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

Dr. David Paul Johnson, PHD

Individual provider Clinical Psychologist · NPI 1346291846

Dr. David Paul Johnson, PHD is a Clinical Psychologist in Iowa City, Iowa. Qualified in 1990, 36 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
36
Licensed in
IA
In the registry since
2006
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

26 E Market St
Iowa City, IA 52245-1742
Phone: (319) 541-1307
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 00665 (IA)

Record details

NPI number1346291846
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 12, 2006
Last updated in NPPESJuly 3, 2026
Certification dateJuly 3, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Iowa City