NPIMap

Individual provider Active NPI

John Granquist, M.D.

  • Cardiovascular Disease Physician
  • Hartford, CT
National Provider Identifier
1699821892
Registry record updated Apr 25, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
045097 Issued in CT
Practice address
Consulting Cardiologists, P.C.
85 Seymour Street Suite 719
Hartford, CT 06106
Phone
(860) 522-1761
NPI assigned
Jan 28, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 25, 2017

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X 045097 CT Primary

Addresses

Primary practice location

Consulting Cardiologists, P.C.
85 Seymour Street Suite 719
Hartford, CT 06106

Mailing address

305 Western Blvd
Suite 100
Glastonbury, CT 06033-4380
Phone (860) 522-0604

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
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
I20070710000843 CT Practitioner - Cardiovascular Disease (Cardiology) 5294795621 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)
Education
Tufts University School of Medicine, 2000
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Consulting Cardiologists PCGroup PAC ID 7113916149, 23 clinicians
Midstate Medical CenterGroup PAC ID 7416840699, 187 clinicians
Hartford HospitalGroup PAC ID 2567366016, shared by 6 NPIs, 1,040 clinicians

Practice addresses (Care Compare)

100 Simsbury Rd
Suite 202
Avon, CT 06001-3793
Phone (860) 522-0604

1062 Barnes Rd
Suite 300
Wallingford, CT 06492-2576
Phone (203) 265-9831

305 Western Blvd
Suite 100
Glastonbury, CT 06033-4380
Phone (860) 522-0604

435 Lewis Ave
Meriden, CT 06451-2101
Phone (203) 694-8200

80 Seymour St
Hartford, CT 06102-8000

Hospital & facility affiliations

  • Hartford Hospital Hospital, Hartford, CT, CCN 070025
  • Midstate Medical Center Hospital, Meriden, CT, CCN 070017
  • Middlesex Hospital Hospital, Middletown, CT, CCN 070020
  • William W Backus Hospital Hospital, Norwich, CT, CCN 070024
  • Manchester Memorial Hospital Hospital, Manchester, CT, CCN 070027

Merit-based Incentive Payment System (MIPS)

Final score
92.63 of 100Reported as group
Quality
75.35
Promoting interoperability
100
Improvement activities
40
Cost
71.44

Merit-based Incentive Payment System (MIPS)

Final score
87.73 of 100Reported as group
Quality
68.37
Promoting interoperability
100
Improvement activities
40
Cost
76.58

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
045097CTMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Midstate Medical Center CurrentSince Apr 20, 2025 Accepting new patients
Hartford Hospital CurrentSince Jan 21, 2021 Accepting new patients
Hartford Hospital CurrentSince Jan 21, 2021 Accepting new patients
Midstate Medical Center Current Accepting new patients
Midstate Medical Center CurrentSince Apr 20, 2025 Accepting new patients
Consulting Cardiologists, P.C. Cardiovascular Disease CurrentSince Jul 2, 2007 Accepting new patients
Connecticut Heart Physicians, Inc. Cardiovascular Disease CurrentSince Jul 2, 2007 Accepting new patients
Hallmark Health Medical Associates Inc Past Accepting new patients

Locations

100 Simsbury Rd
Ste 202
Avon, CT 06001
Phone (860) 242-6633

305 Western Blvd
Ste 100
Glastonbury, CT 06033
Phone (860) 525-1532

85 Seymour St
Ste 719
Hartford, CT 06106
Phone (860) 249-9175

85 Seymour St
Hartford, CT 06106
Phone (860) 246-4029

435 Lewis Ave
Meriden, CT 06451
Phone (203) 284-1340

433 S Main St
Ste 109
West Hartford, CT 06110

1060 Day Hill Rd
Ste 203
Windsor, CT 06095
Phone (860) 696-2450

Interoperability endpoints

  • Direct secure messaging: john.granquist.1@6291.direct.athenahealth.com
  • FHIR API: https://api.platform.athenahealth.com/6291/brand/1/csg/1/fhir/r4

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 and National Provider Directory roles.

Hospital & facility affiliations 9

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": "1169942400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1493078400000",
    "number": "1699821892",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "305 WESTERN BLVD",
            "address_2": "SUITE 100",
            "city": "GLASTONBURY",
            "state": "CT",
            "postal_code": "060334380",
            "telephone_number": "860-522-0604",
            "fax_number": "860-659-8077"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "CONSULTING CARDIOLOGISTS, P.C.",
            "address_2": "85 SEYMOUR STREET SUITE 719",
            "city": "HARTFORD",
            "state": "CT",
            "postal_code": "06106",
            "telephone_number": "860-522-1761"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRANQUIST",
        "first_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-28",
        "last_updated": "2017-04-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CT",
            "license": "045097",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Hartford, CT

Sources for this page

Verify at the official NPI Registry.