NPIMap

Individual provider Active NPI

Colin Thomas Swales, MD

  • Internal Medicine Physician
  • Hartford, CT
National Provider Identifier
1386621464
Registry record updated Sep 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
048589 Issued in CT
Practice address
85 Seymour St
Suite 1000
Hartford, CT 06106-5501
Phone
(860) 246-2571
Fax
(860) 246-3691
NPI assigned
Dec 29, 2005
Last updated
Sep 21, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 21, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 048589 CT Primary
Gastroenterology Physician 207RG0100X 048589 CT
Transplant Hepatology Physician 207RT0003X 048589 CT

Addresses

Primary practice location

85 Seymour St
Suite 1000
Hartford, CT 06106-5501

Mailing address

2139 Silas Deane Hwy
Rocky Hill, CT 06067-2336
Phone (860) 257-4131

Other practice location 1

320 Pomfret St
Putnam, CT 06260-1836
Phone (860) 928-6541

Other identifiers 1

IdentifierTypeStateIssuer
003135317MedicaidCT

Other names 1

  • Dr. Colin Swales Former name

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
I20100810000850 CT Practitioner - Gastroenterology 1355373853 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
University of Massachusetts Medical School, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Connecticut Gi PLLCGroup PAC ID 9830110758, 243 clinicians
Hartford HospitalGroup PAC ID 2567366016, shared by 6 NPIs, 1,040 clinicians

Practice addresses (Care Compare)

320 Pomfret St
Putnam, CT 06260-1836
Phone (860) 963-6371

353 Main St
Manchester, CT 06040-4145
Phone (860) 545-4219

80 Seymour St
Hartford, CT 06102-8000

85 Seymour St
Suite 1000
Hartford, CT 06106-5529
Phone (860) 246-2571

Hospital & facility affiliations

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
90.42 of 100Reported as group
Quality
83.36
Promoting interoperability
100
Improvement activities
40
Cost
75.9

Merit-based Incentive Payment System (MIPS)

Final score
91.99 of 100Reported as group
Quality
89.16
Promoting interoperability
100
Improvement activities
40
Cost
78.45

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy80
Upper gastrointestinal (GI) endoscopy for acid reflux72

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
048589CTMDTransplant Hepatology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Connecticut Gi PLLC Internal Medicine CurrentSince Jul 1, 2010 Accepting new patients
Hartford Healthcare Medical Group Specialists, PLLC CurrentSince Jan 18, 2021 Accepting new patients
Hartford Healthcare Medical Group Specialists LLC CurrentSince Jan 18, 2021 Accepting new patients
Hartford Hospital Internal Medicine CurrentSince Jul 15, 2010 Accepting new patients
Hartford Hospital CurrentSince Jul 15, 2010 Accepting new patients
Nashoba Valley Healthcare Group Inc Internal Medicine PastSince Jun 1, 2010 Accepting new patients
Steward Medical Group, Inc Past Accepting new patients
Litchfield County Gastroenterology Associates, LLC Gastroenterology Past Accepting new patients

Locations

85 Seymour St
Ste 1000
Hartford, CT 06106
Phone (860) 246-2571

320 Pomfret St
Putnam, CT 06260
Phone (860) 963-6331

30 Waterchase Dr
Rocky Hill, CT 06067
Phone (860) 257-4131

1244 Storrs Rd
Storrs Mansfield, CT 06268
Phone (860) 724-2579

Interoperability endpoints

  • Direct secure messaging: colin.swales@xdr.hhchealthdirect.org
  • FHIR API: https://api.platform.athenahealth.com/958/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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 10

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": "1135814400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789948800000",
    "number": "1386621464",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2139 SILAS DEANE HWY",
            "city": "ROCKY HILL",
            "state": "CT",
            "postal_code": "060672336",
            "telephone_number": "860-257-4131",
            "fax_number": "860-257-4519"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "85 SEYMOUR ST",
            "address_2": "SUITE 1000",
            "city": "HARTFORD",
            "state": "CT",
            "postal_code": "061065501",
            "telephone_number": "860-246-2571",
            "fax_number": "860-246-3691"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "320 Pomfret St",
            "address_purpose": "LOCATION",
            "city": "Putnam",
            "state": "CT",
            "postal_code": "062601836",
            "country_code": "US",
            "telephone_number": "860-928-6541",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SWALES",
        "first_name": "COLIN",
        "middle_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-29",
        "last_updated": "2026-09-21",
        "certification_date": "2026-09-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CT",
            "license": "048589",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CT",
            "license": "048589",
            "primary": false
        },
        {
            "code": "207RT0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Transplant Hepatology",
            "state": "CT",
            "license": "048589",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "003135317",
            "state": "CT"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "COLIN",
            "last_name": "SWALES",
            "prefix": "DR.",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Hartford, CT

Sources for this page

Verify at the official NPI Registry.