Active NPI
Karen Lynne Matulis
- Addiction (Substance Use Disorder) Counselor
- Hawthorne, CA
National Provider Identifier
1255843702
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Addiction (Substance Use Disorder) Counselor
- License
- 12597-R
- Practice address
- 2501 W El Segundo Blvd
Hawthorne, CA 90250-3317 - Phone
- (323) 754-2816
- Fax
- (323) 754-2828
- NPI assigned
- Oct 24, 2017
- Sex
- Female
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | 12597-R | CA | Primary |
Addresses
Primary practice location
2501 W El Segundo Blvd
Hawthorne, CA 90250-3317
Mailing address
2501 W El Segundo Blvd
Hawthorne, CA 90250-3317
Phone (323) 754-2816
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 |
|---|---|---|---|
| 12597-R | CA | MD | Addiction (Substance Use Disorder) Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1508803200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788652800000",
"number": "1255843702",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2501 W EL SEGUNDO BLVD",
"city": "HAWTHORNE",
"state": "CA",
"postal_code": "902503317",
"telephone_number": "323-754-2816",
"fax_number": "323-754-2828"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2501 W EL SEGUNDO BLVD",
"city": "HAWTHORNE",
"state": "CA",
"postal_code": "902503317",
"telephone_number": "323-754-2816",
"fax_number": "323-754-2828"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MATULIS",
"first_name": "KAREN",
"middle_name": "LYNNE",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2017-10-24",
"last_updated": "2026-09-06",
"status": "A"
},
"taxonomies": [
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": "CA",
"license": "12597-R",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Hawthorne, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 6, 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.