Five providers join UCHealth in northern Colorado

Experts specialize in family medicine, surgery, occupational health, cardiology, physical medicine and rehabilitation
September 3rd, 2015

Five new providers joined the University of Colorado Health team in northern Colorado in August.

Dr. Kimberly Siegel is the newest addition at UCHealth Occupational Health, 4647 Snow Mesa Drive, Suite 200, in Fort Collins.

Dr. Kimberly Siegel

Siegel is particularly interested in evaluation, treatment and prevention of work-related illnesses and injuries. She enjoys partnering with patients to make a care plan that facilitates recovery and return to normal work and personal activity.

“I enjoy learning about all the kinds of work people do and thinking about how that work fulfills needs, promotes happiness, or otherwise contributes to society,” she said.

Siegel earned a medical degree from University of New Mexico School of Medicine in Albuquerque, N.M., in addition to a master’s degree in public health from Loma Linda University School of Public Health in Loma Linda, Calif. She has completed a residency in occupational and environmental medicine at University of Colorado School of Medicine in Denver. She also has completed a residency in preventive medicine at Loma Linda University Medical Center.

For more information about the UCHealth Occupational Health team in Fort Collins, call 970.495.8450.

Dr. Katie Weatherhogg

Dr. Katie Weatherhogg has joined the team at UCHealth Physical Medicine and Rehabilitation in the North Medical Office Building at Medical Center of the Rockies, 2500 Rocky Mountain Ave. in Loveland.

She takes a holistic and conservative approach to bone, muscle and nerve disorders with the goal of improving the quality of life for all patients and to make a positive impact on their health.

Her clinical interests include electromyogram and nerve conduction studies, post-stroke spasticity, trigger point injections, ultrasound-guided joint and tendon injections, medical acupuncture, prosthetics and sports medicine.

Weatherhogg earned a medical degree from University of Minnesota Medical School in Minneapolis. She completed an internal medicine internship at Dartmouth-Hitchcock Medical Center in Lebanon, N.H., and a physical medicine and rehabilitation residency at Carolinas Medical Center in Charlotte, N.C.

To schedule an appointment with Weatherhogg or for more about UCHealth Physical Medicine and Rehabilitation in Loveland, call 970.203.7000.

Dr. Alyssa Gonzalez

Dr. Alyssa Gonzalez has joined the team of providers at UCHealth Family Medicine at Peakview Medical Center, 5881 16th St. in Greeley.

She enjoys understanding the needs and goals of her patients. “In this way, I strive to develop a partnership with each patient. This is the best way to achieve and maintain their health goals together,” she said.

She is particularly interested in preventive medicine, children’s and adolescent medicine, women’s health, senior health and nutrition. Her research interests include hypertension, diabetes and depression management.

She earned a medical degree from Des Moines University College of Osteopathic Medicine in Des Moines. She also completed a residency at North Colorado Family Medicine Residency Program in Greeley.

To schedule an appointment with Gonzalez or for more information about services offered at UCHealth Family Medicine in Greeley, call 970.313.2700.

Dr. Derek Leopold

Dr. Derek Leopold has joined the general surgery team at UCHealth Longmont Clinic, 1925 W. Mountain View Ave.

He believes his role as a general surgeon is to provide patients with the tools and support they need to face what may be a scary and difficult time in their lives.

“I believe helping to educate my patients and prepare them for the road ahead is paramount. My bottom line is to treat patients like real people and improve their quality of life,” he said.

His clinical interests include advance laparoscopic surgery, colorectal procedures, endocrine conditions, acid reflux surgery and hernias.

He earned his medical degree from University of Colorado School of Medicine in Denver and completed a general surgery internship and residency at Exempla Saint Joseph Hospital in Denver.

For more information about the general surgery team at UCHealth Longmont Clinic, go to or call 720.494.3135.

Brittney Gillespie

Physician assistant Brittney Gillespie also joined the team of providers at UCHealth Longmont Clinic, 1925 W. Mountain View Ave. She is caring for cardiovascular patients.

As a physician assistant, her most pivotal role focuses on disease prevention, patient education and development of individualized treatment plans.

“I am passionate about educating patients about their health and explaining the pathology of their diseases in ways that they can understand. Ensuring that a patient understands his or her disease is crucial to the success of any treatment plan,” she said.

Her clinical interests include hypertension, hyperlipidemia, electrophysiology, cardiac arrhythmias, valvular heart disease, congestive heart failure, cardiomyopathies, ischemic heart disease/acute coronary syndrome, pericarditis, endocarditis and cardiac tumors.

She earned a master’s degree in physician assistant studies from South University in Savannah, Ga.

To schedule an appointment with Gillespie or for more information about UCHealth Longmont Clinic, call 720.494.3117 or go to

About UCHealth

UCHealth is a Front Range health system that delivers the highest quality patient care with the highest quality patient experience. UCHealth combines Memorial Hospital, Poudre Valley Hospital, Medical Center of the Rockies, Colorado Health Medical Group and University of Colorado Hospital into an organization dedicated to health and providing unmatched patient care in the Rocky Mountain West. Separately, these institutions can continue providing superior care to patients and service to the communities they serve. Together, they push the boundaries of medicine, attracting more research funding, hosting more clinical trials and improving health through innovation.