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

Dr. Mary Marth, PSYD

Individual provider Clinical Psychologist · NPI 1831380146

Dr. Mary Marth, PSYD is a Clinical Psychologist in San Leandro, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

2500 Fairmont Drive Guidance Clinic
San Leandro, CA 94578
Phone: (510) 667-3000
Fax: (510) 667-3005
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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 PSY22188 (CA)

Record details

NPI number1831380146
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedAugust 5, 2007
Last updated in NPPESSeptember 26, 2008
Mailing address2500 Fairmont Drive, Guidance Clinic, San Leandro, CA 94578

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