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

Dr. Dorothy Nell Knapp, PHD

Individual provider Clinical Psychologist · NPI 1346682390

Dr. Dorothy Nell Knapp, PHD is a Clinical Psychologist in Tualatin, Oregon. Licensed in Oregon. Registered with an NPI since 2013.

Licensed in
OR
In the registry since
2013
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

19250 SW 65th Ave Ste 300
Tualatin, OR 97062-7452
Phone: (503) 692-1242
Fax: (503) 691-3615
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 942 (OR)

Record details

NPI number1346682390
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 18, 2013
Last updated in NPPESJuly 18, 2013

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