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

Dr. Mark Held, PHD

Individual provider Psychologist · NPI 1437547940

Dr. Mark Held, PHD is a Clinical Psychologist in San Francisco, California. Qualified in 2013, 13 years ago. Practices with County of Santa Clara, a 993-clinician group and accepts Medicare assignment.

Years since qualifying
13
In the registry since
2015
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

459 Fulton St Ste 107
San Francisco, CA 94102-4318
Phone: (415) 579-6964
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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 number1437547940
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 6, 2015
Last updated in NPPESJanuary 6, 2015

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice County Of Santa Clara — 993 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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