Dr. Kirk E Mitchell, MD

Dr. Mitchell brings a wealth of experience to his position as Medical Director of Colorado Knee and Spine. Dr. Mitchell has practiced medicine in an array of diverse settings and cultures across the globe, and continues to expand his professional skills through his work as a local hospitalist.

Dr. Mitchell and his wife make their home on their ranch north of Boulder, along with 10 horses, 3 dogs, 5 cats and one yak.  In his free time, Dr. Mitchell enjoys horseback riding and driving carts with his shire horses.

Dr. Mitchell is a proud veteran of the US Navy where he served our country with honor for 20 years retiring as a Chief Warrant Officer.   Dr. Mitchell has also served as an addition specialist for the VA.  He is excited to help people with Cellular Regenerative Therapy because it is the leading non-drug pain management alternative available today.


Dr. J. Selano, DC, CME

Dr. Selano is a licensed chiropractor in both Colorado and Georgia.   He graduated with honors in 1993 from Life University in Marietta, GA where he practiced for 25 years.  Dr. Selano is also a certified medical examiner on the DOT registry where he can perform CDL physicals and drug testing.  In his spare time he enjoys spending time fishing, woodworking and singing with his Barbershop quartet Storm Front.

Dr. Selano has been married for 32 years to his wife Mary and has three children:  Julian, 25 who just received his Masters in Pharmaceutical and Biomedical Sciences from the University of Georgia, Camille, 23 who is starting her Masters in Animal Science at CSU this fall after completing her bachelor’s degree at UGA and Annabelle who is in 10th grade at Grandview HS in Aurora.  She loves their performing arts department and loves to dance.  Having moved to Colorado in the fall of 2017 Dr. Selano and his family are enjoying their new home in the rocky Mountains.

Dr. Ruth Vanderkooi

Dr. Ruth Vanderkooi has been Board Certified in Family Medicine for over 30 years, after receiving a Medical Doctorate from the University of Iowa, and completing a Family Medicine Residency program at the University of Michigan. This gave her a broad background in the complexities of medical care.

She is available to offer personalized consulting for her patients, incorporating a functional medicine approach to optimizing health. This includes considering an individual’s unique genetics, nutrition, and food sensitivities.

She has special insight regarding hypothyroidism, having had personal experience with the limitations of the current standards of medical care.

She lives in Denver and her hobbies include book clubs,  yoga,  hiking, gardening, and cooking. She is fortunate to have her two grown children live nearby.

Kelly Jost, MSN, APRN, FNP-C

Kelly is a board- certified Family Nurse practitioner with over 8 years in the health care field, ranging from the Emergency Room, to the Arapahoe County Jail. She enjoys getting to know each person under her care individually and offering unique solutions to their health care needs. She truly believes in reducing the use of medication and instead relying on the body’s natural ability to heal and mend itself. She has had family members experience the wonders of regenerative medicine first hand, and seen the incredible results it can achieve.

She graduated with her Master of Science (MSN) degree from University of Colorado- Colorado Springs and her undergraduate at Denver College of Nursing. She is an active member of the Colorado Society of Advanced Practice Nurses (SIG 30).  
Kelly is a Colorado native, and knows the community very well. In her free time, she enjoys music, traveling, and relaxing with her significant other and golden retriever, Riley. 

Sofia De La Mara, Front Desk

Sofia De La Mara runs our front desk. She comes to us with years of experience in running the front office of medical clinics. Her fantastic personality and great customer service will make your experience here the best in the business. Sofia is the proud mom of 4 year old Alanzo who is a very intelligent young man who amazes and surprises her every day. Sofia is ready to take your call and help you live your best life now!