Devon Lewis MCMSc, PA-C, is a physician assistant who graduated from Barry University in Miami, Florida. She grew up in Utah and completed her undergraduate degree at the University of Utah. She loves the variety that family medicine offers and enjoys working with patients of all ages.


Jeanette Vernon, PA-CJeanette Vernon RN, MPAS-C is a life-long resident of Coalville, Utah. She attended Weber State University and received her Associates Degree in nursing. She began her nursing career at the Summit County Hospital. After it closed she became an employee of Dr. Wain Allen at the Coalville Health Center.

Chaoyu is a nationally board-certified physician assistant graduated from the Rocky Mountain University of Health Professions. She has worked in a wide range of clinical settings in internal medicine, surgery, and emergency medicine prior to school.


Dr. Greg Iverson, DO, FAAFP, DABFPGreg Iverson grew up in Salt Lake City and received his Bachelor of Science Degree in Exercise Physiology from the University of Utah. He attended medical school on a U.S. Army scholarship at the University of North Texas Health Science Center, Texas College of Osteopathic Medicine. He performed an internship and Family Medicine residency at Madigan Army Medical Center, Fort Lewis, Washington.

Jaclyn Piper-Williams, APRN, FNP-CJaclyn Piper-Williams is a Family Nurse Practitioner with Huntsman Cancer Institute's Supportive Oncology and Survivorship team, now joining Kamas Health Center's team for urgent and primary care. She enjoys taking care of patients of all ages, providing care which provides symptom relief and improved quality of life.

Dr. D. Wain AllenDr. D. Wain Allen is a graduate of George Washington University. He completed his Family Medicine Residency at Fort Belvoir, Virginia, and completed his Active Duty Army Service at Fort Bragg, North Carolina. He has been in practice at both of the Coalville and Kamas Clinics since 1984.

Bryant SalmonBryant Salmon was born and raised in Murray, Utah. Following an LDS mission to Hong Kong, China, he attended Brigham Young University and graduated with a Bachelor’s degree in Exercise Science. While doing his undergraduate schooling, he worked in home health and at the pulmonary lab at the University of Utah hospital.