Caitlin Ahern, M.D.

Dr. Caitlin Ahern received her medical degree in 1993 from the University of Utah School of Medicine.     Caitlin_AhernShe then went on to complete her residency at Poudre Valley Hospital in Ft. Collins, CO.  Dr. Ahern initially started working for the Yuma District Hospital in December, 1995, as a weekend locum, covering the Emergency Room.  She worked occasional weekends through July, 1996.  In September, 1996, Dr. Ahern began working for the Yuma District Hospital as a family practitioner.  In July, 2002, Dr. Ahern made a difficult decision to leave the Yuma District Hospital in order to start her own practice in Ft. Collins.  It didn’t take her long to learn that trying to run her own business took too much time away from her love of practicing medicine.  She rejoined our medical staff in 2006, working at the Akron Clinic.

Dr. Ahern’s expertise in medicine, certification in medical acupuncture, coupled with her sincerity and compassion for her patients helped her to successfully build a loyal and trusting cliental.

Crystal Askew, M.D.Crystal_Askew

 Crystal Askew received her medical degree from the University of New Mexico in 1995.  She participated in a primary care curriculumspecifically designed to help medical students prepare for family medicine, internal medicine or pediatrics.  She completed her residency in Family Medicine at Poudre Valley Hospital in Fort Collins in 1998.

She began private practice in August, 1998 and continued working in Fort Collins until February,2014 when she closed her practice in order to pursue more balance between her work and home life. She joined the Akron Clinic in 2014.


Tiffany Deering, P.A.-C

Tiffany graduated from the Physical Assistant program at University of Colorado Health and Sciences, the Rural Medicine Track. Her area of specialty is Pediatrics.  She enjoys doing clinical procedures.

Tiffany joined the Akron Clinic in 2008.

Natasha Deming, M.D.

Dr. Deming grew up in Orange Park, Florida. She received her Undergraduate and Medical degrees at the University of Florida, then moved to Colorado to complete residency at Rose Family Medicine Residency in Denver. During residency, she became enamored with Yuma while on a rotation here. She joined YDHC in July 2017. Her clinical practice focuses on broad spectrum Family Medicine including preventative medicine, care of chronic conditions, pediatrics and women’s health, and emergency care.  She especially enjoys the opportunity to form open and trusting relationships with her patients. She performs a variety of procedures including long term birth control insertion, fracture splinting/casting, joint injections, skin conditions, and others. In her spare time she enjoys cooking, fishing, martial arts, traveling and reading.


John Glick, M.D.John_Glick

Dr. Glick, a Colorado native and a graduate of the University of Colorado at Boulder, received his degree in Medicine from the Chicago Medical School.   He completed his residency in Family Medicine at Rose Medical Center in Denver.
Dr. Glick joined the YDHC medical staff in 2009.  His practice focuses on family care from pre-natal care, pediatrics, adult, and geriatrics.  Procedures that he performs at YDHC include IUDs, Implanon, colposcopy, stress tests, dermatological procedures, and joint injections.

Dr. Glick enjoys a variety of outdoor activities, including biking, hiking, climbing and cross-country skiing in the back country, with his family in the Colorado mountains.

Heath Horton, FNPHeath_Horton_web

Heath grew up in DeWitt, AR. After completing an EMT/Paramedic program in McGehee, AR, he began a nursing program at SEARK College. He completed his LPN and then finished an LPN to RN transition program at AASN at UA-Monticello. For his BSN and MSN-FNP he completed course work at Chamberlain College of Nursing. He will soon start a DNP program. He completed his FNP program because he knew he would be able to better serve the patients that he wanted to help. Heath loves the outdoors, acrylic and oil painting, and reading and studying medical information.


Charlie_ManterCharlie Manter, D.O.

Charles (Charlie)Manter earned his D.O. degree from the Texas College of Osteopathic Medicine and completed his residency at Colorado Springs Osteopathic Hospital in 1993.  He received his Bachelor of Science from Western State College in Gunnison, CO. Dr. Manter’s area of interest include chronic disease management and acute medical problems. He offers Osteopathic Manipulative Therapy for acute and chronic musculoskeletal problems.

Dr. Manter has practiced at Yuma District Hospital and Clinics over 15 years.  Since 2002, Dr. Manter is at his own practice located in Greeley and splits his time between his Greeley location and Yuma.

Matt_NolandMatt Nowland, M.D.

Dr. Matthew Nowland grew up in rural Missouri  and received his medical degree from the University of Missouri School of Medicine in 1999. He completed his residency in Family Medicine at Poudre Valley Hospital in Fort Collins in 2002.

Dr. Nowland joined the YDHC medical staff in 2002. His practice focuses on family care from pre-natal care, pediatrics, adult and geriatric care. He enjoys preventative well care, chronic disease management and acute care medicine. Dr. Nowland performs many clinical procedures including colposcopy, stress testing, multiple skin and orthopedic procedures.

Dr. Nowland enjoys spending time with his wife, Erin, and their four children, following local high school sports teams, running, cycling, hiking, camping and fishing.  He also enjoys mission work and serves as the medical director of Global Refuge International (

Rebecca Switzer, M.D.Rebecca Switzer_2

Dr. Rebecca Switzer joined the Yuma District Hospital team in January of 2017. She earned her medical degree from the University of Maryland and completed her Family Medicine residency at Saint Joseph Hospital in Denver. Dr. Switzer is passionate about rural medicine and enjoys treating both emergency and chronic conditions. She cares for patients of all ages and enjoys practicing a variety of procedures related to women’s health, skin conditions, fracture management, and emergency care. In her free time she loves to travel, mountain bike, snowboard, rock climb, and salsa dance.

Karen Sibersweig, M.S.

Rebecca Switzer_2

Karen is a Licensed Professional Counselor and Certified Addictions Counselor, with over 39 years of experience in the fields of mental health, substance abuse, health psychology and rehabilitation medicine. She obtained a Master of Science Degree in Rehabilitation Counseling from Hunter College, City University of New York in 1977. She specializes in individual, couples and family therapy and provide goal directed treatment that utilizes psychodynamic, cognitive and behavioral theory to meet each client's specific needs. 

Rob Wolfsohn, Psy.DRebecca Switzer_2

Dr. Wolfsohn has a doctorate in counseling psychology from the University of Northern Colorado. To obtain that degree, he was required to complete four years of course work and practicum clinical work as well as a one-year internship in clinical psychology. He completed his one-year pre­doctoral clinical internship at the University of Texas Health Sciences Center and Southwest Medical School in Dallas, Texas which included clinical supervision. Dr. Wolfsohn sat for and passed the psychologist licensure exam, which included taking a national exam, a jurisprudence exam, as well as an oral exam. He is  a licensed psychologist in Colorado,