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

Dr. Julie Marie Mastnak, PHD

Individual provider Clinical Psychologist · NPI 1962685826

Dr. Julie Marie Mastnak, PHD is a Clinical Psychologist in Saint Louis, Missouri. Licensed in Missouri. Registered with an NPI since 2007.

Licensed in
MO
In the registry since
2007
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

#1 Jefferson Barracks Drive Veterans Affairs Medical Center - Jb Division
Saint Louis, MO 63125
Phone: (314) 652-4100
Fax: (314) 845-5016
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 2006035362 (MO)

Record details

NPI number1962685826
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 13, 2007
Last updated in NPPESDecember 13, 2007

Other providers in Saint Louis