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Meet our team

Meet our team

Tammy Cooley, senior director, operations

Tammy Cooley serves as program director for the Wyoming Care Management Entity. Tammy lives in Cheyenne, Wyoming with her family and comes to Magellan from Wrap Around Wyoming, Inc., where she served as founder and executive director. Tammy built that program, including developing a team of dedicated parents, practitioners and others who are HFWA-credentialed. Tammy is a nationally credited coach, trainer and facilitator for High Fidelity Wraparound and is passionate about how the process of HFWA can improve the lives of youth and their families. Send email.

Lynn Hamilton, care worker

Lynn brings more than 20 years of experience in the human services field, along with multiple certifications and diplomas, to her role as care worker for the Wyoming Care Management Entity. Lynn lives in Cheyenne with her three sons and is helping raise her six grandchildren. Send email


Shelli Stewart, senior network manager

Shelli Stewart brings over 15 years experience in marketing and training to the Wyoming team. Based in Cheyenne, Shelli started her career in the government sector, and brings a unique perspective to communications in the healthcare industry. Shelli has been personally touched by High Fidelity Wraparound services with the adoption of her youngest child. Shelli holds two bachelor's degrees; the first in Journalism and the second in Legal Studies. Shelli also received a master's degree in organizational management. Shelli and her husband grew up in Wyoming, and are proud to be raising their four children in such a close-knit community. Send email.

Sharon Weber, senior clinical trainer

Sharon Weber serves as the trainer-coach for the Wyoming Care Management Entity. Sharon lives in Laramie, Wyoming and comes to Magellan from Cathedral Home for Children, where she served as community programs director and in many other positions for the past 26 years. Sharon has spearheaded efforts with landmark implications in areas such as peer mediation and improved graduation rates. Her advocacy for children and families has extended to the Wyoming legislature. Sharon has achieved credentialing as a High Fidelity Wraparound facilitator, trainer and coach and is currently working on being credentialed as a Wraparound process mentor. She looks forward to employing her diverse skills, leadership and fervent passion to advance best practices throughout the state to improve the lives of youth and their families in Wyoming. Send email

Angela White, clinical contract advisor

Angela White, LCSW is a native of Shreveport, Louisiana. Angela’s background is in working with individuals living with mental illness at a community mental health center. Since joining Magellan in 2015, she worked with the Louisiana Coordinated System of Care contract before transferring to the WY CME clinical team. Angela is a graduate of Louisiana State University in Baton Rouge, with a master's degree in Social Work. She is a strong proponent of healthy families, which is evident by her efforts in the workplace and at home with her blended family. Angela and her husband Larry have four children and two grandchildren. Send email

Chassity Wiederspahn, senior quality specialist

Chassity has lived in Cheyenne, Wyoming for over 20 years. Chassity has firsthand experience with the High Fidelity Wraparound process as she and her family successfully graduated the program. Chassity’s wish to give back to the community of Cheyenne and desire to assist other families like hers, along with other professional experience, has led to her current role as Care Worker for the Wyoming Care Management Entity. Chassity is the proud mom of two children and is excited to be a part of the team. Send email