WYOMING MEDICAL SOCIETY - Key Persons


Giovannina Anthony

Job Titles:
  • Teton County Representative

Isreal Stewart

Job Titles:
  • Sweetwater County Representative

Jasper James "JJ" Chen

Job Titles:
  • Is a Practicing Psychiatrist in Cheyenne

Kris Schamber

Job Titles:
  • WMS President

Kristina Behringer

Job Titles:
  • Is Practicing Family Medicine Physician in Cheyenne

Kristopher Schamber

Job Titles:
  • Is a Practicing Internist in Sheridan

Maria Cowley

Job Titles:
  • Membership and Finance Director
Maria Cowley has served the Board of Trustees and members since 2006. She provides membership and financial support for the Wyoming Medical Society and several specialty societies. She earned her undergraduate degree at the University of Wyoming. Maria has previous accounting and management experience working for KPMG Accounting firm, Bristol-Myers Squibb, Rose Medical Center and Trilegiant Corporation. Depending on the time of year, you'll usually find Maria at the lake or on a ski hill and enjoying live music or pickleball year round with her husband and two grown boys. If you have a billing question or inquiry regarding your WMS membership it's her friendly voice you will reach.

Matt Mitchell

Job Titles:
  • Is a Practicing Orthopedic Surgeon in Casper

Paul Johnson

Paul Johnson, MD, is an ear, nose and throat physician and surgeon at Ivinson Memorial Hospital in Laramie.

Sheila Bush

Job Titles:
  • Executive Director
Sheila Bush is the executive director for the Wyoming Medical Society and is responsible for the overall management of WMS and its staff. She provides support to the WMS Board of Trustees, serves as the chief lobbyist and advocate for Wyoming's physician voice, and never hesitates to help physicians across WY whenever and wherever she is needed. She is the founder and publisher of Wyoming Medicine magazine and the founder of the Wyoming Leaders in Medicine physician leadership program. She is a graduate of the University of Wyoming, and is highly involved in her local community. Sheila serves on numerous boards in healthcare, policy and the arts, and has been recognized by several organizations for her outstanding leadership service. On weekends you will find Sheila camping, skiing or traveling with her husband and two boys. With nearly two decades in advocacy, Sheila Bush has demonstrated her commitment and dedication to physician interests, and is available for any member regardless of need.

Sierra Gross

Job Titles:
  • Sheridan County Representative

Spencer Weston

Job Titles:
  • Is Practicing Family Medicine Physician in Evanston

Stephen Brown

Job Titles:
  • Is a Child and Adolescent Psychiatrist in Casper

Whitney Harmon - CCO

Job Titles:
  • Communications Director
Whitney Harmon is responsible for developing the WMS marketing and communication strategies, managing strategic partnerships and contracts, and building a digital statewide presence. She is the managing editor for Wyoming Medicine magazine and coordinates event planning for the WMS Annual Meeting and the WLM physician leadership program. Whitney completed her B.A. at the University of Wyoming and her M.S. in Human Environmental Science at the University of Alabama. She enjoys travel and adventure with her husband and three kids more than anything. Prior to joining the WMS team in 2019, Whitney worked for the WY Secretary of State and has always enjoyed serving the great state of Wyoming.