Active NPI
Kenneth John Kopczynski Jr.
- Registered Nurse
- Central Islip, NY
National Provider Identifier
1427920164
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Registered Nurse
- License
- 774966-01
- Practice address
- 159 Carleton Ave
Central Islip, NY 11722-4172 - Phone
- (631) 650-2510
- NPI assigned
- Sep 22, 2025
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Registered Nurse | 163W00000X | 774966-01 | NY | Primary |
Addresses
Primary practice location
159 Carleton Ave
Central Islip, NY 11722-4172
Mailing address
38 Orchard St
Hauppauge, NY 11788-4920
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 |
|---|---|---|---|
| 774966-01 | NY | MD | Registered Nurse |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1758499200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1758844800000",
"number": "1427920164",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "38 ORCHARD ST",
"city": "HAUPPAUGE",
"state": "NY",
"postal_code": "117884920"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "159 CARLETON AVE",
"city": "CENTRAL ISLIP",
"state": "NY",
"postal_code": "117224172",
"telephone_number": "631-650-2510"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KOPCZYNSKI",
"first_name": "KENNETH",
"middle_name": "JOHN",
"name_suffix": "Jr.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2025-09-22",
"last_updated": "2025-09-26",
"certification_date": "2025-09-26",
"status": "A"
},
"taxonomies": [
{
"code": "163W00000X",
"taxonomy_group": "",
"desc": "Registered Nurse",
"state": "NY",
"license": "774966-01",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Central Islip, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 26, 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.