About Us

Providing you with board certified, world renowned  doctors for exceptional care.

John K. Hayes, Jr., MS, MD

Dr. Hayes has been performing Brachytherapy procedures since 1988 and has performed thousands of implants. Dr. Hayes is a native of Provo, UT. He received a B.S. degree in Chemistry in 1977 (Cum Laude) and a M.S. degree in Physical Chemistry in 1980 from Brigham Young University. In 1983, Dr. Hayes graduated with his Doctor of Medicine degree from the University of Utah. He served his internship and residency in Radiation Oncology at the University of Utah from 1983-1988. Dr. Hayes is board certified in Radiation Oncology by the American Board of Radiology.

Roger S. Hansen, MD

Dr. Hansen is a native of Salt Lake City, UT. He earned a Bachelor's degree from the University of Utah in 1992, and a Doctor of Medicine degree from Creighton University in 1995 where he graduated with Honors. He trained in Radiation Oncology at the University of Arizona completing in 2000. Dr. Hansen joined GammaWest Services in July 2000, and he has performed thousands of brachytherapy procedures since that time. In addition to a busy clinical practice, he is active in training Radiation Oncologists from around the USA and Canada the techniques and rationale of modern brachytherapy implants. His primary interests are prostate, breast, endometrial, and cervix cancer. He is board certified in Radiation Oncology by the American Board of Radiology.

C. Leland Rogers, MD

Dr. Rogers is a native of Kentucky. He received his undergraduate degree from Brigham Young University and returned home for medical school at the University of Kentucky where he graduated Cum Laude in 1986. Dr. Rogers completed a residency in Radiation Oncology at the University of North Carolina in 1991. He has been involved in clinical and academic practices, and is well known for his specialization in the treatment of Gynecologic and Central nervous system tumors. Dr. Rogers is board certified in Radiation Oncology by the American Board of Radiology.

Robert A. Harris, MD

Dr. Harris trained in Radiation Oncology at the National Cancer Institute in Bethesda, Maryland, from 1996-2000. He subsequently became an attending physician in that program, serving as the Radiation Oncology Service Manager at the National Naval Medical Center. In that role he helped start the first intensity modulated radiation therapy (IMRT) program in the Washington D.C. Metropolitan Area. Upon completion of his Naval service in 2004, he relocated to Utah bringing with him a wealth of experience in using modern radiation therapy techniques, which have been shown to improve treatment outcomes and minimize side effects. Dr. Harris is board certified in Radiation Oncology by the American Board of Radiology.

Prior to his training in Radiation Oncology, Dr. Harris earned a B.S. degree in Chemical Engineering from Brigham Young University in 1988, and his medical degree from the Uniformed Services University of the Health Sciences in 1992. He completed an internship at the Naval Hospital in San Diego, California in 1993. From 1993-1996 he served as an Undersea Medical Officer at the Submarine Medical Research Laboratory in New London, Connecticut. He is also board certified in Undersea and Hyperbaric Medicine by the American Board of Preventive Medicine.

Ray S. Richards, MD

Dr. Richards was born in New York City. He graduated Cum Laude from Brigham Young University in Chemical Engineering and earned his Doctor of Medicine degree from the University of Utah in 1985. Dr. Richards completed an Internship in Internal Medicine at St. Joseph’s Hospital and Medical Center in Phoenix and then trained in radiation oncology at Loma Linda Medical Center in California. Dr. Richards has practiced in St. George, Utah since 1990. Dr. Richards is board certified in Radiation Oncology by the American Board of Radiology.

