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

John Halvorson, PHD

Individual provider Clinical Psychologist · NPI 1780660670

John Halvorson, PHD is a Clinical Psychologist in Grand Junction, Colorado. Licensed in Colorado. Registered with an NPI since 2005.

Licensed in
CO
In the registry since
2005
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

1160 Patterson Rd
Grand Junction, CO 81506-8275
Phone: (970) 244-2800
Fax: (970) 255-6291
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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 511 (CO)

Record details

NPI number1780660670
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 21, 2005
Last updated in NPPESNovember 20, 2007
Mailing addressPo Box 62, Grand Junction, CO 81502-0062

Other providers in Grand Junction