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

Dr. Darien Stephen Fenn, PHD

Individual provider Clinical Psychologist · NPI 1164550224

Dr. Darien Stephen Fenn, PHD is a Clinical Psychologist in Wilsonville, Oregon. Qualified in 1989, 37 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
37
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

23540 SW Gage Rd
Wilsonville, OR 97070-9721
Phone: (503) 320-2503
Fax: (503) 928-5582
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 1083 (OR)

Record details

NPI number1164550224
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 1, 2007
Last updated in NPPESNovember 26, 2017

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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