Individual provider Active NPI

Catherine Jeongeun Choi

  • Gastroenterology Physician
  • New Haven, CT
National Provider Identifier
1437654142
Registry record updated May 15, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
21307017 Issued in CT
Practice address
20 York St
New Haven, CT 06510-3220
Phone
(203) 688-4242
NPI assigned
Mar 26, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 15, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 21307017 CT Primary

Addresses

Primary practice location

20 York St
New Haven, CT 06510-3220

Mailing address

20 York St
New Haven, CT 06510-3220
Phone (203) 688-4242

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
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 1

Enrollment IDStateProvider typePAC IDDetails
I20250917004575 CT Practitioner - Gastroenterology 7517400393 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
State University of New York at Buffalo School of Medicine, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Connecticut Gi PLLCGroup PAC ID 9830110758, 243 clinicians

Practice addresses (Care Compare)

1 Liberty SQ
New Britain, CT 06051-2637
Phone (860) 229-9688

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Upper gastrointestinal (GI) endoscopy for acid reflux14

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
21307017CTMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Connecticut Gi PLLC Gastroenterology CurrentSince Sep 25, 2025 Accepting new patients
Litchfield County Gastroenterology Associates, LLC Gastroenterology Past Accepting new patients
Rutgers New Jersey Medical School Past Accepting new patients

Locations

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

1 Liberty Sq
Fl 2
New Britain, CT 06051
Phone (860) 229-9688

1 Liberty Sq
New Britain, CT 06051
Phone (860) 229-2807

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

Interoperability endpoints

  • Direct secure messaging: cchoi659891@direct.ynhh.org

Organizations & group practices 3

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 4

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": "1522022400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1715731200000",
    "number": "1437654142",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-4242"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20 YORK ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103220",
            "telephone_number": "203-688-4242"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHOI",
        "first_name": "CATHERINE",
        "middle_name": "JEONGEUN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-03-26",
        "last_updated": "2024-05-15",
        "certification_date": "2024-05-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CT",
            "license": "21307017",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Haven, CT

Sources for this page

Verify at the official NPI Registry.