Dedication. Experience. Expertise.

Medical Oncology

Justin A. Call, M.D.

Dr. Call grew up in Salt Lake City, UT and attended the University of Utah.  He received his medical degree from the University of Colorado Health Sciences Center in 2001. He completed a residency in internal medicine at the University of Colorado Health Science Center in 2004.  Dr. Call earned Board Certification in internal medicine in 2004.  He completed fellowship training in hematology and medical oncology at the University of Colorado Health Sciences Center in 2008, during which time he served as Chief Fellow. Dr. Call has served as the Physician Director of Cancer Research at Northern Michigan Regional Hospital. He is board certified in internal medicine, hematology, and medical oncology, and is a member of several medical societies including the American Medical Association, American Society of Hematology, and the American Society of Clinical Oncology.

Nitin B. Chandramouli, M.D.

Dr. Chandramouli earned his medical degree from the University of Iowa in 1996, where he also served an internship and residency in Internal Medicine. This was followed by a fellowship in Hematology/Oncology at the University of Utah, Huntsman Cancer Institute. During his fellowship, he served as Chief Fellow for two years. He is board certified in both Oncology and Hematology. Dr. Chandramouli is a member of the American Society of Clinical Oncology, American Society of Hematology, and the American College of Physicians.

Kent C. DiFiore, M.D.

Dr. DiFiore earned his medical degree at George Washington University School of Medicine in 1975. He served an internship and residency in Internal Medicine and a fellowship in Hematology/Oncology at the University of Utah School of Medicine. He is board eligible in both Internal Medicine and Medical Oncology. Dr. DiFiore is a past president of the Utah chapter of The American Cancer Society. He is currently medical director of two hospice agencies along the Wasatch Front.

Richard N. Frame, M.D.

Dr. Frame earned his medical degree at Wayne State University in 1981 and completed a residency at Henry Ford Hospital in Detroit, Michigan. He completed fellowship training in cancer treatments at the University of Utah. Dr. Frame has practiced oncology along the Wasatch Front since 1987. He is former president of the American Cancer Society, Utah Division. Dr. Frame is board certified in Internal Medicine and Medical Oncology.

Xylina T. Gregg. M.D.

Dr. Gregg attended Baylor College of Medicine in Houston, TX where she earned her medical degree in 1991. She completed a residency in Internal Medicine at the University of Alabama at Birmingham followed by a Hematology/Oncology fellowship at the same institution. She was formerly Chief of Hematology/Oncology at Kelsey-Seybold Clinic in Houston, TX. Dr. Gregg has been recognized by the American Medical Women’s Society with the Janet M. Glasgow Achievement Award and has authored chapters on Hematology topics in several medical textbooks. She has served as an Adjunct Clinical Assistant Professor of Hematology/Oncology at the University of Alabama at Birmingham and as a Clinical Assistant Professor at Baylor College of Medicine in Houston, TX. Dr. Gregg is board certified in Medical Oncology and Hematology.

W. Graydon Harker, M.D.

Dr. Harker earned his medical degree in 1975 from the University of Utah School of Medicine before attending Johns Hopkins Hospital in Baltimore, Maryland to complete an internship and residency in Internal Medicine. He also completed fellowships in Medical Oncology and Clinical Pharmacology at Stanford University School of Medicine. Dr. Harker is board certified in Internal Medicine and Medical Oncology. He is a Clinical Associate Professor of Medicine at the University of Utah School of Medicine and has served as chief of the Hematology/Oncology section at the Veterans Medical Center in Salt Lake City.

Regina C. Klein, M.D.

Dr. Klein attended the State University of Rio de Janeiro, Brazil where she earned her medical degree in 1983. She was appointed chief resident of Internal Medicine at New York University Affiliated/Beekman Downtown Hospital and completed a Medical Oncology fellowship at the National Cancer Institute. Dr. Klein is board certified in Internal Medicine and board eligible in Medical Oncology. She has also been recognized for her research publications in the area of breast cancer.

Gregory J. Litton, M.D.

Dr. Litton earned his medical degree from the University of Washington School of Medicine in Seattle in 1983. He served an internship and residency in Internal Medicine at the University of Wisconsin in Madison. Dr. Litton trained in research at the University of Wisconsin Clinical Cancer Center. He completed his clinical training with a fellowship in Hematology/Oncology at the University of Utah School of Medicine. He is board certified in Internal Medicine and Medical Oncology.

William E. Nibley, M.D.

Dr. Nibley earned his medical degree in 1991 from the George Washington University School of Medicine. He completed an internship and residency in Internal Medicine followed by a fellowship in Hematology/Oncology at the University of Utah School of Medicine. He is a member of the clinical faculty in the Division of Hematology/Oncology at the University of Utah. Dr. Nibley is board certified in Internal Medicine and Medical Oncology and board eligible in Hematology.

