Active NPI
Seymour Klein, MDW, LCSW
- Marriage & Family Therapist
- Livingston, NJ
National Provider Identifier
1902870900
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Marriage & Family Therapist
- License
- 37F100003400
- Practice address
- 68 N Mitchell Ave
Livingston, NJ 07039-2144 - Phone
- (973) 994-2450
- Fax
- (973) 994-7949
- NPI assigned
- Feb 15, 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 44SC00083100 | NJ | |
| Clinical Social Worker | 1041C0700X | PR022930-1 | ND | |
| Marriage & Family Therapist | 106H00000X | 37F100003400 | NJ | Primary |
Addresses
Primary practice location
68 N Mitchell Ave
Livingston, NJ 07039-2144
Mailing address
68 N Mitchell Ave
Livingston, NJ 07039-2144
Phone (973) 994-2450
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)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PR022930-1 | ND | MD | Clinical Social Worker |
| 44SC00083100 | NJ | MD | Clinical Social Worker |
| 37F100003400 | NJ | MD | Marriage & Family Therapist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1139961600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1902870900",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "68 N MITCHELL AVE",
"city": "LIVINGSTON",
"state": "NJ",
"postal_code": "070392144",
"telephone_number": "973-994-2450",
"fax_number": "973-994-7949"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "68 N MITCHELL AVE",
"city": "LIVINGSTON",
"state": "NJ",
"postal_code": "070392144",
"telephone_number": "973-994-2450",
"fax_number": "973-994-7949"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KLEIN",
"first_name": "SEYMOUR",
"name_prefix": "Mr.",
"credential": "MDW, LCSW",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-15",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "NJ",
"license": "44SC00083100",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "ND",
"license": "PR022930-1",
"primary": false
},
{
"code": "106H00000X",
"taxonomy_group": "",
"desc": "Marriage & Family Therapist",
"state": "NJ",
"license": "37F100003400",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Livingston, NJ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.