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
Mailing address4520 Ridgeline Dr, Norman, OK 73072-1729