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Program Start Date:
August 24, 2026Applications Open:
Rolling, beginning November 10, 2025Application Deadline:
May 1, 2026 at 11:59 p.m. ESTFinal Offer Date:
May 22, 2026Contacting SH-PPR:
Questions regarding our residency program or the application and interview processes may be directed to Co-Directors of Training, Dr. Elizabeth Evenson and Dr. Rebecca Preussler or Program Administrator, Shelly McCann
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Residency Faculty
Click on name to view full bio.
Training Administration
Elizabeth Evenson
Psy.D., LP
elizabeth.evenson@sanfordhealth.org
Dr. Elizabeth Evenson received her doctorate in clinical psychology from Capella University. She completed an APPIC internship at the University of Minnesota – Duluth. She began her postdoctoral work at a university counseling center and completed it in a rural mental health community center. Prior to obtaining her doctorate, Dr. Evenson completed a terminal master’s degree and worked as a licensed counselor in North Dakota. Dr. Evenson has assisted patients with a variety of mental health and substance use disorders in Minnesota. She has provided clinical and administrative supervision to those seeking their master’s or doctoral degrees and is a board approved supervisor with the Minnesota Board of Behavioral Health and Therapy. Dr. Evenson enjoys presenting on mental health and substance use topics. Outside of work, she enjoys spending time with her husband and their dogs, with family and friends, and reading.
Rebecca Preussler
Psy.D., LP
rebecca.preussler@sanfordhealth.org
Dr. Rebecca Preussler received her doctorate in clinical psychology from Wheaton College. She completed an APPIC internship at the Chicago Area Christian Training Consortium. She completed her postdoctoral work at Heartland Counseling/The Center for Rural Psychology. Prior to obtaining her doctorate, Dr. Preussler completed a terminal master’s degree and worked as a licensed counselor in Illinois while starting on her doctorate program. Dr. Preussler has assisted children and adolescents with a variety of mental health disorders in North Dakota and Minnesota. She has provided clinical supervision to those seeking doctoral degrees. Dr. Preussler enjoys working with children and their families in the clinic and medical setting. She currently works at Sanford’s Child and Adolescent Behavioral Health Clinic (CABHC) in Fargo, ND. Outside of work, she enjoys spending time with her husband, two children, their dog, and with family and friends. She enjoys most card and board games and reading.
Shelly McCann
MHA
shelly.mccann@sanfordhealth.org
Shelly McCann is a Graduate Medical Education Program Administrator for the Post-Doctoral Residency and the Pre-Doctoral Internship Programs at Sanford Health. Previously she has worked in student services coordinating clinical experiences at Sanford Health. She holds a bachelor’s degree in health service administration well as a master’s degree in healthcare administration (MHA) both from Minnesota State University Moorhead and resides in Fargo, ND.
Training Faculty
Trent Barstad
Ph.D., LP
trent.barstad@sanfordhealth.org
Dr. Trent Barstad is a psychologist with a focus on rural psychology and a generalist with some specific areas of interest. He holds degrees in education and psychology. He received my doctoral degree from Ball State University in Muncie, IN. His background includes working in a variety of clinical settings: outpatient, inpatient, residential treatment, corrections, private practice, and clinic settings. Dr. Barstad has taught at a variety of educational levels from middle school to university. He has worked with a wide range of clients and diagnoses over the years. Dr. Barstad has been working at Sanford Behavioral Health in Thief River Falls, MN since 2009 and has been working as a therapist since 1995. He is currently the clinical chair of Sanford Behavioral Health Center Thief River Falls (SBHC-TRF).
Christi Bostwick
Ph.D., LP
Christi.Bostwick@sanfordhealth.org
Christi Bostwick received her doctorate degree in Developmental and Child Psychology from the University of Kanas. She completed an APA approved Clinical Child Psychology internship and a Clinical Child Psychology Fellowship at The Children’s Mercy Hospital in Kansas City, Missouri. Dr. Bostwick has practiced in pediatric outpatient clinic settings, developed her own private practice, and is currently a Developmental and Behavioral Psychologist at Sanford Children’s Hospital and Specialty Clinics. She has taught undergraduate Psychology classes at The University of Kansas, in Lawrence Kansas, Rockhurst University in Kansas City, Missouri, and at St. Olaf College in Northfield, Minnesota. Dr. Bostwick specializes in working with children, adolescents, young adults and their families in need of inpatient and outpatient complex care. Outside of work, she enjoys traveling with her adult children, working on her 1936 fixer-upper, walking her miniature Cocker Spaniel, Copley, and entertaining her family and friends.
