Matthew J Iwinski, D.D.S.

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

08269 Issued in CT

Practice address

45 Pine St
Ste 1a
New Canaan, CT 06840-5409

Phone

(203) 966-5606

Fax

(203) 966-3239

NPI assigned

Jun 1, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1117584000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1275535387",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "45 PINE ST",
            "address_2": "STE 1A",
            "city": "NEW CANAAN",
            "state": "CT",
            "postal_code": "068405409",
            "telephone_number": "203-966-5606",
            "fax_number": "203-966-3239"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "45 PINE ST",
            "address_2": "STE 1A",
            "city": "NEW CANAAN",
            "state": "CT",
            "postal_code": "068405409",
            "telephone_number": "203-966-5606",
            "fax_number": "203-966-3239"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "IWINSKI",
        "first_name": "MATTHEW",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "D.D.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CT",
            "license": "08269",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Elaine Hriston-Zech, RPT
• Maria Ieni, MD
• Integrative Medical Consulting LLC
• William Hudson Introcaso, DMD.
• Avraham Z Isseroff, MD
• Jenny Grace Jablonka, LMHC, LPC
• Janet Mentore Lee, PH.D., PLLC
• Jerri Jensen, M.D.
• Wooin Jeon, RPH
• Isabella Jordan, RN-MN, IBCLC

• General Practice Dentistry in New Canaan, CT
• Providers in New Canaan, CT by specialty
• General Practice Dentistry in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.