Steward Medical Group, Inc CurrentSince Nov 6, 2010 Accepting new patients
BMC Affiliated Physicians, Inc. Internal Medicine CurrentSince Apr 1, 2025 Accepting new patients
Revere Medical of Massachusetts, PC Internal Medicine CurrentSince Oct 30, 2024 Accepting new patients
Steward Medical Group, Inc CurrentSince Nov 6, 2010 Accepting new patients
Boston Medical Center - Brighton Corporation Past Accepting new patients
Caritas St. Elizabeth'S Medical Center Past Accepting new patients

Locations

930 Commonwealth Ave
Boston, MA 02215
Phone (617) 262-2020

960 Massachusetts Ave
Ste 2
Boston, MA 02118

736 Cambridge St
#3
Brighton, MA 02135
Phone (617) 789-2109

736 Cambridge St
Fl 4
Brighton, MA 02135
Phone (617) 562-7690

77 Warren St
Fl 2
Brighton, MA 02135
Phone (617) 562-5525

11 Nevins St
Ste 201
Brighton, MA 02135
Phone (617) 789-2442

77 Warren St
Fl 1
Brighton, MA 02135
Phone (617) 562-5200

736 Cambridge St
Brighton, MA 02135
Phone (617) 789-2762

77 Warren St
#2
Brighton, MA 02135

11 Nevins St
Brighton, MA 02135
Phone (617) 562-2782

77 Warren St
Brighton, MA 02135
Phone (617) 254-1271

235 N Pearl St
Brockton, MA 02301
Phone (508) 427-2525

822 Boylston St
Ste 102
Chestnut Hill, MA 02467
Phone (617) 396-8866

15 Payson Rd
Ste 3
Foxboro, MA 02035
Phone (508) 772-1438

100 Amesbury St
Ste 103
Lawrence, MA 01840
Phone (978) 683-0157

88 Washington St
Taunton, MA 02780
Phone (508) 828-7000

40 Spring St
Watertown, MA 02472
Phone (617) 923-8433

Interoperability endpoints

  • Direct secure messaging: mjohnstone252300@direct.bmc.masshiway.net
  • Direct secure messaging: michael.johnstone.1@2017.direct.athenahealth.com
  • Direct secure messaging: michael.johnstone.4@2017.direct.athenahealth.com

Organizations & group practices 7

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.

Hospital & facility affiliations 12

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": "1152576000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1235164336",
    "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": "736 CAMBRIDGE ST, 4TH FL",
            "address_2": "CARDIOVASCULAR MEDICINE SUITE, 4TH FL MARGARET'S",
            "city": "BRIGHTON",
            "state": "MA",
            "postal_code": "021352907",
            "telephone_number": "617-562-7690",
            "fax_number": "617-562-7699"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "77 Warren St",
            "address_2": "2nd Floor",
            "address_purpose": "LOCATION",
            "city": "Brighton",
            "state": "MA",
            "postal_code": "02135",
            "country_code": "US",
            "telephone_number": "617-562-5525",
            "fax_number": "617-562-5546",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JOHNSTONE",
        "first_name": "MICHAEL",
        "middle_name": "T",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-11",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207UN0901X",
            "taxonomy_group": "",
            "desc": "Nuclear Medicine, Nuclear Cardiology",
            "state": "MA",
            "license": "60598",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "60598",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MA",
            "license": "60598",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110048563A",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3154003",
            "state": "NH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Brighton, MA

Sources for this page

Verify at the official NPI Registry.