ARC Leadership

Chief Executive Officers

Eric Guyer, President & CEO

ARC President & CEO Eric Guyer, MM, CADC III, first joined the team in January 2023 as Chief Clinical Officer and Deputy Director. He is a level III Certified Alcohol and Drug Counselor and brings with him 25 years of experience working with Jackson County, most recently as Director of Jackson County Community Justice. He earned a Bachelor’s Degree from the University of Oregon and a Master’s of Management Degree from Southern Oregon University (SOU), providing him the perfect background to fulfil his roles and responsibilities at ARC.

Eric has worked as a Head Coach of the Boys Basketball team at St. Mary’s School and has taught several community corrections-related classes at SOU as an Adjunct Professor. Prior to joining the ARC, Eric served as the Chair of the Local Public Safety Coordinating Council and Chair of the Alcohol and Drug Planning Committee for Jackson County and as the Past-President of the Oregon Association of Community Corrections Directors.

Dori Best, Chief Clinical Officer

Born and raised in Argentina, Dori Best dedicated her life to health and wellness as a PE teacher, as a trainer, and as a triathlete. In her late 30s, she moved to the US in search of furthering her education and becoming a mental health counselor. In 2015, she graduated with a master’s degree in mental health counseling, and two years later, motivated to help people with co-occurring disorders, she obtained a certification in substance use disorder (CADC) Before and after graduation, she worked in outpatient and impatient substance use disorder treatment centers, and in 2017, motivated to provide services to the underserved population, she applied at La Clinica Del Valle, where until recently she worked as a bilingual behavioral health clinician and Certified Drug and Alcohol Counselor. Dori has served for the Phoenix Counseling Center’s board of directors, for the Local Alcohol and Drug Planning Committee, and for the Mental Health and Disabilities Planning Committee.

Doug Diehl, Chief Medical Officer

Doug Diehl, MD and his family moved to Southern Oregon in 2002 where he joined the staff at Ashland Community Hospital and became the Medical Director of the O.R. and managing partner of his anesthesia group. He served in numerous clinical and administrative leadership roles as well as serving on the hospital board of directors during his tenure. As Board chair, Doug was instrumental in guiding the affiliation with the Asante Health System after which he joined Asante Physician Partners as Executive Medical Director and subsequent Chief Medical Officer.

Doug received his undergraduate degree at Carroll College in Montana, attended Cornell University Medical College in New York City, and completed his residency at the University of New Mexico Internal Medicine, after which he accepted a position as the Chief Medical Officer and Medical Director at the Chippewa Health Center, located within the boundaries of a Native American reservation. He served on several boards and is currently a member of the non-profit Community Works board.

Doug is very excited to be a part of ARC, serving as the Chief Medical Officer.

Amber Duncan, Chief Administration Officer

ARC Chief Administration Officer Amber Duncan has been an integral part of our team since November 2021, when she joined ARC as an HR Generalist. In June 2022, she assumed the role of HR Director, where she has played a pivotal role in shaping our HR strategy and fostering a culture of employee wellbeing.

Amber came to work in behavioral health following a progressive human resources career that garnered extensive, invaluable experience in recruitment, employee benefits, employee engagement and relations, as well as policy development and HRIS implementation. She currently lives in Grants Pass with her husband, children, and 5 dogs.

Mónica Morales, Chief Financial Officer

Mónica Morales joined ARC as the agency’s Chief Financial Officer in March 2024 with more than 25 years in accounting and finance. She was born in Madrid and grew up in the South of Spain, eventually earning a BS in Business from the University of Cadiz and an MBA from the Instituto de Empresa. After years spent working for organizations in different sectors and in locations from Spain to France, Mónica met her husband who is from Medford, and in 2003 relocated to the Rogue Valley where they raised their two children. Here Mónica also continued her career in finance, most recently working as a Certified Public Accountant and the Chief Financial Officer at Medical Eye Center, where she successfully led and implemented multiple initiatives to improve their accounting and reporting systems.

Mónica has also long been engaged in community service, starting as a volunteer for the SMART program, later serving on the Board of the Family Nurture Center, and currently as the Vice President of the Board of Directors at La Clinica Del Valle. Mónica’s alignment with ARC’s mission and guiding principles is palpable, and she is eager to leverage her diverse experiences and expertise to contribute to the health and well-being of our community.

Danni Swafford, Chief Operations Officer

Danni Swafford earned her degree in business administration from Southern Oregon University and was drawn to nonprofit work in health care and social services to make a difference in people’s lives. Since March 2005, she has served in many different roles at Addictions Recovery Center including reception, admissions, customer service, operations and compliance before becoming ARC’s Chief Operations Officer in November 2017. She is dedicated to improving access and quality of care for the individuals we serve.