Active NPI
Walker Elton Marsh Jr., PHD LMFT
- Addiction (Substance Use Disorder) Counselor
- Slidell, LA
National Provider Identifier
1992895635
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction (Substance Use Disorder) Counselor
- License
- MFT-345
- Practice address
- 85 Whisperwood Blvd
Suite 2C
Slidell, LA 70458-1136 - Phone
- (985) 661-0560
- Fax
- (985) 781-5395
- NPI assigned
- Oct 13, 2006
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | MFT-345 | LA | Primary |
| Mental Health Counselor | 101YM0800X | MFT-345 | LA | |
| Pastoral Counselor | 101YP1600X | LA | ||
| Marriage & Family Therapist | 106H00000X | MFT-345 | LA |
Addresses
Primary practice location
85 Whisperwood Blvd
Suite 2C
Slidell, LA 70458-1136
Mailing address
85 Whisperwood Blvd
Suite 2C
Slidell, LA 70458-1136
Phone (985) 661-0560
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 |
|---|---|---|---|
| MFT-345 | LA | MD | Addiction (Substance Use Disorder) Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1160697600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1992895635",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "85 WHISPERWOOD BLVD",
"address_2": "SUITE 2C",
"city": "SLIDELL",
"state": "LA",
"postal_code": "704581136",
"telephone_number": "985-661-0560",
"fax_number": "985-781-5395"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "85 WHISPERWOOD BLVD",
"address_2": "SUITE 2C",
"city": "SLIDELL",
"state": "LA",
"postal_code": "704581136",
"telephone_number": "985-661-0560",
"fax_number": "985-781-5395"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MARSH",
"first_name": "WALKER",
"middle_name": "ELTON",
"name_prefix": "Dr.",
"name_suffix": "Jr.",
"credential": "PHD LMFT",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-10-13",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "LA",
"license": "MFT-345",
"primary": true
},
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "LA",
"license": "MFT-345",
"primary": false
},
{
"code": "101YP1600X",
"taxonomy_group": "",
"desc": "Counselor, Pastoral",
"state": "LA",
"license": null,
"primary": false
},
{
"code": "106H00000X",
"taxonomy_group": "",
"desc": "Marriage & Family Therapist",
"state": "LA",
"license": "MFT-345",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Slidell, LA
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.