Kristi Cedars
Ph.D., LP
Kristilynn.Cedars@SanfordHealth.org
Dr. Kristi Cedars is a Pediatric Psychologist specializing in pediatric health psychology in the acute medical setting. She received her Ph.D. from Bowling Green State University after completing her internship at Geisinger Medical Center in Pennsylvania. She completed her post-doctoral fellowship in Pediatric Psychology at Geisinger Medical Center. Prior to coming to Sanford in 2020, Dr. Cedars work at Children’s Hospital of Wisconsin with the kidney transplant team, diabetes team, and on the inpatient consult service. In addition to her clinic work, Dr. Cedars also facilitates staff support and processing sessions after difficult clinical events. In her free time, she enjoys reading, going to the lake, playing games, going for walks and spending time with her husband and children.
Karen Golombecki
Psy.D., LP
Karen.Golombecki@sanfordhealth.org
Karen Golombecki is a Licensed Psychologist who specializes in Rehabilitation and Health Psychology, Psychological Testing and treatment for individuals with Intellectual Disabilities. She has significant experience in remote/virtual care (therapy and testing) as well as to those is rural areas of the country. She provides both individual and group therapy for patients who are dealing with: chronic medical conditions, chronic pain, complicating medical issues, medical stress/trauma, weight management and health behavior change. She has developing competencies in managing Functional Neurological Disorders/Functional Cognitive Disorders and supporting those who are Deaf/Hard of Hearing (while developing skills to become fluent in American Sign Language to be able to provide therapy to individuals in that language). Therapies Dr. Golombecki incorporates in her work include: Cognitive-Behavior Therapy (CBT), Dialectical-Behavior Therapy (DBT), Acceptance and Commitment Therapy (ACT), Cognitive Processing Therapy (CPT) and Cognitive-Behavior Therapy for Insomnia (CBT-I). She has a Doctorate of Psychology from the University of St. Thomas (Minneapolis, MN). She also has a Bachelor’s Degree in Special Education and Master’s Degree in Rehabilitation Counseling and Community Psychology. Outside of work, Dr. Golombecki enjoys riding motorcycle, refereeing roller derby (known as Dr. Khaotica or “Dr. K” in that sport), camping and practicing American Sign Language.
Sarah Weinzierl
Psy.D., LP, LMFT
sarah.weinzierl@SanfordHealth.org
Sarah Weinzierl received her Doctor of Psychology degree from the Minnesota School of Professional Psychology/Argosy University in 2009. She completed an APPIC internship at Grand Prairie Services in Harvey, IL. Prior to obtaining her doctorate, Dr. Weinzierl completed a terminal Master’s degree in Community Counseling with an emphasis on marriage and family counseling from Minnesota State University, Mankato. She is dually licensed in the State of Minnesota as a psychologist and marriage and family therapist. Prior to joining Sanford in 2017, she worked at a Rule 29 group practice in St. Peter, MN; Upper Mississippi Mental Health Center, a community mental health center in Bemidji, MN; and White Earth Nation in Bemidji, MN. Early in her career at these agencies, Dr. Weinzierl has worked with children, but currently sees primarily adults and has a strong geriatric caseload. In addition to outpatient mental health counseling, Dr. Weinzierl conducts psychological testing for the purposes of ADHD evaluation, diagnostic clarification, and persons in consideration for bariatric surgery. With a passion for academics, Dr. Weinzierl has also been a board approved supervisor for the Boards of Behavioral Health and Psychology since 2014 and 2013 respectively. Therapies Dr. Weinzierl incorporates in her work include Eye Movement Desensitization Reprocessing (EMDR), Cognitive-Behavior Therapy (CBT), and Dialectical-Behavior Therapy (DBT). In her free time, she enjoys traveling with her husband and two teenaged children, trying/cooking new recipes, reading, and spending time with her large extended family.
Lisa J. Keller Salvaggio
Psy.D., LP
Lisa.KellerSalvaggio@sanfordhealth.org
Dr. Lisa J. Keller Salvaggio is a clinical psychologist at Sanford Health, where she provides psychological services in both inpatient and outpatient settings. Her clinical work includes psychological assessment, psychological testing, and psychotherapy with adolescents, adults, and older adults presenting with complex psychological, medical, and trauma-related concerns. Bringing a health psychology, and trauma-informed perspective, and grounded in over two decades of critical care experience as a respiratory therapist, Dr. Keller Salvaggio integrates psychological and medical considerations to support whole-person care within an integrated healthcare environment. Her approach emphasizes the interaction between physical health, psychological functioning, and the impact of medical illness and hospitalization on emotional well-being. Dr. Keller Salvaggio has experience supervising clinicians across disciplines and levels of training. At Sanford Health, she supervises doctoral-level psychology trainees and practicum students, providing guidance in psychological testing, diagnostic formulation, treatment planning, ethical practice, and professional identity development. She also has experience supervising master’s level clinicians in other clinical settings. Dr. Keller Salvaggio holds active licenses as a psychologist in Colorado and Minnesota.
