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

Dr. Ronald J Ridder, PHD

Individual provider Clinical Psychologist · NPI 1861463440

Dr. Ronald J Ridder, PHD is a Clinical Psychologist in Cedar Rapids, Iowa. Licensed in Iowa and Nebraska. Registered with an NPI since 2006.

Licensed in
IA, NE
In the registry since
2006
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.

See every abbreviation used in this directory →

Practice location Address checks out

701 10th St SE
Cedar Rapids, IA 52403-1251
Phone: (319) 369-4777
Fax: (319) 369-4694
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 080046 (IA)
Clinical Psychologist Taxonomy 103TC0700X · Licence PHD338 (NE)

Record details

NPI number1861463440
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 31, 2006
Last updated in NPPESDecember 15, 2015
Mailing address701 10th St Se, Cedar Rapids, IA 52403-1251

Other providers in Cedar Rapids