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

Dr. Thomas Miller Simpson, PHD

Individual provider Clinical Psychologist · NPI 1699784843

Dr. Thomas Miller Simpson, PHD is a Clinical Psychologist in Reston, Virginia. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
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

11363 Sunset Hills Rd
Reston, VA 20190-5205
Phone: (703) 435-7063
Fax: (703) 437-1908
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 0810000913 (VA)

Record details

NPI number1699784843
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 5, 2006
Last updated in NPPESJuly 8, 2007
Mailing address11363 Sunset Hills Rd, Reston, VA 20190-5205

Other providers in Reston