Active NPI
Michael M. Greenwald, D.D.S.
- General Practice Dentistry
- Wallingford, CT
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Dentistry
- License
- CT 7481
- 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, 2026
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| License | State | Type | Specialty |
|---|---|---|---|
| 041599 | NY | MD | Dentist |
| CT 7481 | CT | MD | General Practice Dentistry |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Onecalltherapy,LLC | Current | 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.
-
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- NPI 1417467879
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.