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Chief Medical Residents


Mariah Hoffman, M.D.

Mariah was born and raised on a small farm near Chapel Hill, North Carolina.  She earned her undergraduate degree in Biology and Geography at the University of North Carolina at Chapel Hill.  After becoming a wilderness EMT and working in Lilongwe, Malawi with the UNC-Project in Infectious Diseases and health systems research, she attended medical school back in Chapel Hill at the University of North Carolina School of Medicine.  She was thrilled to find the Internal Medicine program at UC-Denver which attracted her not only with its like-minded people, but also with its supportive environment and excellent primary care track with the option of an HIV primary care sub-track.  Mariah now can’t imagine living anywhere else and plans to work in academic primary care for the underserved and HIV-infected patients of Denver.  Mariah spends most of her free time doing all things outdoors including running, skiing, rock climbing, and hiking.  She also loves cooking, biking around the city, and her urban container garden.

Julie Knoeckel, M.D. 

A proud Colorado native, Julie was born and raised in Aurora just a few miles away from the University campus.  She attended Colorado State University where she studied Biomedical Sciences and Spanish. She didn’t stray far when selecting a medical school and she graduated with AOA honors from the University of Colorado. During residency she joined the Hospitalist Training Track. She is excited to pursue a career as an academic hospitalist and has an interest in quality improvement and understanding how to better care for underserved populations. Julie stays busy outside of the hospital trying to keep up with her beloved Doberman pinscher, Rosco and her husband of three years Chris. She also loves hiking, running, sampling delicious Colorado microbrews and cheering for the Denver Broncos. 

Scott Matson, M.D.

Scott Matson grew up in Kansas where he stayed for college and medical school at the University of Kansas. It was there, in an undergraduate physics lab, where he met his wife Amanda who is a budding pediatric cardiologist at Children's Hospital in Denver. In college Scott studied Saxophone Performance before starting medical school. During residency Scott completed research within the divisions of pulmonary science and rheumatology focused on the link between interstitial lung disease and connective tissue disease for which he received a resident research grant from the American College of Rheumatology. After his CMR year he plans to pursue a career in academic pulmonary/critical care. Outside of work Scott enjoys writing, running with his wife and their dog (Emmett) and enjoying all the beautiful scenery that Colorado has to offer. When he's not in the mountains Scott can be found watching either Kansas City Royals or KU basketball games depending on the season. 


Aaron Strobel, M.D.  

Aaron is an Arkansas native and earned his undergraduate degree in Biological Engineering from the University of Arkansas. He attended medical school at the University of Arkansas for Medical Sciences, where he graduated with Honors in Research. Aaron was originally attracted to the University of Colorado because of the mountains and outdoor activities, but knew this is where he belonged after completing a sub-internship here. He pursued research in cardiovascular medicine, focusing on outcomes of peripheral artery disease interventions. Aaron is currently applying for a Cardiology fellowship and planning a September wedding with his fiancé, Amanda. He enjoys running, hiking, skiing, and spending time in the mountains. In his free time in Denver, he enjoys trying new beers at local breweries, going to live music at Red Rocks, and cheering on the local sports teams.

Jackson Turbyfill, M.D.

Jackson was born and raised in Asheville, North Carolina. He then attended the University of North Carolina for his undergraduate degree before heading to Wake Forest University for medical school, where he met his now wife, Melisa. Excited for an adventure, the pair couples matched here in Denver.  Jackson started in the categorical track, but after his first year transitioned to the hospitalist track. He enjoyed the leadership, development, and focus on academics that the track provided. He and his wife, now a chief in the pediatrics program, enjoy running, hiking, camping, skiing, live music, and (most of all) hanging with their puppy, Ollie. After chief year, Jackson hopes to pursue a career as a hospitalist.



Sarah Wirth, M.D.

Sarah was born and raised in Grand Island, Nebraska and attended Creighton University for her undergraduate degree in Chemistry. She subsequently moved to Chicago for medical school at Loyola University Chicago Stritch School of Medicine, where she graduated with the distinction of Alpha Omega Alpha. Sarah was attracted to the University of Colorado Internal Medicine Residency for its strong clinical training, personable residents, and opportunities for growth. She joined the Primary Care Track during her second year of residency, and plans to do primary care with some inpatient work for her career. Although not originally a “mountain” person, she has grown to love hiking, camping, biking, and skiing. She is currently planning her wedding this September to her fiancée, Joe, who is also a graduate of the program. 


VA Chief Resident for Quality and Safety


Jordan Harrison, M.D.

My name is Jordan Harrison. I am from Norman, Oklahoma. I went to the University of Northern Colorado, aka the real UNC for undergrad. I went to Emory University for medical school. My wife (9 years!) is an art teacher and I have a terrible golden lab named Doug! I want to travel and become a geriatrician!