Christian J York, MD
Dr. York earned his medical degree with honors from the University of Toledo College of Medicine and Life Sciences (formerly the Medical College of Ohio) in 1992, and he successfully completed specialized training in obstetrics and gynecology at the Medical University of South Carolina in Charleston in 1996.
He is board certified by the American Board of Obstetrics and Gynecology and maintains annual certification. Dr. York holds surgical specialization in pelvic pain disorders, endometriosis, high-risk pregnancies, minimally invasive surgery, and infertility problems. Prior to North Springs Ob/Gyn, Dr. York was an obstetrician and gynecologist working in private practice in South Carolina before he moved to Colorado Springs in 2004.
Dr. York is a dedicated husband and father of four girls and spends much of his free time involved with their activities. He also enjoys camping and skiing with his family, running, and climbing Colorado 14ers with his girls.
Kacey Combs, WHNP-BC
Kacey Combs grew up in western Montana. She received her Master of Science in Nursing degree from Duke University where she graduated at the top of her class.
Before becoming a Board-Certified Nurse Practitioner, she worked as a labor and delivery nurse for five years. Kacey practiced as a Women's Health Nurse Practitioner in Hawaii before settling in Colorado in 2022 with her family.
Kacey believes in empowering women of all ages by taking time to teach them about their bodies, reproductive health and the role they have in their own healthcare.
In her free time, Kacey enjoys traveling, paddleboarding, hiking and spending time with her husband and three children.
Tiffany Greene, WHNP-BC
Tiffany Greene graduated at the top of her class with her Master of Science in Nursing degree from Duke University to become a Board-Certified Nurse Practitioner in Women’s Health.
Before joining North Springs Ob/Gyn, Tiffany worked as a registered nurse for several years at both a high-risk women's hospital in Orlando, Florida and then at UCHealth on the postpartum, ante-partum and labor and delivery units. These experiences inspired her to continue to serve women in her career.
Tiffany continues to be passionate about empowering women to feel confident in their health journey through comprehensive, compassionate health care and intentional education amidst the growing body of social health information.
In her free time, Tiffany enjoys spending time with her husband and two dogs as well as trying new coffee shops, reading a good book, and crafting at home.
Makenzi Miller, PA-C
Makenzi Miller grew up in Oklahoma where she received her Master of Science Degree in Physician Associate Studies at the University of Oklahoma School of Medicine. Makenzi has previously worked in primary care and behavioral health. Her experience in these fields allows her to approach women’s health with a well rounded perspective, addressing both physical and mental well-being.
She is dedicated to delivering patient-centered care and empowering women to make informed decisions about their health. Makenzi values building lasting relationships with her patients and ensuring they feel heard and supported throughout every stage of life.
Outside of work, she spends time with her husband and golden retriever in the Colorado mountains. They love skiing, hiking, and camping.
