Dedicated Professionals Creating Change

Reditus Laboratories
Reditus Laboratories
Reditus Laboratories

Our Leadership

Our leadership consists of physicians that have many years of medical experience in addition to years of business experience, and will never forget what matters at the end of the day: the human being.

Aaron Rossi, MD

Aaron Rossi, MD, CEO of Reditus Laboratories, LLC. He graduated from Elmhurst College in 2006 and received his medical degree from the University of Sint Eustatius School of Medicine in 2012. While still in medical school, Dr. Rossi discovered his passion and unique aptitude for the business management of private medical practice. Since graduating from medical school, Dr. Rossi has served in multiple capacities across the health care continuum, allowing him to expand his knowledge and develop a diverse skillset. Dr. Rossi was driven by his passion to help private physicians navigate the ever-changing health care landscape. He developed a proven model for private practice management and continued to develop his model as he grew a Central Illinois single-provider practice into a robust multi-specialty group. He quickly quadrupled the practice’s revenue in less than five years. Dr. Rossi believes staying in touch with physicians who provide direct patient care allows him to better understand the challenges that private practice physicians experience every day. His main goal, which provides his drive, is to help keep doctors autonomous. He opened Reditus Laboratories in 2019. 


Lawrence J. Rossi, Jr., MD

Lawrence J. Rossi, Jr., MD, President of Reditus Laboratories. He has been a practicing physician in Central Illinois for more than 40 years, serving patients as a pediatrician, in critical care medicine and as an anesthesiologist and pain management specialist. He received his medical degree from the Autonomous University of Guadalajara, Mexico; completed his anesthesiology residency at Illinois Masonic Medical Center; his pediatric residency at the University of Illinois-Peoria School of Medicine; and has board certifications from the American Academy of Pediatrics-FAAP, American Board of Anesthesiology and the American Board of Medical Acupuncture (DABMA). For the last 27 years, Dr. Rossi practiced anesthesiology and pain management and was involved in the operation of Hopedale Medical Complex in Hopedale, Illinois. 


Joshua J. Geltz, Ph.D.

Joshua J. Geltz, Ph.D., a Virologist, is the Laboratory Chief at Reditus Laboratories. Before coming to Reditus, he was Chief Virologist for the Illinois Department of Public Health Laboratory in Springfield, where he supervised the clinical molecular detection of COVID-19, Measles, Mumps. Norovirus and select agent pathogens. Dr. Geltz led the research and development program which implemented improved diagnostics assays for detection of Measles, Mumps and Norovirus viral pathogens and the development of a rapid molecular and culture assay for detection of Legionella species from environmental sources. He received his Ph.D. from Southern Illinois University School of Medicine, with a focus in Virology and immunology.


Mark Rossi, JD

Mark Rossi, JD, has served as the General Counsel for Reditus Laboratories, LLC, since April 2020. For nearly 20 years prior to joining Reditus, Mr. Rossi served as President and Chief Operating Officer of Hopedale Medical Complex (HMC) in Hopedale, IL, where he also served as its general counsel. HMC is a 159-bed, non-profit, continuum of care facility, which includes a hospital, nursing home, assisted living facility, physicians’ offices, day care and large wellness center. While at HMC, he oversaw more than $30 million in capital improvements, including construction of a 34,000-square-foot wellness center, a new nursing home and a major hospital expansion. Before joining HMC, Mr. Rossi was in private practice in Tazewell and Logan counties, where he concentrated in business law, health care, municipal, real estate and probate matters. He received a bachelor’s degree in business administration from Illinois Wesleyan University in 1980 and went on to attain his Juris Doctor from DePaul University College of Law in Chicago, where he practiced tax accounting before returning to Central Illinois to open his law practice in 1984. He is a past president of the Board of Directors of the Illinois Critical Access Hospital Network and has been very active in rural health care matters. 


Adam Quinn, DO

Adam Quinn, DO, Laboratory Medical/CLIA (Clinical Laboratory Improvement Amendments) Director for Reditus Laboratories, is a board-certified dermatopathologist who trained with Geoffrey Gottlieb and Bernard Ackerman at the Ackerman Academy of Dermatopathology. He received his Bachelor of Arts in biology and art from Syracuse University in 1991, followed by a Master of Fine Arts in medical illustration at the Rochester Institute of Technology in 1994. He graduated Doctor of Osteopathic Medicine at Des Moines University in 2001 and completed his residency in anatomic and clinical pathology, with board certifications in these areas, at Loyola University Medical Center in 2006. Based out of Proctor Hospital, Dr. Quinn joined Peoria-Tazewell Pathology Group in 2007. He has several publications in the field of pathology and is a clinical assistant professor of pathology and dermatology at the University of Illinois College of Medicine at Peoria. He is a licensed physician in Illinois and Iowa. 

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Email Us

[email protected]

Come See Us

200 Enterprise Drive
Pekin, IL 61554

Give Us a Call

+1 (866) 736-0002

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