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

Stephen Marks, PHD

Individual provider Mental Health Counselor · NPI 1295270676

Stephen Marks, PHD is a Mental Health Counselor in San Rafael, California. Registered with an NPI since 2016.

In the registry since
2016
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

900 Fifth Ave Ste 150
San Rafael, CA 94901
Phone: (415) 457-6964
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1295270676
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 21, 2016
Last updated in NPPESApril 1, 2022
Certification dateApril 1, 2022

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