Cornelius Boerkoel, MD, PhD

Executive Director, Sanford Imagenetics Research Center on Genomic & Molecular Medicine and Executive Clinical Director, Sanford Genetics Laboratories

Dr. Boerkoel received his MD and PhD from Case Western Reserve University. He trained in Pediatrics at the University of Washington and in Clinical Genetics at the University of Toronto. He completed postdoctoral training at Baylor College of Medicine, where he also served as clinical and research faculty.

In 2006, he joined the faculty of the University of British Columbia and co-founded the Rare Disease Foundation. He was appointed director of the research laboratory of the Undiagnosed Diseases Program at NIH in 2010 and developed a scalable model for translational research and precision medicine.

In 2016, Dr. Boerkoel joined the Sanford Imagenetics program and currently serves as the Executive Director for Sanford Imagenetics Research Center on Genomic & Molecular Medicine and as Executive Clinical Director of the Sanford Genetics Laboratories. He is also a professor in Pediatrics and Internal Medicine at the University of South Dakota Sanford School of Medicine.

Kari Casas, MD

Medical Genetics and Metabolism

Dr. Casas practices at the Sanford Broadway Clinic in Fargo, ND. She graduated from the University of North Dakota - School of Medicine & Health in Grand Forks, ND. Dr. Casas completed a residency in pediatrics at the University of Oklahoma in Oklahoma City, OK and a residency in genetics at the University of California in Los Angeles, CA. Dr. Casas is board certified by the American Board of Medical Genetics and the American Board of Pediatrics.

Dr. Casas has a love of science and genetics and a desire to help people. Dr. Casas listens to patient's concerns, informs them regarding their genetic condition and helps them make decisions to improve their health.

Laura Davis-Keppen, MD

Pediatric Genetics/Endocrinology

Dr. Davis-Keppen practices at the Sanford Children's Specialty Clinic in Sioux Falls, SD. She graduated from medical school at the University of South Dakota School of Medicine in Vermillion, SD. Dr. Davis-Keppen completed a residency at the University of Oklahoma Health Sciences Center in Oklahoma City, OK and also fellowships in pediatric genetics, endocrinology and metabolism. Dr. Davis-Keppen is board certified in clinical genetics by the American Board of Medical Genetics and in pediatric endocrinology and pediatrics by the American Board of Pediatrics.

Dr. Davis-Keppen is a professor of pediatrics at the Sanford School of Medicine of the University of South Dakota.

Catherine Hajek, MD

Medical Genetics

Cassie Hajek is a Sioux Falls, SD native. She graduated from the University of Michigan with Bachelor's and Master's degrees in industrial and operations engineering. After graduating from the University of South Dakota Sanford School of Medicine and completing Internal Medicine residency at Montefiore Medical Center in Bronx NY, she practiced outpatient internal medicine for 3 years.

In 2014, she took a leave from her practice at Sanford Adult Medicine in Sioux Falls, SD to pursue a medical genetics fellowship at the UCLA Intercampus Medical Genetics Program. She now has a practice which includes patients with adult genetic conditions including cancer predisposition, connective tissue disease, cardiogenetics and neurogenetics.

Dr. Hajek provides her patients with a comprehensive evaluation to determine whether they are affected with a genetic condition. She places a heavy emphasis on preventative health to identify and prevent health concerns that may be related to their genetic condition.

​H. Eugene Hoyme, MD

Chief, Genetics and Genomic Medicine, Sanford Health; Emeritus Professor of Pediatrics, University of South Dakota Sanford School of Medicine, Sioux Falls, SD; Senior Advisor, Center for Applied Genetics and Genomic Medicine; Professor of Pediatrics and Medicine, University of Arizona College of Medicine, Tucson, AZ

Dr. Hoyme serves as a senior executive leader and advisor in genetics and genomic medicine at Sanford Health, the University of South Dakota Sanford School of Medicine and the University of Arizona. He also serves as the Medical Director of the Sanford Children's Genomic Medicine Consortium, a formal collaborative in pediatric precision medicine among seven major children's hospitals.

