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

Mark Edward Ruehl, PHD

Individual provider Clinical Psychologist · NPI 1679604698

Mark Edward Ruehl, PHD is a Clinical Psychologist in Oak Park, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
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

1010 Lake St Ste 601
Oak Park, IL 60301-1147
Phone: (708) 848-4127
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X (IL)

Record details

NPI number1679604698
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 8, 2007
Last updated in NPPESOctober 5, 2007
Mailing address723 N Cuyler Ave, Oak Park, IL 60302-1704

Other providers in Oak Park