Better Nights,
Brighter Days
Medical Specialists for Sleep Disorders Serving Colorado
Founded in 2010, RemHealth (formerly Colorado Sleep Institute) is a comprehensive Sleep Medicine practice committed to advancing the diagnosis and treatment of sleep disorders. We have provided specialty care to more than 100,000 Coloradans, addressing the full spectrum of recognized sleep disorders—from insomnia and sleep apnea to narcolepsy and restless legs syndrome.
Meet Our Providers
Mark Hickey, MD
Dr. Hickey is the founder of RemHealth, originally established in 2010 (formerly Colorado Sleep Institute) to provide truly comprehensive care for the full spectrum of sleep disorders. He is board-certified in Sleep Medicine.
Meet Our Providers
Cassidy Sanders PA-C
Cassidy earned his Master of Physician Assistant Studies from the University of Utah School of Medicine in Salt Lake City in 2015. He then pursued a Doctor of Medical Science degree with an emphasis in Physician Assistant Education at A.T. Still University in Mesa, Arizona, graduating in 2021.
Meet Our Providers
Mary Jannik, PA-C
Mary Jannik PA-C is a nationally board-certified Physician Assistant that has been practicing medicine for over 18 years. She completed her physician assistant education and training to graduate with a Masters in Medical Science degree from St Francis University in 2006.
Meet Our Providers
Blake Young, PA-C
Blake Young, PA-C, is a board-certified physician assistant trained at Oklahoma City University. After completing his education in 2021, he launched his career in pulmonology and sleep medicine, where he discovered a passion for addressing a wide range of sleep disorders.
Meet Our Providers
Jill Coan, APRN
Jill Coan, APRN, is a board-certified Family Nurse Practitioner through the American Association of Nurse Practitioners. She earned her Bachelor of Science in Nursing from the University of Kansas in 2010 and completed her advanced practice training at the University of Central Missouri, graduating in 2019.
