Active NPI
Mark Joseph Vizioli
- Addiction (Substance Use Disorder) Counselor
- North Hollywood, CA
National Provider Identifier
1861209769
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction (Substance Use Disorder) Counselor
- License
- 18838
- Practice address
- 5335 Craner Ave
North Hollywood, CA 91601-3313 - Phone
- (818) 927-4045
- Fax
- (818) 927-4016
- NPI assigned
- Dec 13, 2024
- 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 |
|---|---|---|---|---|
| Professional Counselor | 101YP2500X | 18838 | CA | |
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | 18838 | CA | Primary |
Addresses
Primary practice location
5335 Craner Ave
North Hollywood, CA 91601-3313
Mailing address
3514 Greenfield Ave
Los Angeles, CA 90034-6102
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 |
|---|---|---|---|
| 18838 | CA | MD | Speech-Language Pathologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1734048000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770940800000",
"number": "1861209769",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3514 GREENFIELD AVE",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900346102"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5335 CRANER AVE",
"city": "NORTH HOLLYWOOD",
"state": "CA",
"postal_code": "916013313",
"telephone_number": "818-927-4045",
"fax_number": "818-927-4016"
}
],
"practiceLocations": [],
"basic": {
"last_name": "VIZIOLI",
"first_name": "MARK",
"middle_name": "JOSEPH",
"name_prefix": "Mr.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2024-12-13",
"last_updated": "2026-02-13",
"certification_date": "2026-02-13",
"status": "A"
},
"taxonomies": [
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "CA",
"license": "18838",
"primary": false
},
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "CA",
"license": "18838",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in North Hollywood, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 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.