Previously, he functioned as Chair of the Department of Pediatrics of the Sanford School of Medicine, President of Sanford Research and Chief Academic Officer for Sanford Health. He also has held academic appointments and leadership posts at the Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto, and the University of Vermont College of Medicine, Burlington.

Dr. Hoyme received his BA summa cum laude from Augustana University in Sioux Falls and his MD from the University of Chicago Pritzker School of Medicine. He completed his pediatric residency and clinical genetics and dysmorphology fellowship training at the University of California, San Diego. He is board certified in pediatrics, clinical genetics and clinical cytogenetics. He is the recipient of myriad local, regional, and national awards in research, teaching and mentorship, among which are the WSPR's Joseph W. St. Geme Jr. Education Award (in recognition of outstanding achievement in pediatric education, 2011), the National Organization on Fetal Alcohol Syndrome Excellence Award (2012), and the American Academy of Pediatrics David W. Smith Education and Mentorship Award (2016).

​Pamela McGrann, MD

Medical Genetics

Dr. McGrann practices within the Roger Maris Cancer Center at Sanford - Fargo. She graduated from the University of Minnesota magna cum laude and from the University of Minnesota Medical School in Minneapolis, MN. She also completed an internship and residency in pediatrics at the University of Minnesota. Dr. McGrann completed a fellowship in medical genetics at The Children's Hospital Los Angeles in Los Angeles, CA and is board certified in clinical genetics by the American Board of Medical Genetics.

In 1990 Dr. McGrann joined the Department of Medical Genetics at the Mayo Clinic in Rochester, MN. She saw patients of all ages in the areas of prenatal genetics, dysmorphology, skeletal dysplasias, metabolic genetics, adult neurodegenerative diseases, cardiomyopathies and hereditary cancer syndromes.

Dr. McGrann joined Sanford Health in Fargo in 2009. She currently practices in the Cancer Risk Assessment Clinic and directs the Hereditary Cancer Clinic within the Roger Maris Cancer Center. Dr. McGrann strives to provide an atmosphere in which the patient and his/her family will be supported and will learn about familial cancers. She has more than 25 years of experience in the diagnosis and management of patients who have a personal and family history of cancer.

Angela Myers, MD

Pediatric Genetics

Dr. Myers provides clinical services at the Sanford Children's Specialty Clinic in Sioux Falls, SD. She graduated from medical school at the Colegio Mayor de Nuestra Señora del Rosario in Bogotá, Colombia and completed a residency in Family Medicine at Indiana University School of Medicine in Indianapolis, IN. Dr. Myers then completed a residency in Medical Genetics at Stanford University School of Medicine in Stanford, CA and became board certified in Medical Genetics by the American Board of Medical Genetics and Genomics. In 2016 Dr. Myers completed a one year Medical Biochemical Genetics Fellowship at Stanford University School of Medicine and returned to Sanford Children's Specialty Clinic with additional expertise in inborn errors of metabolism, mitochondrial disease and neurogenetics.

Dr. Myers' area of expertise includes the comprehensive clinical genetic evaluations and lifelong care of children and adults with inherited and sporadic genetic disorders, focusing on dysmorphic (abnormal) features or birth defects, issues related to growth and neurodevelopment, and family history of genetic conditions. She provides consultation and care to mothers with genetic conditions antedating pregnancy, carrying fetuses with known birth defects, and prior and recurrent pregnancy loss. Dr. Myers also provides specialized care for children and adult patients with inborn errors of metabolism, mitochondrial disorders and neuromuscular and neurometabolic disorders. She is active in patient care, clinical research and education of medical students and pediatric residents.

Dr. Myers' goal is to provide patients with a comprehensive evaluation, risk assessment, genetic counseling and personalized genetic testing to help find answers for those undergoing a challenging and typically stressful diagnostic odyssey. She strives to enable families and physicians to better understand what may often be complicated genetic conditions and facilitate access to state of the art testing. Ultimately, Dr. Myers strives to provide clinical recommendations for treatment and preventative health using a multidisciplinary approach to develop a consensus plan based on the family's needs.