Dr. Sullivan serves as the Medical Director of Harborside Spine and Sports Center. After receiving his medical degree from Loyola University Stritch School of Medicine and resident training at Georgetown/National Rehabilitation Hospital in Washington, DC, he completed an Orthopedic and Physical Medicine Fellowship at the University of Massachusetts Medical School. During his senior year of residency, Dr. Sullivan was the chief resident and Resident of the Year. Dr. Sullivan is board-certified in Physical Medicine and Rehabilitation. He brings expertise in pain management and rehabilitation and offers interventional spine procedures and electrodiagnostics. Dr. Sullivan lives with his wife and four children in Petoskey and enjoys hiking and skiing.

Dr. Coy grew up in Northern Michigan. He graduated from Loma Linda University School of Medicine. He went on to complete his Physical Medicine and Rehabilitation residency at Eastern Carolina University in Greenville, NC where he served as chief resident. After graduation, he moved to Virginia Beach, VA to complete his Spine and Musculoskeletal Rehabilitation Medicine fellowship at the Jordan-Young Institute. Dr. Coy is board-certified in Physical Medicine and Rehabilitation. He brings experience in pain medicine with non-surgical spine and orthopedic procedures.

Dr. Coy enjoys spending time with his wife and their two children. His hobbies include ultimate frisbee, basketball, and swimming.

Jason graduated in 2002 with a Master’s of Medicine degree as a Physician Assistant from Trevecca Nazarene University. Since 2002 he has worked nearly 15 years in neurosurgery, and over 5 years at Harborside, where he has gained extensive knowledge of diagnosing and treating spine pathology, including learning how to read MRI’s, CT’s and x-rays of the spine. In addition to previous work in neurosurgery, he also spent five years as a clinical preceptor for physician assistant students at professor at Olivet Nazarene University where he taught anatomy and physiology classes. He provides a caring and compassionate approach to the treatment of musculoskeletal injuries and conditions, including various types of musculoskeletal injections.

Jason lives in Petoskey with his wonderful wife and two amazing daughters. He enjoys spending time outside with his family and enjoying God’s amazing creation in Northern Michigan, along with camping, running, biking, hunting and fishing.

Adam graduated from Eastern Michigan University with a master’s degree in physician assistant studies in 2016. Prior to this, he earned a bachelor’s degree from Lake Superior State University in athletic training and a master’s degree from Illinois State University in kinesiology. He served the Petoskey community as the high school athletic trainer for 5 years before transitioning into his role as a physician assistant. Adam has experience in kinesiology, orthopedics, and rheumatology which allows him to offer a well-rounded approach to musculoskeletal care.

Outside of the office, Adam enjoys spending time with his wife in beautiful northern Michigan. He’s an avid outdoorsman who enjoys hunting, biking, running, and hiking.

Samantha Cronk earned her Bachelor of Science in Nursing from Grand Valley State University and began her nursing career at Corewell Health in Grand Rapids, MI. As a bedside nurse, she worked in the Chest Pain Center and Emergency Department Observation Unit, later moving to the Medical Intensive Care Unit, where she worked as bedside nurse, charge nurse, and as a preceptor for both nursing students and new employees to the unit. Samantha completed her Master of Science in Nursing at Walden University, with clinical practicums at Corewell Health. Her training included palliative care, pain management, and neurosurgery. She practiced as a nurse practitioner in neurosurgery for several years before joining Harborside Spine and Sport Center.

A board-certified nurse practitioner and member of the American Association of Nurse Practitioners, Samantha offers holistic, compassionate, and individualized care for patients, always aiming to identify the root cause of her patients’ symptoms and promote long-term wellness.

Outside of work, she enjoys skiing, camping, kayaking, and spending quality time with her family in the great outdoors.