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

Sibyl Rae Cornell Hewitt, PHD

Individual provider Clinical Psychologist · NPI 1831738863

Sibyl Rae Cornell Hewitt, PHD is a Clinical Psychologist in Boulder, Colorado. Qualified in 2023, 3 years ago. Licensed in Colorado.

Years since qualifying
3
Licensed in
CO
In the registry since
2019
Specialties on file
2
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

777 29th St Ste 500
Boulder, CO 80303-2357
Phone: (720) 551-8074
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

Psychologist (primary) Taxonomy 103T00000X · Licence PSY.0006814 (CO)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY.0006814 (CO)

Record details

NPI number1831738863
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 20, 2019
Last updated in NPPESApril 27, 2026
Certification dateApril 27, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

Other providers in Boulder