Meet Your Physicians
Our care team physicians are board-certified, licensed, and ready to provide high-quality healthcare to you and your family. Learn more about a few of our doctors below.
Dr. Courtney Hutchins
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Dr. Hutchins graduated from Rush Medical College in Chicago and trained at one of the top Emergency Medicine residency programs, the University of Chicago. Prior to her medical training, Dr. Hutchins received her master's degree in public health, with a focus on policy and management. In addition to her clinical experience, she has over a decade of experience with health systems, care delivery, digital health solutions, and quality improvement. Dr. Hutchins brings her award-winning leadership and bedside manner to apios, providing compassionate evidence-based care to our patients. She oversees the hiring and operations of all apios providers, as well as quality improvement programs, ensuring all our patients can expect the same high-quality interactions with any apios provider.
Dr. Kirk Heath
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As a board-certified general surgeon, Dr. Heath has a long history in healthcare, both in surgery and in developing models to streamline the delivery of healthcare. Prior to Apios, Dr. Heath was a founder of Modio Health, a top software credentialing company.
Dr. Thomas O’Brien
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Dr. O’Brien is a board-certified physician in Emergency Medicine. He graduated with honors from Rutgers Robert Wood Johnson Medical School in New Jersey. He then completed his residency training in Emergency Medicine at the University of Chicago.
Dr. O’Brien has over 7 years of bedside clinical experience in several busy Level 1 trauma centers. His training in emergency medicine has provided him with expertise in treating various medical ailments. Dr. O'Brien brings an athlete's mindset to lifestyle medicine. His D1 background at the University of Minnesota instilled a deep understanding of how the body performs, recovers, and responds to training and fueling. Now directing our GLP program, he applies that same precision to metabolic health, designing evidence-based approaches to nutrition, movement, and sustainable weight management. For Dr. O'Brien, prescribing GLPs isn't just medication management. It's coaching patients toward the kind of sustainable performance they want from their bodies.
His passions also include LGBTQ+ health, quality improvement, and evidence-based care.
Dr. Katie Trammel
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Dr. Katie Trammel is a board-certified Emergency Medicine physician with more than 15 years of experience caring for patients in academic, community, rural, and Level I trauma settings. She earned her medical degree from Southern Illinois University School of Medicine and completed her Emergency Medicine residency at Indiana University.
Dr. Trammel is an Assistant Professor at Indiana University School of Medicine and has been recognized for excellence in clinical teaching. She has a longstanding interest in patient safety, quality improvement, and evidence-based care. She especially enjoys helping patients make sense of medical information and feel confident about the next steps in their care.
Dr. Madolyn Krengel
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Dr. Krengel is board certified in obesity medicine and internal medicine. She attended Rush University College of Medicine where she graduated with honors including being inducted into the Alpha Omega Honor Society. She's received multiple awards including the Glasgow-Rubin Certificate, awarded to women in the top ten percent of their medical school graduating class, and the Edward J. Eckenfels Award, given to a graduating student for their outstanding work in disease prevention and health promotion.
She trained at the University of Washington, completing a residency in internal medicine with a focus on primary care and women’s health.
Dr. Krengel currently practices primary care in Seattle. Throughout her career, she often heard from patients who, despite their best efforts, struggled to improve conditions like obesity and obesity-related diseases through lifestyle changes alone. As she cared for these patients and pursued formal training in obesity medicine, she saw firsthand how effective comprehensive medical treatment of obesity can be. She became board certified in obesity medicine and now devotes a significant portion of her clinical practice to treating the disease. Watching her patients succeed became her clinical passion, and she is committed to finding each of them an effective, evidence-based, and sustainable treatment plan.