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

Randall Ray Masterson, MS, CSP

Individual provider Psychologist · NPI 1790056489

Randall Ray Masterson, MS, CSP is a Psychologist in Olney, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2012
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

302 S Kitchell Ave Ste A
Olney, IL 62450-1500
Phone: (618) 392-2725
Fax: (866) 302-0227
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 969847 (IL)

Record details

NPI number1790056489
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , CSP
Sole proprietorYes
NPI enumeratedJanuary 26, 2012
Last updated in NPPESJanuary 26, 2012
Mailing address302 S Kitchell Ave, Suite A, Olney, IL 62450-1500