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

Mary Jo Jeffres PHD, LLC

Organization Clinical Psychologist · NPI 1962563361

Mary Jo Jeffres PHD, LLC is a Clinical Psychologist in Riverton, Wyoming. Works from 2 locations. Licensed in Wyoming.

Licensed in
WY
In the registry since
2006
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

103 N 5th St E
Riverton, WY 82501-4402
Phone: (307) 463-0890
Fax: (307) 463-0891
Show map & directions

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

Additional practice locations (1)

  • 500 E. Fremont Avenue, Riverton, WY 82501-4409 — (307) 851-7170

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 421 (WY)

Record details

NPI number1962563361
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mary Jo Jeffres — Owner · (307) 463-0890
NPI enumeratedDecember 12, 2006
Last updated in NPPESJuly 21, 2022
Mailing address103 N 5th St E, Riverton, WY 82501-4402

Other providers in Riverton