Dr. Andreas J. Edrich specializes in the balancing act between optimization of safe opioid, comprehensive, respectful pain management and addiction care. Dr. Edrich has been practicing medicine for 21 years and is a master of pain and addiction, pharmacogenomics and treating patients with psychiatric/mental health problems. Dr. Edrich helps people of all ages and stages find better health. He is board-certified in both Family Medicine and addiction medicine and is a certified Medical Review Officer. He understands the complexity of mental health, addiction and pain management and treats the biological, psychological, and sociological aspects that factor into a strong recovery. He has helped hundreds of patients gain control over their lives through not only medication and integrated treatment plans for mental health but also strongly believes in the role of safe non-medication treatments such as cognitive behavioral therapy and the FDA approved use of repetitive transcranial magnetic stimulation (rTMS). Together with TMS center in Centennial Dr Edrich functions as the medical director and initiates TMS treatments for patients with resistant major depression.

Katie recently joined Heritage Hills in January of 2022 and is very excited to be a part of the team. She received both her Bachelors of Health Science and Masters of Physician Assistant Studies from Valparaiso University in Indiana. She grew up in Michigan but relocated to Denver to be closer to her family and enjoy the beautiful environment that Colorado has to offer. Katie completed training in addiction medicine and behavioral health throughout her education where she cultivated a passion for these areas of medicine. She is excited to work with a practice that focuses on their patient’s mental health while still addressing primary care needs. Katie’s favorite part about being a PA is the opportunity to connect with her patients and truly make a difference in their lives by helping them achieve their optimal wellness. In her free time she enjoys hiking, skiing, dancing, spending time with friends and family, and reading.

Christine O’Neal, PA-C joined the Heritage Hills team in 2016 after spending ten years in the urgent care field. She received her Physician Assistant training and Masters of Science degree from the University of Colorado Health Sciences Center. She has an interest in wellness and mental health, and treating the whole individual. She loves the strong bonds she is able to build with patients, and feels this is one of the unique strengths that is shared by providers at Heritage Hills. She is also serving as Medical Coordinator for MANNA Worldwide, a non-profit seeking to rescue children from the grip of poverty through offering nutrition programs, education, medical care, and housing for orphans. She took a one year hiatus in 2019 from Heritage Hills to travel internationally. With her family, she visited MANNA projects in 12 countries to continue learning how to better care for the medical needs of children in each location.

Jillian Just, PA-C begin working in Family Medicine in 2003. She received her undergraduate degree from Texas A&M University and her Masters of Physician Assistant Studies with top honours from the University of North Texas Health Science Center. Jillian and her family moved to the Denver area in late 2012, and she found her home at Heritage Hills Family Medicine in 2015. Her patient care focuses on complete patient health care for both diagnostic and preventive treatments. Jillian has a strong interest in nutrition and health prevention, as well as helping patients through psychological and addiction issues. In fact, along with Nicci and Christine is one of the first to obtain the special licensure to treat patients with Suboxone for addiction. Jillian enjoys time outside of the office with husband, two children, and her golden retriever. Jillian enjoys serving in her local Church’s childrens ministry, running, reading, skiing, gardening, and enjoying the beauty of Colorado.

Johnnie joined the practice in August 2024. She earned her undergraduate degree from Temple University and completed her Master of Physician Assistant Studies at Thomas Jefferson University, both in Philadelphia. Originally from Pennsylvania, Johnnie relocated to Colorado after graduation. She began her career in addiction medicine, where she developed a deep commitment to serving a patient population that is often underserved and stigmatized. Seeking to expand her clinical skills, she transitioned to Heritage Hills where she has been able to integrate family medicine, addiction care, and mental health. Outside of work, Johnnie enjoys practicing yoga, reading, crocheting, hiking, and tending to her indoor garden.

Rayna, PA-C, joined Heritage Hills in March 2025. She earned her undergraduate degree from Chapman University in Southern California and completed her Master of Physician Assistant Studies at Faulkner University in Montgomery, Alabama. Originally from California, Rayna relocated to Denver to embrace an active lifestyle and enjoy the beauty of the Colorado outdoors. During her PA studies, she completed training in family medicine and mental health where she developed a passion for treating the patient as a whole. Rayna is committed to building lasting relationships with her patients and emphasizes preventative care as a foundation for long-term wellness. She was drawn to Heritage Hills for its patient-centered approach and shared belief that mental health is just as important as physical health. Rayna strives to ensure every patient feels respected, supported, and genuinely cared for. Outside of the clinic, she enjoys spending time with her husband and their German shepherd, Zeppelin, hiking, reading, traveling, and seeking out new adventures in nature—especially those that involve any kind of body of water!