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

Dr. Yoanna McDowell, PHD

Individual provider Addiction (Substance Use Disorder) Psychologist · NPI 1851910558

Dr. Yoanna McDowell, PHD is an Addiction (Substance Use Disorder) Psychologist in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2020.

Licensed in
WA
In the registry since
2020
Specialties on file
4
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1660 S Columbian Way
Seattle, WA 98108-1532
Phone: (206) 277-3318
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PY61163935 (WA)
Addiction (Substance Use Disorder) Psychologist Taxonomy 103TA0400X · Licence PY61163935 (WA)
Health Service Psychologist Taxonomy 103TH0100X · Licence PY61163935 (WA)
Group Psychotherapy Psychologist Taxonomy 103TP2701X · Licence PY61163935 (WA)

Record details

NPI number1851910558
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 13, 2020
Last updated in NPPESJune 1, 2023
Certification dateJune 1, 2023

Other providers in Seattle