Diana Arrah, PMHNP-BC, is a psychiatric mental health nurse practitioner and a member of our Behavioral Health team. Diana’s specialty is providing mental health care to patients in multiple settings including the inpatient psychiatric unit, emergency department and medical floors. She works with physicians and other healthcare professionals to help patients deal with a wide range of psychiatric conditions by assessing their mental health status, providing stabilizing medications and offering counseling or psychotherapy. Diana earned her Bachelor of Science in Nursing from Walsh University, Byers School of Nursing in Ohio and completed her Masters in Psychiatric Mental Health at Maryville University, St. Louis, MO. Prior to earning her master’s, she practiced seven years as an RN in healthcare settings in North Dakota and Ohio.
Trinity Health St. Joseph's Hospital
Maggie Hill, LAC
Jack Long, MD
Luis Coco III, LAC
Stacy Flaten, FNP-BC
Stacy Flaten, FNP-BC, is a board-certified nurse practitioner and a member of our Behavioral Health team. She works with doctors, counselors, and other healthcare professionals to provide inpatient care to people with mental health and addiction issues. With close to 20 years of nursing experience, Stacy has cared for patients across the lifespan, practicing primarily in medical-surgical, NICU, and orthopedic settings in Fargo, Minot, and Bismarck, often in leadership positions. She earned her Bachelor of Science in Nursing from North Dakota State University in 2003 and completed a Master of Science in Nurse Education from the University of Mary, Bismarck, in 2015. She served on the nursing faculty of Minot State University for four years from 2014 to 2018. Later, she developed an interest in behavioral health nursing. She continued to advance her education, completing post-master’s training as a family nurse practitioner through Purdue Global University. Stacy is a member of the American Nurses Association.
Lauren Wake, DO
Trinity Health welcomes Lauren Wake, DO, to our inpatient psychiatry team. Dr. Wake is specially trained to help adults of all ages manage a broad range of behavioral health problems, including serious mental health conditions. Working with each patient, she uses medications, psychotherapy, and other interventions to promote recovery and enhance patients’ physical and emotional well-being.
Born and raised in Michigan, Dr. Wake earned her doctorate at Michigan State University College of Osteopathic Medicine. She completed a four-year residency in Adult Psychiatry at Detroit Medical Center/Wayne State University, where she acquired extensive experience treating a variety of mental health disorders. During the final year of her residency, she completed a year-long fellowship in psychoanalytic psychotherapy at Michigan Psychoanalytic Institute in Farmington Hills.
Throughout her medical training, Dr. Wake has been recognized for leadership, earning the Graduate Medical Education Leadership Award and Resident Teaching Awards. She was appointed to serve as junior chief resident and chief resident. She graduated with the Outstanding Graduate Award and Professionalism Award. A member of the American Psychiatric Association, Dr. Wake and her husband – a ship captain – enjoy sailing, traveling, and spending time with their dog.
Elizabeth Ohiku, MD
Elizabeth Ohiku, MD, MS, BSN is board certified in General and Child-Adolescent Psychiatry. She is uniquely qualified to address the full range of emotional and behavioral health issues affecting children and adolescents, utilizing the latest therapies and interventions. Dr. Ohiku completed her medical degree and General Psychiatry residency at the University of Illinois College of Medicine at Chicago. She completed her fellowship in Child and Adolescent Psychiatry at Tulane University School of Medicine, New Orleans. Dr. Ohiku has practiced psychiatry with special populations including, forensic adults and juveniles, school based mental health, veterans, the intellectually disabled and severely mentally ill individuals. At one point, she oversaw the establishment of psychiatric services at Richmond State Supported Living Center in Texas, a residential facility for adults with intellectual and developmental disabilities. Dr. Ohiku is a Fellow of the American Psychiatric Association.
Amy Thull, LAC
A member of Trinity Addiction Services, Amy Thull, LAC, is a licensed addiction counselor who works with doctors, counselors, and other professionals to provide inpatient and outpatient care for patients who suffer from the disease of addiction. The Granville native received her Bachelor of Science Degree in Addiction Studies from Minot State University in 2014.
Jason Andersen, LAC
A member of Trinity’s Behavioral Health team, Jason Andersen, LAC, is a licensed addiction counselor and program supervisor for Trinity Addiction Services. A Montana native, he received his Bachelor of Arts in Addiction Studies from Minot State University in 2000. He was associated with North Central Human Service Center in Minot for 15 years, where he served as the primary adolescent addiction counselor for the agency. While working with the adolescent program, he was active in the Ward County Juvenile Drug Court Program. Jason came to Trinity Hospital in May 2015 to assume the role as program supervisor. He lives in the Minot area with his family.
Heidi Stromswold, LAC
A licensed addiction counselor, Heidi Stromswold, LAC, works with patients to help them recover from their disease of addiction. Originally from Rapid City, SD, Heidi moved to Minot in 2007, where she received her Bachelor of Science degree in Addiction Studies from Minot State University in 2010, graduating summa cum laude. She joined Trinity Heath in 2012 as a licensed addiction counselor within its Addiction Services unit. Heidi lives in Minot with her family.