James W. Clarke, MD

Dr. Clarke is a Utah County native. He developed an early interest and aptitude for medical science, which he applied as an undergraduate at Brigham Young University. He completed his studies in 2000 and moved his family to Columbus, Ohio, where he completed 9 years of medical training. He graduated from The Ohio State University College of Medicine in 2004. During his time there he developed a special interest in Oncology through clinical experiences, and through a laboratory research fellowship in cancer genetics. Following medical school, he went on to complete his residency in Radiation Oncology at the Arthur G. James Hospital at Ohio State, identified by U.S. News & World Report  one of the top 20 hospitals for oncology in the United States. At Ohio State he gained valuable experience in a wide range of cutting edge radiation therapy technologies, including image guided-intensity modulated radiation therapy, brain and body stereotactic radiosurgery, and high dose rate brachytherapy. Dr. Clarke has been  involved with oncology research in the clinic, and in the laboratory, and has authored a number of scientific publications in the field. Dr. Clarke joined Gamma West in 2009. He practiced primarily at our St. George office until 2018, then moved to our Orem location where he now works as the primary physician at our new Timpanogos Cancer Center.

Brandon J. Fisher, DO

Dr. Fisher is a radiation oncologist with Gamma West Services in Utah. He specializes in all forms of radiation therapy ranging from the traditional form of external beam irradiation to stereotactic radiosurgery, brachytherapy, and intensity modulated radiation therapy. He preformed his residency in Philadelphia at Drexel University. Dr. Fisher sits on the Young Physicians’ Committee to the Board of Chancellors of American College of Radiation Oncology (ACRO). He sits on the International Committee, African workforce with, the American Society of Radiation Oncology (ASTRO). Brandon is an avid adventurer and humanitarian. He is the President of Radiating Hope, a non-profit he founded to provide radiation equipment and training to developing countries. He was a finalist for the American Society of Clinical Oncology (ASCO) Humanitarian Award. He loves the outdoors and is a volunteer member of the Weber County Search and Rescue team. He loves being a father of three wonderful kids.

Thomas B. Skidmore, MD

Dr. Skidmore is a Utah native, born and raised in Salt Lake City. He completed his undergraduate studies at Westminster College (Magnum Cum Laude) in 2002 and also played Varsity Soccer while there. Afterwards, he attended the University of Utah, School of Medicine graduating in 2007 with honors. During his time there he developed a special interest in Oncology medicine through personal and clinical experiences, and through a small research grant he was awarded in between his first and second year.

Following medical school, he completed a one-year internship at Evanston Northwestern Healthcare on the north shore of Chicago, IL. He went on to complete his residency in Radiation Oncology at the Barrett Cancer Center at The University of Cincinnati. In Ohio he gained valuable experience in a wide range of cutting edge radiation therapy technologies, including image guided-intensity modulated radiation therapy, stereotactic radiosurgery, and high dose rate brachytherapy. He served as the chief resident in radiation oncology and also was awarded a HDR brachytherapy fellowship through the American Brachytherapy Society.

Ryan J. Bair, MD

Board-certified Radiation Oncologist Dr. Ryan Bair is a fellowship-trained Radiation Oncologist at Idaho Cancer Center at EIRMC. He oversees radiation treatment for oncology patients, and specializes in High Dose Rate Brachytherapy. Dr. Bair earned his Fellowship at the prestigious Brigham and Women’s Hospital in Boston and at Harvard Medical School; completed Residency at the University of Chicago Medical Center, and graduated from Medical School with honors from the University of Utah.

Dan Miller, MD

Dr. Daniel Miller was born and raised on a small family farm in Southeast Idaho. He developed a strong desire to become a physician after watching members of his own family struggle with chronic illness. He attended college at Idaho State University and graduated Summa Cum Laude, before leaving his home state to attend medical school at Creighton University in Omaha, NE. While in medical school he discovered his future career path while working with the oncology team caring for a young boy recently diagnosed with lymphoma. His desire to care for those affected by cancer continued to grow, and he went on to complete an internship and residency in Radiation Oncology at the Mayo Clinic in Jacksonville, FL. During his residency he was able receive training in proton therapy at the University of Florida and the Mayo Clinic in Scottsdale, AZ. He also spent time at Washington University in St. Louis to gain additional experience in the treatment of advanced gynecologic malignancies with high dose rate brachytherapy. He served as chief resident in radiation oncology, and was the winner of the poster category at the American Medical Association Research Symposium in 2016 for research involving stereotactic radiosurgery. He is excited to finally be back home in Southeast Idaho, and serve those in the community that raised him. 

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