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

Dr. Gary Alan Walco, PHD

Individual provider Clinical Child & Adolescent Psychologist · NPI 1821040700

Dr. Gary Alan Walco, PHD is a Clinical Child & Adolescent Psychologist in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
Specialties on file
3
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

4800 Sand Point Way NE Seattle Children's Hospital
Seattle, WA 98105
Phone: (206) 987-2704
Fax: (206) 987-3935
Show map & directions

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

Specialties & licences

Health Service Psychologist (primary) Taxonomy 103TH0100X · Licence 60066173 (WA)
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X · Licence PY 60066173 (WA)
Health Psychologist Taxonomy 103TH0004X · Licence PY 60066173 (WA)

Record details

NPI number1821040700
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESJuly 17, 2018

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