Welcome to Colorado Chiari Institute

Welcome to the Colorado Chiari Institute at The Medical Center of Aurora, is recognized as a Best Hospital by U.S. News & World Report, a leader in hospital safety by The Leapfrog Group, and a Magnet hospital for nursing excellence. The mission of the Colorado Chiari Institute is to provide high quality, compassionate care for those suffering from the Chiari 1 malformation and related disorders.

CCI is an outgrowth of The Chiari Clinic established by John Oró, MD, FAANS and Diane Mueller, ND, RN, FNP-BC at the University of Missouri Health Sciences Center in 1998 and the Chiari Care Center at The Medical Center of Aurora in 2005. Dr. Oró and his team have evaluated several thousand patients with CM 1 and he has surgically treated over 800.

Wellness is an integral part of care at CCI and we believe in treating the whole patient. By examining nutrition and wellness, we seek to identify issues that may be aggravating Chiari symptoms. Kimberly Sexton, MSN, RN, FNP-BC and supportive specialists assist patients in reaching overall health goals.

The Colorado Chiari Institute also specializes in the evaluation and management of persons referred following previous unsuccessful surgeries. While some may require revision surgery, others may have associated conditions that can be addressed. In addition, we evaluate persons with non-Chiari syringomyelia, and with tethered spinal cord.

Enhancing compassionate quality-care is our mission, and we do this through our commitments to research, education, and innovation. In addition to continuing our clinical studies and educational activities, we are currently developing an app to strengthen the link between our patients and the care team.

Just twenty minutes south of Denver International Airport, CCI is conveniently located near I-225.

View our Referral Process to schedule an appointment.

Contact us:
1400 South Potomac Street, Suite 210
Aurora, CO 80012

Phone: 303-695-2663

Fax: 303-695-2665



Meet the Team

Dr. John Oro

John Oró MD, FAANS

John Oró MD, AANS Fellow, joined faculty at the University of Missouri Health Sciences Center in Columbia in 1984 following completion of his neurosurgical training at MU. During his early neurosurgical career, he specialized in pediatric neurosurgery, surgery of the skull base, and cerebrovascular surgery. In 1991, Dr. Oró became Chief of the Division of Neurosurgery and developed several subspecialty programs. In 1998, he and Diane Mueller, ND, RN FNP-BC developed The Chiari Clinic.

Dr. Oró moved to Colorado in 2005 to become the Director of Neurosurgery at The Medical Center of Aurora (TMCA). In addition to performing cranial and spinal neurosurgery, with TMCA he expanded his national center for persons with the Chiari 1 malformation. Recently, Dr. Oró and colleagues established the Colorado Chiari Institute at the Medical Center of Aurora. The Institute specializes in the evaluation and care of persons with Chiari 1 malformation, persons referred following previously unsuccessful surgeries, and persons with syringomyelia or tethered spinal cord. Enhancing the quality care mission are their commitments to research, education, and innovation.

Dr. Oró has been listed among the Best Doctor's in America since 2001 and America’s Top Surgeons since 2002.

In his free time, Dr. Oró enjoys biking, hiking, snowboarding and photography.

Kimberly Sexton, NP

Kimberly Sexton, MSN, RN, FNP-BC

Kimberly Sexton, a nurse since 1980, has extensive experience in critical care, orthopedics, business, healthcare consulting, nursing education and pain management.  She received a Master of Science Degree in Nursing and a post-graduate certificate as a Family Nurse Practitioner from the University of Colorado, Colorado Springs.  She is board certified in family practice and nursing pain management by the American Nurses Credentialing Center. Additionally, she has a Master’s Degree in Business Administration with an emphasis in Technology Management from the University of Phoenix. She has been honored many times for Excellence in Care and is a member of the American Academy of Nurse Practitioners.

Kimberly has been a HealthONE employee since 2001 with the last 9 years spent working with the Chiari 1 malformation patients and related spinal cord conditions.  Currently she serves as Nurse Practitioner following Chiari patients from their initial visits through their hospital stay and post-operative course.

In her spare time, Kimberly enjoys quilting, cooking, traveling and spending quality time with her poodles and family.

Chris DiJulio

Christine DiGuilio, RN, BSN

Christine (Chris) DiGuilio has been a nurse for 20 years. She has extensive experience in Medical-Surgical, Orthopedics, Neurology, as well as serving in leadership roles. She received her Bachelor’s of Science degree in biology at Westminster College in New Welmington, PA. Chris then received her diploma in nursing from Shadyside School of Nursing in Pittsburgh, PA, followed by a Bachelors’ of Science degree in nursing from Regis University in 2016 in Denver, CO.

Chris has been with HealthONE for 15 years, serving 4 years with The Medical Center of Aurora. She has been recognized as Employee of the Month and Employee of the Quarter for her achievements.

Now serving as a Registered Nurse for Colorado Chiari Institute, Chris will be the first friendly voice and face to meet with new Chiari patients. She helps with their initial check-in process, as well as patients that qualify and elect to have surgery.

Outside of work, Chris enjoys spending time in the outdoors, cooking, walking Matilda - her family dog, and spending time with her husband.