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

Dr. Mark Holland, PSYD

Individual provider Clinical Psychologist · NPI 1265629430

Dr. Mark Holland, PSYD is a Clinical Psychologist in Casper, Wyoming. Practices as a sole proprietor. Licensed in Wyoming.

Licensed in
WY
In the registry since
2007
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

2435 King Blvd Ste 313
Casper, WY 82604-3166
Phone: (307) 462-4876
Fax: (307) 337-3492
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 544 (WY)

Record details

NPI number1265629430
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedOctober 1, 2007
Last updated in NPPESAugust 21, 2014

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