About: Leadership Team

John I. Mayes, LCSW, CADC

President & CEO

John Mayes was appointed President and CEO of Trilogy in January 2006. He came to Trilogy from Thresholds, where he rose from Program Coordinator to Associate Director. At the time of his departure, he managed most of the agency’s programs on Chicago’s South and West sides and the Near-West suburbs. During Mayes’ tenure at Trilogy, he has focused on developing community partnerships to help bridge funding and service gaps and ensure that barriers to primary and behavioral healthcare are reduced or eliminated for our clients on their path of recovery. Through these partnerships and diversified funding, Trilogy has been able to create a nationally recognized Integrated Healthcare program, a 365 days–a-year Peer-to-Peer Drop-In Center for clients and those who are without entitlements, on site targeted as well as routine HIV testing and counseling within the Drop-In Center, and an evidence-based Family Psycho-education Program. On July 1, 2012, under Mayes’ leadership and as an expansion of Trilogy’s health and wellness initiative, Trilogy became a Smoke-Free Campus and in November of the same year Trilogy was named one of Chicago Tribune’s 2012 Top Workplaces. Mayes is a Licensed Clinical Social Worker and Certified Alcohol and Other Drug Abuse Counselor (CADC). He earned his Master’s Degree in Social Work at the University of Illinois at Chicago. Mayes is a former President of the National Alliance for the Mentally Ill-Greater Chicago. 


Samantha Handley, LCPC, CSADC

Vice President

Samantha Handley became Vice President in 2013 after serving as Director of Operations since 2009 and Director of Human Resources and Program Content from 2007-2009. Samantha is responsible for creating and implementing organizational and program policies, managing Trilogy’s Human Resources, and overseeing all operations. Samantha received her Bachelor’s Degree in Psychology from the University of Pittsburgh and her Master’s Degree in Counseling from West Virginia University. She is a Licensed Clinical Professional Counselor and a Certified Supervisor Alcohol and Drug Counselor. Samantha has over 16 years of clinical supervisory experience in both inpatient and outpatient settings in Chicago, Los Angeles, and Cleveland. In addition, she has presented at both local and national conferences as well as co-authored an article published in the Psychiatric Rehabilitation Journal.


Dee Atkins, MSJ 

Chief Communcations & Development Officer

Dee Atkins was appointed Chief Communications & Development Officer in 2017. She came to Trilogy after serving as Director of Corporate and Volunteer Relations for a privately funded nonprofit agency whose mission focused on youth and trauma. Dee is responsible for the development of Trilogy’s marketing strategies and communications initiatives. Additionally, she oversees the expansion of funding for capital campaigns, annual giving, endowments, and special events. Dee received her Bachelor’s Degree in English from East-West University and her Master’s Degree in Journalism from Roosevelt University. She has more than 15 years of experience as a nonprofit administrator in development, corporate social responsibility, volunteer management and community outreach. She will lead efforts to grow relationships with key stakeholders, including board members, donors, and care providers.


Susan Doig, LCSW

Chief Clinical Officer

Susan Doig became Chief Clinical Officer in 2013 after serving as Director of Clinical Services and as Assistant Clinical Director since September of 2005. Susan is responsible for the development and oversight of Trilogy’s clinical services and programming including Integrated Services as well as Trilogy’s Frequent User Jail Program. After receiving her bachelor’s degree from University of Missouri in 1993, Susan began her career at Trilogy in 1994 as a Recovery Counselor. Susan left Trilogy in 1997 to attend graduate school at the University of Illinois in Chicago. Following graduation, Susan spent eight years in the mental health field assisting individuals with serious mental illness who were returning to the community from Cook County Jail. Her current focus is on strengthening partnerships, collaborations, and taking the lead on clinical services at Trilogy. Susan also serves as Trilogy’s representative to the Mental Health Summit of Illinois.