Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Stephen Carl Winston, PHD

Individual provider Clinical Psychologist · NPI 1730204884

Stephen Carl Winston, PHD is a Clinical Psychologist in Agoura Hills, California. Qualified in 1990, 36 years ago. Practices as a sole proprietor and offers telehealth. Licensed in California.

Years since qualifying
36
Licensed in
CA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

5923 Kanan Rd
Agoura Hills, CA 91301-1688
Phone: (310) 382-7556
Fax: (310) 455-1416
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 14856 (CA)

Record details

NPI number1730204884
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 20, 2007
Last updated in NPPESJune 5, 2026
Certification dateJune 5, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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