Ioannis Mastoris, MD

Primary specialty

Advanced Heart Failure and Transplant Cardiology PhysicianTaxonomy code 207RA0001X

License

291827 Issued in MA

Practice address

55 Fruit St
GRB 800
Boston, MA 02114-2696

Phone

(617) 643-7972

NPI assigned

Jul 30, 2015

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in MA, NH2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Advanced Heart Failure and Transplant CardiologyAlso: Cardiovascular Disease (Cardiology)

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
• Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110
• Newton-Wellesley Hospital Hospital, Newton, MA, CCN 220101
• North Shore Medical Center - Hospital, Salem, MA, CCN 220035
• Cooley Dickinson Hospital Inc,the Hospital, Northampton, MA, CCN 220015

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mastoris.ioannis.mgh@direct.partners.masshiway.net

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.

• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573
  Medicare reassignment Care Compare group NPD
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment NPD
• Wentworth Douglass Physician Corporation

  • Magnetic Resonance Imaging Radiologic Technologist
  • Dover, NH
  • NPI 1447352430

  Cardiovascular Disease

  Medicare reassignment NPD
• General Hospital Corp

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1508390014
  NPD
• Wentworth Douglass Physician Corporation

  • Diagnostic Radiology Physician
  • Somersworth, NH
  • NPI 1295326494
  NPD

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

• Brigham & Womens Hospital, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1790717650
  Care Compare affiliation
• Cooley Dickinson Hospital Inc

  • General Acute Care Hospital
  • Northampton, MA
  • NPI 1477596310
  Care Compare affiliation
• Cooley Dickinson Hospital Inc

  • Psychiatric Hospital Unit
  • Northampton, MA
  • NPI 1871512814
  Care Compare affiliation
• Newton-Wellesley Hospital

  • General Acute Care Hospital
  • Newton, MA
  • NPI 1992737761
  Care Compare affiliation
• North Shore Medical Center, Inc.

  • General Acute Care Hospital
  • Salem, MA
  • NPI 1730121633
  Care Compare affiliation
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Care Compare affiliation

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

{
    "created_epoch": "1438214400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1682899200000",
    "number": "1124403209",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9142",
            "city": "CHARLESTOWN",
            "state": "MA",
            "postal_code": "021299142"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "address_2": "GRB 800",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-643-7972"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "67 Corporate Dr Ste 200",
            "address_purpose": "LOCATION",
            "city": "Portsmouth",
            "state": "NH",
            "postal_code": "038012847",
            "country_code": "US",
            "telephone_number": "603-610-8070",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASTORIS",
        "first_name": "IOANNIS",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-07-30",
        "last_updated": "2023-05-01",
        "certification_date": "2023-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RA0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Advanced Heart Failure and Transplant Cardiology",
            "state": "NH",
            "license": "23750",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MA",
            "license": "291827",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NH",
            "license": "23750",
            "primary": false
        },
        {
            "code": "207RA0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Advanced Heart Failure and Transplant Cardiology",
            "state": "MA",
            "license": "291827",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Grace Masters
• Madison Alyssa Masters
• Catherine Hagen Masterson, APRN-BC
• Scott Robert Masterson, M.D.
• Megan Lynn Masteson
• Sandra Mastrangelo, MD
• Ralph Francis Mastriano II, MS, RPH.
• James Francis Mastromatteo, M.D.
• Rosemarie Mastropolo, MD
• Sarah Masukewicz, RD, LDN, CNSC

• Advanced Heart Failure and Transplant Cardiology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Advanced Heart Failure and Transplant Cardiology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.