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

Diane Janice Willis, PHD

Individual provider Clinical Child & Adolescent Psychologist · NPI 1306016118

Diane Janice Willis, PHD is a Clinical Child & Adolescent Psychologist in Norman, Oklahoma. Licensed in Oklahoma. Registered with an NPI since 2008.

Licensed in
OK
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

4520 Ridgeline Dr
Norman, OK 73072-1729
Phone: (405) 364-9091
Show map & directions

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

Specialties & licences

Clinical Child & Adolescent Psychologist (primary) Taxonomy 103TC2200X · Licence 164 (OK)

Record details

NPI number1306016118
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedMarch 7, 2008
Last updated in NPPESMarch 7, 2008