Class of 2023

Justin Gause, MD

Justin was born in Louisville, KY, to a nomadic family that eventually settled in Boise, ID where he was raised. He studied biology and health sciences at Boise State University after working as a freelance musician, eventually graduating Magna Cum Laude and began medical training with the University of Washington School of Medicine with an interest in pursuing Family Medicine. His time in Seattle, WA further distilled his interest in working with medically underserved, rural, global, and marginalized communities particularly in supporting patients with complex socioeconomic backgrounds. This interest led him to his Family Medicine training with the University of Arizona South Campus Family Medicine program where his passion for addiction and substance use/abuse treatment further developed. During this time he had the opportunity to work at the Songabele rural health center in Nkololo, Tanzania where he coordinated the construction of a Neonatal Intensive Care Unit in an effort to improve neonatal mortality rates due to hypothermia, neonatal sepsis, and respiratory distress and plans to continue his work abroad. Justin continues to enjoy music during his personal time, and composed/recorded an original song “Goodnight” as a senior resident project and plans to compile an album of original songs in the near future. Justin also enjoys reading, philosophy, traveling, painting, cinema, and weight lifting.

Mark Grant, MD

Born in Phoenix, Arizona, Mark returned to the Southwest after completing medical school at Loyola Chicago. He completed his residency at the University of Arizona South Campus Family Medicine Program where he developed a passion for working with the underserved and homeless. Bilingual in Spanish, he also enjoys working with Spanish-speaking patients. Seeing the impact addiction had on patients in the Tucson community, Mark pursued a fellowship in addiction medicine to gain the skills that would help him better serve this population. When not working, Mark enjoys running, swimming, exploring the mountains around Tucson and being a father and husband.

Muhammad Qasim Maqbool, MBBS

Dr. Maqbool received his medical degree from King Edward Medical College, Pakistan in 2006. He completed his Family Medicine residency in 2013 from University of Oklahoma at Tulsa and received a Family Medicine award for Scholarship and the 2013 Resident Teacher Award. He had been working as a Hospitalist since completing his residency and served as a Faculty member for the University of Oklahoma Family Medicine program while also serving on the quality improvement committee. He enjoys hiking, table tennis, cricket, and soccer.

Class of 2022

Chris Dixon, DO
Addiction Medicine Fellow, 2021-2022

Chris was born and raised in Tucson, AZ. He graduated from the University of Arizona in 2001 with a Bachelor of Science in Psychology and subsequently received his Doctor of Osteopathic Medicine degree from Midwestern-AZCOM in Glendale, AZ in 2006. He completed his Family Medicine residency with Clarkson Family Medicine in Omaha, NE in 2009. From residency graduation in 2009 until starting addiction medicine fellowship training in 2021, he has worked as a family medicine physician at the El Rio Community Health Center in Tucson, providing outpatient primary care in the clinic setting as well as inpatient care for El Rio patients hospitalized at St. Mary’s Hospital. He loves working with medical students and served as a regional director of medical education for ATSU-SOMA from 2014-2021. Chris is fluent in Spanish and has traveled to Guatemala for medical mission trips with the DOCARE International organization in 2018, 2019, and 2020. Chris and his wife are the proud parents of five children. When not spending time with his family or seeing patients, Chris also enjoys basketball, golf, guitar, and reading. 

Alicia Hidalgo, MD
Addiction Medicine Fellow, 2021-2022

Alicia Hidalgo received her medical degree from the University of New Mexico in Albuquerque, NM where she was born and raised. Upon completion of medical school, she moved to Portland, OR to complete her residency in internal medicine. Following her residency, she served as chief resident and subsequently worked as a hospitalist where she discovered her interest in and passion for treatment of patients with substance use disorder. She then returned to the Southwest to continue her education at the University of Arizona Addiction Medicine fellowship. When not working, Alicia spends time with her family and enjoys a variety of outdoor activities, running, and traveling.

Lindsey Retterath, MD
​Addiction Medicine Fellow, 2021-2022

A Midwestern native, Lindsey Retterath received her medical degree from Michigan State University College of Human Medicine in 2015, and then completed the combined Emergency Medicine and Pediatrics Residency Program at University of Arizona. She continues to works an Emergency Physician in Tucson and began as an Addiction Medicine Fellow in 2020. Her special interests include management of substance use disorders in the Emergency Department and Adolescent Addiction Medicine. Her undergraduate background is in Sociology and Spanish. Prior to going into medicine, she did work in the non-profit sector and has maintained an active interest in social determinants of health, public health, and health policy. She loves working with a variety of patient populations in Tucson. In her free time, you’ll likely find her on a hiking trail or climbing crag somewhere in Southern Arizona.

Spencer Roberts, DO
Addiction Medicine Fellow, 2021-2022

Spencer Roberts is the son of a career Air Force officer and spent his childhood moving around and experiencing almost every part of the country (he has been to every state except Alaska.) Prior to becoming a physician, Dr Roberts served in the Air Force himself as a Linguist. His experiences in the military sparked an interest in mental health and addiction. He is a graduate of the Arizona College of Osteopathic Medicine and completed residency in Psychiatry in Aurora, Colorado where he also served as Chief Resident.

Class of 2021

Michelle O'Brien, DO
Addiction Medicine Fellow, 2020-2021

Michelle O’Brien received her medical degree from Western University of Health Sciences, Oregon in 2015 and did one year of Internal Medicine at The Wright Center in Scranton, Pennsylvania before transitioning to Psychiatry. She received her undergraduate degree from Grinnell College, Iowa, in 2011 with a B.A. in Biology. She has had an interest in medicine for quite some time but was initially drawn to Med/Psych and continues to thrive on a holistic approach to health care. Her interests in Psychiatry are varied including Addiction, Forensics, and inpatient or outpatient Adult. Michelle graduated from the University of Arizona Psychiatry Residency Program in 2020, and from the UArizona Psychiatry Addiction Medicine Fellowship in 2021. As of summer 2022, Dr. O’Brien is the Chief Psychiatrist at Pima County Adult Detention Center.

Jamie Weinand, MD
Addiction Medicine Fellow, 2020-2021

Jamie Weinand obtained his medical degree from Boston University School of Medicine in 2017. He received his B.S. in Biology and a B.A. in Spanish from Duke University in 2012. Following his undergraduate graduation, Jamie completed a Fulbright scholarship in Mexico City in 2013. Professionally his interests include addiction medicine and LGBT healthcare. He is a Tucson, Arizona native and graduated from Salpointe Catholic High School in 2008 and is thrilled to be back home. Outside of work he enjoys hiking, learning languages and reading. Jamie graduated from the Southern New Mexico Family Medicine Residency Program in 2020, and from the University of Arizona Psychiatry Addiction Medicine Fellowship in 2021. As of summer 2021, Dr. Weinand is working in FQHC, Primary Care, Addiction Medicine HIV/AIDS, and PrEP/PEP care.

Class of 2020

Edward Ramsey, MD
Addiction Medicine Fellow, 2019-2020

Edward Ramsey obtained his medical degree from The University of Texas Medical School at Houston and then served six years as a military physician in the United States Army. After his military commitment, Ed returned to UT-Houston to complete his Anesthesiology Residency. His experience as an Anesthesiologist and in Interventional Pain led to his discovery of Addiction Medicine. Dr. Ramsey works in Houston, TX at Contemporary Medicine and Associates, a private practice that specializes in the diagnosis and treatment of substance use disorders.