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

Dr. Devon Elizabeth Singh-Barrett, PHD

Individual provider Clinical Psychologist · NPI 1033391644

Dr. Devon Elizabeth Singh-Barrett, PHD is a Clinical Psychologist in Mercer Island, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007
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

3035 Island Crest Way Ste 110
Mercer Island, WA 98040-2919
Phone: (206) 275-0764
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PY00003858 (WA)

Record details

NPI number1033391644
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedDecember 5, 2007
Last updated in NPPESDecember 5, 2007
Mailing address4051 97th Ave Se, Mercer Island, WA 98040-4235

Other providers in Mercer Island