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

Dr. Mark D. Mosk, PHD

Individual provider Clinical Psychologist · NPI 1407362189

Dr. Mark D. Mosk, PHD is a Clinical Psychologist in San Mateo, California. Qualified in 1982, 44 years ago. Practices as a sole proprietor, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and Illinois.

Years since qualifying
44
Licensed in
CA, IL
In the registry since
2017
Specialties on file
2
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

226 De Anza Blvd
San Mateo, CA 94402-3913
Phone: (650) 999-0220
Fax: (855) 999-0220
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 678 Lotus Pl, Highland Park, IL 60035-1227 — (847) 652-6565

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 71006089 (IL)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY8865 (CA)

Record details

NPI number1407362189
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedDecember 18, 2017
Last updated in NPPESFebruary 4, 2026
Certification dateFebruary 4, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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