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

Dr. Zack I Medoff, PHD

Individual provider Clinical Psychologist · NPI 1194977876

Dr. Zack I Medoff, PHD is a Clinical Psychologist in Napa, California. Licensed in California. Registered with an NPI since 2008.

Licensed in
CA
In the registry since
2008
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

2100 Napa Vallejo Hwy
Napa, CA 94558-6234
Phone: (707) 253-5000
Fax: (707) 253-5513
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY 22239 (CA)

Record details

NPI number1194977876
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedOctober 14, 2008
Last updated in NPPESOctober 14, 2008

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