Nathan T. Rich, M.D.

Dr. Rich received his undergraduate degree from Brigham Young University in Provo, UT. He attended The Ohio State University College of Medicine and Public Health in Columbus, OH where he earned his medical degree in 2000. He completed both an internship and residency at The Ohio State University Medical Center in the Department of Internal Medicine , and continued his training with an Oncology fellowship in Iowa City, IA at the University of Iowa Hospitals and Clinics, Department of Internal Medicine, Division of Hematology, Oncology and Blood Marrow Transplantation. Dr. Rich is board certified by the American Board of Internal Medicine in both Internal Medicine and Medical Oncology. He holds professional affiliations with the American Society of Clinical Oncology, American Society of Hematology, the American Medical Association and the American College of Physicians-American Society of Internal Medicine.

John C. Ruckdeschel, M.D.

Dr. Ruckdeschel graduated with a Bachelor of Science degree from Rensselaer Polytechnic Institute in Troy, NY. He received his Medical Degree from Albany Medical College, Albany, NY. He worked as a Senior Medical Assistant Resident at Beth Israel Hospital in Boston, MA and completed a medical internship at Johns Hopkins Hospital in Baltimore, MD. He completed a fellowship in medical oncology at the National Cancer Institute and was previously CEO of the Moffitt Cancer Center in Tampa, FL, the Karmanos Cancer Institute in Detroit, MI and the Nevada Cancer Institute in Las Vegas, NV. Widely published and the recipient of numerous professional awards, Dr. Ruckdeschel is currently serving as Medical Director of the Oncology Program and Services at Intermountain Healthcare. He is board certified in internal medicine and medical oncology. His practice is focused on thoracic malignancies.

Scott Samuelson, M.D.

Dr. Samuelson earned his medical degree from the University of Utah School of Medicine in 2002. He completed a residency in Internal Medicine at Duke University in Durham, NC and a fellowship in Hematology and Oncology at the Huntsman Cancer Center Institute at the University of Utah School of Medicine. Dr. Samuelson is board certified in Internal Medicine, Hematology and Oncology.

Jason M. Stinnett, M.D.

Dr. Jason Stinnett earned his medical degree from the University of Arkansas in Little Rock, Arkansas. He completed both a residency in Internal Medicine and a fellowship in Hematology/Oncology at the University of Utah. Dr. Stinnett is an active clinical research investigator and has published several academic studies. He is a member of the American Society of Clinical Oncology and the Southwest Oncology Group. He serves as a Diplomate with the American Board of Internal Medicine, where he is certified in both Internal Medicine and Medical Oncology.

Jonathan Whisenant, M.D.

Prior to joining UCS in 2005, Dr. Whisenant was a Clinical Fellow in Medical Oncology at University of California San Francisco Medical Center where he earned his medical degree in 1998. He was a resident in internal medicine at University of Colorado Health Sciences Center and a staff physician at The Permanente Group in Walnut Creek, CA. Dr. Whisenant has published and presented his research to peers on colorectal and liver cancers and gastrointestinal tumors. He earned a bachelor‚s degree in history from Brigham Young University in 1993.

Radiation Oncology Staff Physicians

Vilija Avizonis, M.D.

Dr. Avizonis earned her medical degree from the University of New Mexico School of Medicine. She completed an internship and residency in Radiation Oncology at LDS Hospital, combined with a Fellowship in Head and Neck Radiation Oncology at The University of Iowa Hospitals and Clinics. Her special interests are head and neck cancers, organ preservation, breast cancer and colorectal cancer. Dr. Avizonis is a question writer for the National written board exams in Radiation Oncology, as well as an oral board examiner. Dr Avizonis is a member of the American Society of Therapeutic Radiology and Oncology, and the American Society of Clinical Oncology. She maintains board certification from the American Board of Radiology.

A. Jennifer Fischbach, M.D.

Dr. Fischbach earned her medical degree from the University of Utah College of Medicine in 1978. She completed a residency in Clinical Radiation Oncology at LDS Hospital. Dr. Fischbach is a member of the American College of Radiation Oncology and maintains board certifications from the American Board of Radiology. Her special interest is in breast cancer.

R. Jeffery Lee, M.D.

Dr. Lee earned his medical degree from Emory University School of Medicine in Atlanta, Georgia. He completed an internship and residency in Radiation Oncology at LDS Hospital. He is a Clinical Assistant Professor of Radiation Oncology at the University of Utah. Dr. Lee is a member of the American Society of Clinical Oncology and the American Society for Therapeutic Radiology and Oncology. He maintains board certification from the American Board of Radiology.

