Individual provider Active NPI

Michael M. Greenwald, D.D.S.

  • General Practice Dentistry
  • Wallingford, CT
National Provider Identifier
1629103486
Registry record updated May 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
CT 7481 Issued in CT
Practice address
850 North Main St. Extension
Building 2, Suite 1-D
Wallingford, CT 06492-4214
Phone
(203) 265-3005
NPI assigned
Feb 22, 2007
Last updated
May 8, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on May 8, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dentist 122300000X 041599 NY
General Practice Dentistry 1223G0001X CT 7481 CT Primary

Addresses

Primary practice location

850 North Main St. Extension
Building 2, Suite 1-D
Wallingford, CT 06492-4214

Mailing address

850 North Main St. Extension
Building 2, Suite 1-D
Wallingford, CT 06492-4214
Phone (203) 265-3005

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

Care Compare profile

Medicare Care Compare
Specialty
Dentist
Education
Georgetown University School of Medicine, 1987
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

10845 Griffith Peak Dr
Suite 2
Las Vegas, NV 89135-1555

1135 Morton St
Mattapan, MA 02126-2834

1461 Crestview Rd
Redlands, CA 92374-6341

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
041599NYMDDentist
CT 7481CTMDGeneral Practice Dentistry

Practice roles

OrganizationSpecialtyStatusNew patients
Onecalltherapy,LLC CurrentSince Dec 2, 2017 Accepting new patients

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1172102400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778198400000",
    "number": "1629103486",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "850 NORTH MAIN ST. EXTENSION",
            "address_2": "BUILDING 2, SUITE 1-D",
            "city": "WALLINGFORD",
            "state": "CT",
            "postal_code": "064924214",
            "telephone_number": "203-265-3005"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "850 NORTH MAIN ST. EXTENSION",
            "address_2": "BUILDING 2, SUITE 1-D",
            "city": "WALLINGFORD",
            "state": "CT",
            "postal_code": "064924214",
            "telephone_number": "203-265-3005"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENWALD",
        "first_name": "MICHAEL",
        "middle_name": "M.",
        "name_prefix": "Dr.",
        "credential": "D.D.S.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-02-22",
        "last_updated": "2026-05-08",
        "certification_date": "2026-05-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "NY",
            "license": "041599",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CT",
            "license": "CT  7481",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Wallingford, CT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.