American College Of Surgeons - Inspiring Quality: Highest Standards, Better Outcomes

Current Clinical Scholars

Ryan EllisRyan Ellis, MD

Dr. Ellis is a first-year ACS Clinical Scholar in Residence and a general surgery resident at Northwestern University, Chicago, IL. He obtained a bachelor’s degree in chemical engineering at the University of Kansas, Lawrence, and his medical degree from the Perelman School of Medicine at the University of Pennsylvania, Philadelphia. As an ACS Clinical Scholar he will focus on surgical outcomes and quality in complex surgical oncology, specifically in management of pancreatic malignancies. Dr. Ellis is also working on identifying what factors patients prioritize when choosing hospitals and health care providers. He plans to pursue fellowship training in surgical oncology after residency, with the ultimate goal of establishing a practice at an academic medical center. In addition to his research, Dr. Ellis is also a postdoctoral fellow at Northwestern University’s Institute of Public Health and Medicine, where he will earn a master’s degree in health services and outcomes research.


Melissa HornorMelissa Hornor, MD

Dr. Hornor is a second-year ACS John A. Hartford Foundation James C. Thompson Clinical Scholar-in-Residence. She is a general surgery resident at The Ohio State University Wexner Medical Center in Columbus. Dr. Hornor received her medical degree from The Ohio State University and her bachelor’s degree in biological sciences from Ohio University, Athens. She is currently pursuing a master’s degree in health sciences and outcomes research at Northwestern University, Chicago, IL. Her research is focused upon the improvement of the quality of surgical care within the geriatric surgery population specifically through the ACS quality program the Coalition for Quality in Geriatric Surgery (CQGS). She is also investigating outcomes after emergency surgery within the older patient population.

Her surgical interests lie in trauma, acute care surgery, and surgical critical care. Her professional goal is to pursue a career in academic surgery and to combine quality improvement and clinical research with her clinical practice.


Lina HuLina Hu, MD

Dr. Hu is a first-year ACS Clinical Scholar-in-Residence. She is working on the Improving Surgical Care and Recovery (ISCR) program, a collaboration with Johns Hopkins Armstrong Institute funded and guided by Agency for Healthcare Research and Quality (AHRQ). The program seeks to develop and implement evidence-based perioperative guidelines in hospitals to enhance the recovery of surgical patients. She is interested in pursuing a career in academic surgery and hopes to combine her interest in health services and outcomes research with her clinical practice.

Dr. Hu is a general surgery resident at University of California Los Angeles. She received her medical degree from Johns Hopkins University, Baltimore, MD, and her bachelor's degree in bioengineering from Rice University, Houston, TX. During her research time, she is also pursuing a master’s degree in health services and outcomes research at Northwestern University.


Jason Liu, MDJason Liu, MD

Dr. Liu is a third-year ACS Clinical Scholar-in-Residence and a general surgery resident at the University of Chicago Medicine. He received his medical degree from the University of Texas Southwestern Medical Center and a bachelor’s degree in biomedical engineering from the Pratt School of Engineering at Duke University. In collaboration with the Americas Hepato‐Pancreato‐Biliary Association (AHPBA), he has designed the first randomized registry trial in surgery for surgical care. Furthermore, with the efforts of Larissa Temple, MD, FACS, and Andrea Pusic, MD, FACS, he is leading the development of the new patient‐reported outcomes (PROs) portal for ACS NSQIP and the other ACS registries. He is also involved with incorporating PROs into episode‐based alternative payment models being led by Frank Opelka, MD, FACS, in the ACS Division of Advocacy and Health Policy.

His research focuses on performance measurement methodology and PROs. He plans on pursuing a career in surgical oncology. His fellowship is supported by the department of surgery at the University of Chicago Medicine and the ACS Division of Research and Optimal Patient Care.


Jessica LiuJessica Liu, MD

Dr. Liu is a first-year ACS Clinical Scholar in Residence and a general surgery resident at Emory University, Atlanta, GA. She received her medical degree from Emory University and her bachelor’s degree in biology from University of Florida, Gainesville. Her interests broadly include quality improvement research and resident education on quality improvement. Her long-term career goals include pursuing a career in academic surgery and incorporating clinical research and quality improvement into her clinical practice.

She is currently working on national implementation of enhanced recovery pathways following surgery through the ISCR program. During her research time, she is also pursuing a master’s degree in health sciences and outcomes research through Northwestern University, Chicago, IL.