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

Dr. Adam A Nelson, PHD

Individual provider Clinical Neuropsychologist · NPI 1295933968

Dr. Adam A Nelson, PHD is a Clinical Psychologist in Clackamas, Oregon. Qualified in 2005, 21 years ago. Practices with Kaiser Foundation Health Plan of the Northwest, a 1,811-clinician group and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
21
Licensed in
CA, WA
In the registry since
2007
Specialties on file
2
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

9800 SE Sunnyside Rd
Clackamas, OR 97015-9750
Phone: (503) 813-2000
Show map & directions

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

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence 60081984 (WA)
Clinical Neuropsychologist Taxonomy 103G00000X · Licence 21569 (CA)

Record details

NPI number1295933968
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 4, 2007
Last updated in NPPESDecember 28, 2021
Certification dateDecember 28, 2021
Mailing address9800 Se Sunnyside Rd, Clackamas, OR 97015-9750

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Kaiser Foundation Health Plan Of The Northwest — 1811 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare