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

Mark C Johnson, PHD

Individual provider Clinical Psychologist · NPI 1801961214

Mark C Johnson, PHD is a Clinical Psychologist in White River Junction, Vermont. Licensed in Vermont. Registered with an NPI since 2006.

Licensed in
VT
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

2456 Christian St Ste 204
White River Junction, VT 05001-1222
Phone: (802) 296-3030
Fax: (802) 296-8407
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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 280 (VT)

Record details

NPI number1801961214
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedNovember 21, 2006
Last updated in NPPESJuly 8, 2007
Mailing address2456 Christian Street, Suite 204, White River Junction, VT 05001-1222

Other providers in White River Junction