Dr. Gabis received his Bachelor of Science degree from Ohio University in Athens, Ohio in 1983. He received his Doctor of Medicine degree from Wright State University School of Medicine in 1987. Dr. Gabis served his first year of residency at the Medical University of South Carolina (MUSC) in Charleston, South Carolina where he received recognition for teaching medical students from MUSC. His post-graduate training continued at Miami Valley Hospital in Dayton, Ohio, where he was named Chief Resident for the Family Medicine residency program. He was also named Outstanding Family Medicine Resident by the Miami Valley Chapter of the Ohio Academy of Family Physicians.

In 1990, he moved to Chillicothe, joined Paul F. MacCarter, Jr., MD in private practice at Chillicothe Family Physicians and then as part of Adena Primary Care in 1997. He was elected as the Ross County Coroner in 1992 and served in the position for 26 years. Since April of 2011, Gabis has been providing primary care to patients at Pickaway Ross Family Physicians in Chillicothe. He has served in various physician leadership roles throughout his career at Adena. He previously served as the Senior Medical Director of Primary Care for Adena Health System as well as Program Director for Adena’s Transitional Year  Residency Program and President of Adena Medical Group, a 250-provider multispecialty group at Adena. He is currently the Medical Director of Community Partnerships for Adena Health.

He is a Fellow of the American Academy of Family Physicians and is a Certified Physician Executive.

In his roles as a coroner and a physician, Gabis has championed the fight against opiate drug overdose deaths in Ross County and helped to found the Hope Partnership Project, a multi-agency government initiative that assesses and addresses the opiate addiction and overdose death epidemic in Ross County and across the State of Ohio.