Radiation Oncology Dosimetrist

Preston Wakefield, Medical Dosimetrist

Mr. Wakefield received his board certification as a Radiation Therapist at LDS Hospital in 1974 and has been a member of the American Association of Medical Dosimetrists since 1976. He served as a Radiation Therapist and then as Chief Medical Dosimetrist at LDS Hospital for 29 years before joining Utah Cancer Specialists in 2003.

Penny Moosman

Ms. Moosman holds an Associates degree in Nuclear Medicine technology from Weber State in Ogden, Utah. She also earned an associates degree in radiology from the University of Utah School of Radiology.

Support And Rehabilitative Care

Jane E. MacPherson, M.D.

Jane E. MacPherson, MD, earned her medical degree at Michigan State University (MSU) in East Lansing, Michigan. She served as the Associate Director of Palliative Medicine for the Urban Central Region of Intermountain Healthcare in Salt Lake City, Utah. Dr. MacPherson is board certified in Family Medicine, Hospice and Palliative Medicine and board eligible in Medical Acupuncture. She is a contributing physician and consultant on palliative care issues for "Healing Conversations," a nationally distributed cancer care educational program.

Gregory J. Miller, M.D.

Dr. Miller earned his medical degree at Brown University in Providence, Rhode Island in 1981. He completed an internship at Pawtucket Memorial Hospital of Family Medicine and a residency in physical medicine and rehabilitation at the Hospital of the University of Pennsylvania. Dr. Miller is certified by the American Board of Pain Medicine, the American Board of Physical Medicine and Rehabilitation, and the American Board of Hospice and Palliative Medicine. Dr. Miller is vice president and a founding member of the Utah Academy of Pain Medicine and president of the Advisory Board for Cancer Pain Relief Utah.

Mid-level Nurse Practitioners and Physician Assistants

Kara Agresta, MPA, PA-C

Kara Agresta, MPA, PA-C, earned Bachelor of Science degree from Merrimack College in North Andover, MA and a Masters of Physician Assistant Studies from the University of Utah School of Medicine. She has worked in both cardiology and heart failure/transplant.  She is certified by the National Commission on Certification of Physician Assistants.

Kristin Barber, NP

Kristin E. Barber, NP, earned a master of nursing degree from the University of Utah in 2009 and graduated magna cum laude. She has extensive experience in hematology/oncology. She received her bachelor of science in nursing from the University of Colorado Health Sciences Center in 2003. She is board certified as a Family Nurse Practitioner.

Shirley Bleak, DNP, FNP-C

Shirley Bleak, DNP, FNP-C, earned her bachelor of science in nursing from the University of Utah and completed a master of sciences in nursing at Westminster College in 1998. She received her doctorate of nursing practice in 2009 from the University of Utah. She is board certified as a Family Nurse Practicioner.

Bruce Bolonesi, PA-C

Mr. Bolonesi, PA-C, earned a bachelor of science in Kinesiology from California State University, Fullerton, CA. He did graduate work at San Diego State University with emphasis in exercise physiology, cardiac rehabilitation and adult fitness. He graduated from the University of Washington Physician Assistant Program and has spent most of his career in oncology. He is a fellow in the Washington Academy of Physician Assistants and most recently worked as a senior physician assistant at the Fred Hutchinson Cancer Research Center in Seattle, WA. He is board certified by the National Commission on Certification of Physician Assistants (NCCPA).

Melissa Glick, PA-C

Melissa Glick, PA-C, graduated with honors and received her Bachelor of Science degree from the University of Massachusetts in Amherst, MA.  She holds a Master of Science degree from the University of Medicine & Dentistry of New Jersey.  Previously, she worked as lead practitioner and coordinator for the Interventional Radiology Department and ran the out patient clinic at Beth Israel Deaconess Medical Center in Boston, MA.  She is a member of the American Academy of Physician Assistants.

Richard E. Hanson, PA-C

Mr. Hanson, PA-C, graduated from the Utah Physician Assistant Program in 1988. He also has a bachelor's degree in Health Care Management. He worked for seven years at the Department of Hematology/Oncology at the Salt Lake Veterans Administration Health Care System. He also served as a clinical instructor for the Utah Physician Assistant Program. He is a member of the Association of Physician Assistants in Oncology and maintains certification with the National Commission on Certification of Physician Assistants.

Anne Marceau, NP

Ms. Marceau, NP, earned a bachelor's degree in Nursing in 1988 from Fairfield University in Connecticut. She earned a master's degree in Nursing and a Nurse Practitioner Certification from Massachusetts General Hospital Institute for Health Professionals in 1997. Most of her nursing career has been in Oncology and Bone Marrow Transplant. She worked with the Utah Blood and Marrow Transplant Program at University of Utah Health Sciences Center, Primary Children's Medical Center and LDS Hospital. She is board certified as an Adult Nurse Practitioner.

