Active NPI
Michael H Nishi, DDS
- Prosthodontics
- Darien, CT
National Provider Identifier
1275547341
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Prosthodontics
- License
- 08552
- Practice address
- 110 Post Rd
Darien, CT 06820-2931 - Phone
- (203) 655-2453
- Fax
- (203) 656-0353
- NPI assigned
- Jul 27, 2006
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| General Practice Dentistry | 1223G0001X | 08552 | CT | |
| Prosthodontics | 1223P0700X | 08552 | CT | Primary |
Addresses
Primary practice location
110 Post Rd
Darien, CT 06820-2931
Mailing address
110 Post Rd
Darien, CT 06820-2931
Phone (203) 655-2453
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 08552 | CT | MD | Prosthodontist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Dental Sleep Medicine Center for Snoring and Sleep Apnea LLC | Past | Accepting new patients | |
| Alan B Rosenthal,DMD,PC | Past | Accepting new patients |
Organizations & group practices 2
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.
-
- Dentist
- Brooklyn, NY
- NPI 1922542372
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153958400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1275547341",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "110 POST RD",
"city": "DARIEN",
"state": "CT",
"postal_code": "068202931",
"telephone_number": "203-655-2453",
"fax_number": "203-656-0353"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "110 POST RD",
"city": "DARIEN",
"state": "CT",
"postal_code": "068202931",
"telephone_number": "203-655-2453",
"fax_number": "203-656-0353"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NISHI",
"first_name": "MICHAEL",
"middle_name": "H",
"name_prefix": "Dr.",
"credential": "DDS",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-27",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "1223G0001X",
"taxonomy_group": "",
"desc": "Dentist, General Practice",
"state": "CT",
"license": "08552",
"primary": false
},
{
"code": "1223P0700X",
"taxonomy_group": "",
"desc": "Dentist, Prosthodontics",
"state": "CT",
"license": "08552",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Darien, CT
- Deborah Nelson, MS, CDN
- Patricia M Nelson, LCSE
- New Reflections Counseling, P.a.
- Fredric Newman, M.D.
- Jennifer Anne Nielsen, PSYD
- Nola Darien, LLC
- Noroton Dental Associates LLC (Middlesex Gental Group)
- Noroton Presbyterian Church (Noroton Presbyterian Therapy Center)
- Amy Nucera, M.A., CCC-SLP
- Dana Nuzzo, LMSW
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.