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

Mr. Ronald A Warren, PHD

Individual provider Mental Health Counselor · NPI 1750463386

Mr. Ronald A Warren, PHD is a Mental Health Counselor in San Rafael, California. Registered with an NPI since 2006.

In the registry since
2006
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

555 Northgate Dr Family Service Agency Of Marin
San Rafael, CA 94903-3680
Phone: (415) 491-5700
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 number1750463386
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedOctober 20, 2006
Last updated in NPPESJuly 8, 2007
Mailing address298 Olive Ave, Novato, CA 94945-3431

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