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

Dr. Mark David Delguercio, PSYD

Individual provider Psychologist · NPI 1558914895

Dr. Mark David Delguercio, PSYD is a Psychologist in San Francisco, California. Practices as a sole proprietor. Registered with an NPI since 2019.

In the registry since
2019
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

4150 Clement St
San Francisco, CA 94121-1563
Phone: (415) 221-4810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X

Record details

NPI number1558914895
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedJuly 16, 2019
Last updated in NPPESJuly 26, 2019

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