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

Dr. Thomas Thaddeus Olkowski, PHD

Individual provider Clinical Psychologist · NPI 1598960171

Dr. Thomas Thaddeus Olkowski, PHD is a Clinical Psychologist in Centennial, Colorado. Licensed in Colorado. Registered with an NPI since 2007.

Licensed in
CO
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

7500 E Arapahoe Rd Ste 325
Centennial, CO 80112
Phone: (303) 759-8539
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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 548 (CO)

Record details

NPI number1598960171
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 15, 2007
Last updated in NPPESJuly 8, 2007
Mailing address7500 E Arapahoe Rd, Suite 325, Centennial, CO 80112

Other providers in Centennial