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

Colleen O Dillon, PHD

Individual provider Clinical Child & Adolescent Psychologist · NPI 1588110944

Colleen O Dillon, PHD is a Clinical Child & Adolescent Psychologist in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2016
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

3417 Evanston Ave N Ste 408
Seattle, WA 98103-8969
Phone: (206) 769-8580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PY60116578 (WA)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence PY60116578 (WA)

Record details

NPI number1588110944
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 26, 2016
Last updated in NPPESOctober 27, 2022
Certification dateOctober 27, 2022
Mailing address3417 Evanston Ave N Ste 408, Seattle, WA 98103-8969

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