Anita McDonald, NP

Anita McDonald, NP, earned a Bachelor of Science degree in Nursing from Brigham Young University where she graduated cum laude.
Fluent in Spanish, she has also been an oncology nurse at Intermountain Medical Center.

Shauna Olsen, NP

Shauna Olsen, NP, earned a master of nursing degree from Westminster College In 2009. She received her bachelor of science in nursing, graduating cum laude from Westminster College in 2002.

Nancy Weber, PA-C

Ms. Weber, PA-C, received her Physician Assistant training from the University of Utah. She graduated Magna Cum Laude from Weber State College with a bachelor's degree in Allied Health Education/Administration and an associate's degree in Respiratory Therapy. She previously worked for 10 years as Director of Cardiopulmonary Services at Davis Hospital Medical Center. Ms. Weber holds certification with the National Commission for Certification of Physician Assistants.

Nancy Walker Mortensen, FNP, ANP

Nancy Walker Mortensen, FNP, ANP, warned her Bachelor's degree inNursing in 1988 from Eastern Kentucky University . At the University of Utah she earned a master's degree specializing in the Adult Nurse Practicioner and Oncology Clinical Nurse Specialists programs. She holds dual certifications as an Adult Nurse Practicioner and as a Family Nurse Practitioner through the American Nuurses Association.

Intermountain Blood and Marrow Transplant Program

Julie Asch, M.D.

Dr. Julie Asch earned her medical degree from Rutgers University Medical School in New Brunswick, NJ. She served as a pediatric intern, resident and chief resident at the Robert Wood Johnson Medical School (University of Medicine and Dentistry of New Jersey) in New Brunswick, NJ and completed fellowship training at both Mount Sinai Hospital, New York City, NY and the University of Utah in Salt Lake City, UT. Dr. Asch served as director of the Robert Wood Johnson University Hospital Stem Cell Laboratory, director of the Pediatric Hematology and Oncology clinic at the Cancer Institute of New Jersey, director of the Apheresis Program for the Bone Marrow Transplant Program at the University of Utah and medical director of Utah Blood and Marrow Transplant Total Quality Management. She has been an assistant professor at the UM.D.NJ-Robert Wood Johnson Medical School in New Brunswick, NJ and at the University of Utah. Dr. Asch is widely published and is a member of the American Association of Blood Banks, the American Society of Hematology, the Children’s Oncology Group and is a fellow with the American Academy of Pediatrics.

Daanish Hoda, M.D.

Daanish Hoda, MD, earned his medical degree from the University of Miami School of Medicine in Miami, Fl. He completed an internal medicine Residency at the Mayo Clinic Graduate School of Medicine in Rochester, MN and served in hemtaology and oncology at the H. Lee Moffitt Cancer Center & Research Institute in Tampa, FL. Dr. Hoda is certified in internal medicine by the American Board of Internal Medicine.

Brigitta H. Mitchell, M.D.

Brigitta Mitchell, N.D., earned Her medical degree from the State University of New York at Stony Brook in New York. She completed both an internal medicine residency and internship at the University of Utah School of Medicine is Salt Lake City. Dr. Mitchell served a fellowship in Hematology/Oncology at the University of Utah School of Medicine. She is certified in internal medicine, hematology and medical oncology by the American Board of Internal Medicine.

Kelly Konopa, M.D.

Kelly Konopa, MD,  earned her medical degree from the University of Wisconsin in Madison. She completed her internship and residency at the University of Utah. She served a fellowship at the University of Utah and Huntsman Cancer Institute. Dr. Konopa is a member of the American Society of Clinical Oncology and the Christian Medical and Dental Society. She is certified in internal medicine and medical oncology.

Finn Bo Petersen, M.D.

Dr. Finn Bo Petersen earned his medical degree from the University of Copenhagen Medical School in Copenhagen, Denmark. He was a resident in Internal Medicine in Copenhagen and completed a fellowship in Medical Oncology at the University of Washington and The Fred Hutchinson Cancer Research Center in Seattle, WA. Dr. Petersen served as the clinical and program director of the Utah Blood and Marrow Transplant Program at the University of Utah School of Medicine from 1992-2001 and 2001-2006 respectively. Dr. Petersen also served as medical and program director for IHC/LDS Hospital Blood and Marrow Transplant Services from 1997. He is a member of the American Medical Association, International Society for Experimental Hematology, American Society of Hematology, Southwest Oncology Group, the Association of Blood and Marrow Transplant and the American Society of Clinical Oncology. Dr. Petersen is a prolific writer and renowned expert in his field. He has been awarded the title of "Adjunct Professor in Hematopoietic Stem Cell Transplantation" in the Medical Faculty, Department of Hematology, by the University of Aarhus, Denmark.