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

Dr. Karen Deborah Fiester, PHD

Individual provider Clinical Psychologist · NPI 1831119569

Dr. Karen Deborah Fiester, PHD is a Clinical Psychologist in Boulder, Colorado. Qualified in 1980, 46 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Colorado.

Years since qualifying
46
Licensed in
CO
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1113 Spruce St Ste 501
Boulder, CO 80302-4001
Phone: (303) 449-3028
Fax: (303) 938-5005
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 828 (CO)

Record details

NPI number1831119569
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 19, 2006
Last updated in NPPESJuly 9, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Boulder