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

Katherine Arelene Knaak, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1558698688

Katherine Arelene Knaak, NP is a Psychiatric/Mental Health Nurse Practitioner in Oregon City, Oregon. Practices as a sole proprietor. Licensed in Oregon.

Licensed in
OR
In the registry since
2009
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

998 Library Ct
Oregon City, OR 97045-4041
Phone: (503) 655-8401
Fax: (503) 655-8429
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 082010216N6 (OR)

Record details

NPI number1558698688
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedNovember 10, 2009
Last updated in NPPESNovember 10, 2009

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