Active NPI
Joseph Andrew Klawsnik, PHD
- Psychologist
- Canton, MA
National Provider Identifier
1346735321
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- 2508-PR
- Practice address
- 2184 Washington St
Canton, MA 02021-1145 - Phone
- (781) 828-0784
- Fax
- (781) 828-0784
- NPI assigned
- Jun 22, 2018
- 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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | 2508-PR | MA | Primary |
Addresses
Primary practice location
2184 Washington St
Canton, MA 02021-1145
Mailing address
24 High St
Canton, MA 02021-3609
Phone (781) 828-0784
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
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2508-PR | MA | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1529625600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789862400000",
"number": "1346735321",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "24 HIGH ST",
"city": "CANTON",
"state": "MA",
"postal_code": "020213609",
"telephone_number": "781-828-0784",
"fax_number": "781-828-0784"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2184 WASHINGTON ST",
"city": "CANTON",
"state": "MA",
"postal_code": "020211145",
"telephone_number": "781-828-0784",
"fax_number": "781-828-0784"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KLAWSNIK",
"first_name": "JOSEPH",
"middle_name": "ANDREW",
"credential": "PHD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2018-06-22",
"last_updated": "2026-09-20",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "MA",
"license": "2508-PR",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Canton, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.