Active NPI
Stephen Carl Winston, PH.D.
- Clinical Psychologist
- Agoura Hills, CA
National Provider Identifier
1730204884
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 14856
- Practice address
- 5923 Kanan Rd
Agoura Hills, CA 91301-1688 - Phone
- (310) 382-7556
- Fax
- (310) 455-1416
- NPI assigned
- Mar 20, 2007
- 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 14856 | CA | Primary |
Addresses
Primary practice location
5923 Kanan Rd
Agoura Hills, CA 91301-1688
Mailing address
PO Box 1410
Topanga, CA 90290-1410
Phone (310) 382-7556
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Psychologist
- Education
- Other, 1990
- Medicare assignment
- May accept Medicare assignment
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
5923 Kanan Rd
Agoura, CA 91301-1688
Phone (310) 382-7556
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Philosophy
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Broad Horizons Marriage and Family Counseling, Prof. Corp. | Psychologist | Current | Accepting new patients |
Locations
5923 Kanan Rd
Agoura Hills, CA 91301
Phone (310) 382-7556
610 Santa Monica Blvd
Ste 214
Santa Monica, CA 90401
Phone (310) 382-7556
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Agoura Hills, CA
- NPI 1144461690
Psychologist
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Inglewood, CA
- NPI 1629445051
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1174348800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780617600000",
"number": "1730204884",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 1410",
"city": "TOPANGA",
"state": "CA",
"postal_code": "902901410",
"telephone_number": "310-382-7556",
"fax_number": "310-455-1416"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5923 KANAN RD",
"city": "AGOURA HILLS",
"state": "CA",
"postal_code": "913011688",
"telephone_number": "310-382-7556",
"fax_number": "310-455-1416"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WINSTON",
"first_name": "STEPHEN",
"middle_name": "CARL",
"credential": "PH.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-03-20",
"last_updated": "2026-06-05",
"certification_date": "2026-06-05",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "CA",
"license": "14856",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Agoura Hills, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.