Dwight Remington, DNP, FNP-C, is a board-certified family nurse practitioner and a member of our Pulmonary/Critical Care team. A Minot native, he received both his bachelor’s and doctorate degrees in Nursing from the University of Mary in Bismarck. Prior to becoming a nurse practitioner, Dwight worked as an RN for Trinity Health starting February, 2000, and practiced in various critical care departments, including the adult and newborn intensive care units, the cardiac catheterization lab, and as a flight nurse with NorthStar Criticair. Dwight provides treatment and support to patients in all stages of pulmonary disease and cares for critically ill patients in the ICU. He is a member of the American Association of Nurse Practitioners.
Trinity Health Medical Office Building
Andrea Sebelius, AGPCNP-BC
A nurse practitioner specializing in Adult Geriatric Primary Care, Andrea works with physicians and other members of the orthopedic team to manage the care of patients affected by a broad range of musculoskeletal conditions, including sports related injuries. Originally from Leeds, ND, she earned her Bachelor of Science in Nursing from the University of Mary, Bismarck, and completed her Master of Science in Nursing as an Adult Geriatric Primary Care Nurse Practitioner through the University of Cincinnati. A member of the American Association of Nurse Practitioners, Andrea enjoys all outdoor sports as well as basketball, which she played both in high school and college.
Cody Pehrson, MD
Dr. Pehrson specializes in orthopedic surgery with a focus on complex trauma and hip reconstruction. His expertise includes anterior hip replacement, an innovative approach that can significantly reduce pain and downtime. He also does total shoulder replacement. Dr. Pehrson is fellowship trained in orthopedic trauma, with specialized expertise in pelvic and acetabular fracture care. He’s dedicated to helping patients regain mobility and return to the activities they enjoy. A magna-cum-laude graduate of Utah State University, he earned his medical doctorate from the Medical College of Wisconsin and received residency training in orthopedic surgery at UCSF Fresno, where he was voted Resident of the Year for the 2014-2015 academic year. Following residency, he completed his Orthopaedic Trauma Fellowship with Sonoran Orthopaedic Trauma Surgeons in Phoenix, AZ, where he provided orthopedic trauma care at the four Level I trauma centers in the Phoenix area and trained extensively in reconstructive and revision surgery of the hip, with an emphasis on utilizing the anterior approach. Dr. Pehrson and his wife Jocelyn have five children. They enjoy spending time outside, traveling, and trying new things. Dr. Pehrson is a member of the American Academy of Orthopaedic Surgeons and the Orthopaedic Trauma Association.
Tyson Williams, DPM
Dr. Williams is a podiatrist who offers conservative and surgical treatments for foot and ankle disorders. A graduate of the Dr. William M. Scholl College of Podiatric Medicine in Chicago, he completed three years of residency training in sports medicine, diabetic foot and general podiatry. He spent a full two years concentrating on reconstructive foot and ankle surgery. He is a member of the American College of Foot and Ankle Surgeons. Dr. Williams is a Minot native.
Amanda Weidler, FNP-C
Amanda Weidler, FNP-C, serves in Trinity’s Cardiology Department as a nurse practitioner. She works closely with cardiologists and other clinical staff to provide comprehensive cardiovascular care, including health assessments, care planning, writing prescriptions, and counseling patients on lifestyle changes that can reduce the risk of cardiovascular illness. Originally from Killdeer, Amanda earned her Bachelor of Science degree in Nursing from the University of North Dakota, Grand Forks. She practiced in Bismarck and at Trinity Hospital in Minot, serving patients in the ortho-neuro and post-anesthesia care units. She returned to UND to complete her Master of Science/Family Nurse Practitioner degree. A member of the American Association of Nurse Practitioners and the North Dakota Nurse Practitioners Association, Amanda resides in Velva with her husband, Matt, and their two children.
Ashley Wallner, FNP-C
A member of our Urology team, Ashley Wallner, FNP-C, is a board-certified nurse practitioner, dedicated to caring for patients with issues related to the urinary tract, such as infections, cancers, and kidney stones. She received her Bachelor of Science in Nursing from Minot State University in 2007 and earned a Master of Science in Family Nurse Practice from the University of Mary, Bismarck, in 2013. Ashley joined Trinity Health in 2003 as a certified nursing assistant. After earning her degree, she worked as a registered nurse in critical care areas as well as surgical care. She was a member of the Neurosurgery team for nine years prior to joining the Urology staff. A Minot native, she enjoys travel and family activities with her husband and their three children.
Jeffrey Verhey, MD
Dr. Verhey is board certified in three specialties. He is board certified in Pulmonary Medicine, Critical Care Medicine and Internal Medicine. His training gives him expertise in treating patients with respiratory and lung conditions. He also is trained to care for those critically ill patients in the Intensive Care Unit. Dr. Verhey has been with Trinity Health since 1996, and serves Trinity in many capacities. He is the Medical Director for Home Health/Hospice, ICU, Respiratory Therapy and Trinity Health First Response Air. He has served as Trinity’s Chief of Staff from 2002-2008. He is a Clinical Professor of Medicine for UND School of Medicine and has been honored as the Teacher of the Year at the Northwest Campus several times including three years in a row from 2012-2015. Dr. Verhey received his medical degree from the University of South Dakota-Vermillion, and did his Internal Medicine Residency and Pulmonary Critical Care Fellowship at the University of Missouri-Columbia. Dr. Verhey is a native of Madison, South Dakota. He and his wife, Janelle, have four children.
Samir Turk, MD
Dr. Turk is board certified in general cardiology and interventional cardiology. A graduate of the Royal College of Physicians and Surgeons, Dublin, Ireland, he completed his residency in Internal Medicine at Worcester City Hospital and University of Massachusetts Medical Center, Worcester, MA. He completed fellowships in peripheral vascular medicine and cardiology at Cleveland Clinic Foundation and MetroHealth Medical Center in Ohio. He was an interventional cardiologist at Health Center – Medical Arts from 1994-1999. He was associated with Ohio Heart Care, Inc., Canton, Ohio, before returning to Minot.
Nasser Saffarian, MD
Dr. Saffarian is a graduate of the American University of the Carribean, British West Indies. He completed his Internal Medicine residency at Bronx-Lebanon Hospital where he also fulfilled his Nephrology fellowship. He completed an additional fellowship in Transplant Nephrology at St. Johns Hospital and Medical Center in Detroit.
Carol Schaffner, MD
Carol M. Schaffner, MD, is dedicated to providing individualized care that meets a woman’s changing needs throughout her lifetime. Originally from South Dakota, she earned her medical degree from the University of South Dakota School of Medicine in Vermillion. Her internship and Ob/Gyn residency were completed at Tulane University Hospital, New Orleans, LA. She’s committed to comprehensive healthcare for women, with a special interest in infertility and pregnancy.