Concordia Mind Health is a private practice psychiatric clinic located in Sioux Falls, SD. Our office hours are Monday-Friday: 8 a.m. to 5 p.m.

We offer medication management for:

  • Depression
  • Anxiety
  • Postpartum depression
  • Postpartum anxiety
  • Mood disorders
  • Personality disorders
  • Psychosis
  • OCD
  • Substance-use
  • ADHD
  • Sleep issues
  • Trauma, and more
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Our Providers

James Chiu, MD

Dr. Chiu went to Creighton University for his undergraduate then attended medical school at the University of South Dakota. He completed his residency program through USD Psychiatry and has a Diplomate of the American Board of Psychiatry and Neurology. He is licensed in South Dakota and Iowa. His experience in psychiatry includes: inpatient, outpatient, consultation, ACT, First Episode Psychosis, Health Home, Drug Court, DUI Court, Mental Health Court, and Mental Health Assisted Living facilities. He is now accepting new patients at Concordia Mind Health.

Afton Artz, CNP

Afton is a Certified Nurse Practitioner specializing in psychiatry. She graduated with a bachelor’s degree in nursing at the University of South Dakota. Following she pursued her education and earned a master’s degree in nursing from Walden University. Over the years she has gained experience working with the adult population in community mental health through a variety of programs including assertive community treatment, first episode psychosis, health home and outpatient. Afton does some outreach psych services for Concordia Mind Health. Afton is licensed in South Dakota and Minnesota and is now accepting new patients 18 years and older at Concordia Mind Health. 

Revel Degen, CNP

Revel graduated from South Dakota State University with a bachelor’s in nursing. Her first job after graduation was a Registered Nurse in the NICU. Following this she spent some time in family practice after which she decided to take a position as a registered nurse with an outpatient community mental health center. This is where her love and passion for psychiatry was founded. She worked under great providers who encouraged her to go back to school to further her education. Revel graduated with a Master’s in Nursing from Saint Louis University specializing in psychiatry. As a Certified Nurse Practitioner, she specializes in clients from age five (5) and up for their mental health concerns and needs. She is currently accepting new patients at Concordia Mind Health.

Lauri Wolter, CNP

Lauri is a board certified Psychiatric Mental Health Nurse Practitioner. She has a Master’s Degree in Nursing, focusing on mental health across the lifespan. She is licensed as a Psychiatric Mental Health Nurse Practitioner in both Iowa and South Dakota.  Lauri has worked in psychiatric nursing for the past 20 years and worked in both inpatient and outpatient mental health settings. She has been a certified Non-Violent Crisis Intervention trainer and strives to ensure safety for staff and patients. Lauri does outreach psych services for Concordia Mind Health.

Tammy Topp, CNP

Tammy has been in healthcare since 2001, working from certified nurse assistant to nurse practitioner. From 2004-2016 she worked as a registered nurse. As a RN worked in many settings, primarily family practice. In March of 2016, she graduated with a Family Nurse Practitioner degree. Her first job was in correctional medicine with the South Dakota Department of Health. She left correctional medicine in 2019 to pursue more schooling and have worked in urgent care and mental health settings since that time. She graduated from the Psychiatric Mental Health Nurse Practitioner program at Briar Cliff University in 2021. Tammy does out-reach psych services for Concordia Mind Health.

Kelsie Lemmon, CNP

Kelsie Lemmon graduated with a bachelor's degree in nursing through Presentation College in Aberdeen, South Dakota. After working several years as a nurse she furthered her education and earned her master’s degree in nursing through Purdue University Global. She is certified as a nurse practitioner specializing in family medicine. Prior to enrolling in her master’s program she worked several years on an inpatient psychiatric unit, as well as a primary care clinic that served all populations including those with mental health needs. She is excited to make her way back into mental health. She is currently accepting new patients at Concordia Mind Health. 

Riley Soukkeo, LPN

Riley is our Licensed Practical Nurse at Concordia Mind Health. She has worked in psychiatry for 6 years. She gained experience at the Human Service Center, and Southeastern Behavioral Health. Riley brings dedication, passion and positivity to Concordia Mind Health. She is an advocate for the patients. She helps out with many nursing roles as well as Spravato and TMS. Riley is a great asset to the Concordia Mind Health Team.

Darein Martinson

Darein is our office assistant at Concordia Mind Health. Darein comes from local roots not far away down in Sioux City, IA and made her way to Sioux Falls. With over six years of customer service and clinical experience Darein brings a fun, professional and client focused attitude. Concordia Mind Health utilizes Darein in a variety of ways including but not limited to receptionist, client interactions, scheduling, TMS treatments, and correspondence. 

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