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

Dr. David Allen Oas, PHD

Individual provider Forensic Psychologist · NPI 1427251727

Dr. David Allen Oas, PHD is a Forensic Psychologist in Ashland, Oregon. Practices as a sole proprietor. Licensed in Oregon.

Licensed in
OR
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

508 Tucker St
Ashland, OR 97520-1582
Phone: (541) 482-8506
Fax: (541) 488-9373
Show map & directions

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

Specialties & licences

Forensic Psychologist (primary) Taxonomy 103TF0200X · Licence 0237 (OR)

Record details

NPI number1427251727
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJune 6, 2007
Last updated in NPPESJuly 8, 2007