Individual provider Active NPI

Hans Christian Contreras-Ayala

  • General Practice Dentistry
  • North Haven, CT
National Provider Identifier
1568047298
Registry record updated Sep 15, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
13334 Issued in CT
Practice address
21 Washington Ave Ste C
North Haven, CT 06473-2368
Phone
(203) 239-2356
Fax
(203) 239-3985
NPI assigned
Mar 15, 2021
Last updated
Sep 15, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 15, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Dentistry 1223G0001X 13334 CT Primary
Student in an Organized Health Care Education/Training Program 390200000X 13089 CT

Addresses

Primary practice location

21 Washington Ave Ste C
North Haven, CT 06473-2368

Mailing address

21 Washington Ave Ste C
North Haven, CT 06473-2368
Phone (203) 239-2356

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address hcontrerasayala45388@direct.med.uchc.edu

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: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210730000621 CT Order and Referring Only - DentistPractitioner - Dentist 1153724976

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

NPI Registry JSON

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

{
    "created_epoch": "1615766400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789430400000",
    "number": "1568047298",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21 WASHINGTON AVE STE C",
            "city": "NORTH HAVEN",
            "state": "CT",
            "postal_code": "064732368",
            "telephone_number": "203-239-2356",
            "fax_number": "203-239-3985"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21 WASHINGTON AVE STE C",
            "city": "NORTH HAVEN",
            "state": "CT",
            "postal_code": "064732368",
            "telephone_number": "203-239-2356",
            "fax_number": "203-239-3985"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CONTRERAS-AYALA",
        "first_name": "HANS",
        "middle_name": "CHRISTIAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-15",
        "last_updated": "2026-09-15",
        "certification_date": "2026-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CT",
            "license": "13334",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "CT",
            "license": "13089",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hcontrerasayala45388@direct.med.uchc.edu",
            "affiliation": "N",
            "address_1": "263 Farmington Ave",
            "city": "Farmington",
            "state": "CT",
            "country_code": "US",
            "postal_code": "060300001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in North Haven, CT

Sources for this page

Verify at the official NPI Registry.