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

Dr. Kenneth Mark Derby, PHD

Individual provider Cognitive & Behavioral Psychologist · NPI 1679611420

Dr. Kenneth Mark Derby, PHD is a Cognitive & Behavioral Psychologist in Spokane, Washington. Licensed in Washington. Registered with an NPI since 2007.

Licensed in
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

1124 E 35th Ave
Spokane, WA 99203-3168
Phone: (509) 747-7460
Fax: (509) 323-5965
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 2204 (WA)
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X · Licence 2204 (WA)

Record details

NPI number1679611420
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedFebruary 2, 2007
Last updated in NPPESSeptember 11, 2025
Mailing address1124 E 35th Ave, Spokane, WA 99203-3168

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