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

Dr. William David Criddle, PHD

Individual provider Clinical Psychologist · NPI 1386753036

Dr. William David Criddle, PHD is a Clinical Psychologist in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2006
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

411 University St Ste 1200
Seattle, WA 98101-2507
Phone: (206) 624-1552
Fax: (206) 467-0212
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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 330 (WA)

Record details

NPI number1386753036
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 29, 2006
Last updated in NPPESJuly 8, 2007
Mailing address411 University St, Suite 1200, Seattle, WA 98101-2507

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