Behavioral Health

To schedule an appointment with one of our Behavioral Health providers, call the Keokuk County Medical Clinic at (641) 622-1170.

Mariah Johnson, DNP, ARNP, PMHNP-BC,is accepting new patients for mental health services all across the lifespan. She completed her undergraduate education in nursing at St. Ambrose University in Davenport. From there she worked as a Surgical and Neuroscience Intensive Care Unit nurse at UIHC for six years. She graduated from the Doctor of Nursing Program at the University of Iowa in 2022.

Mariah will be a familiar face to many as she has done 2 clinical rotations at the Sigourney Medical Clinic.

Mariah grew up on a farm in Washington, IA. She loves spending time with her husband, son and dog. She also enjoys getting together with family, reading a good book, and making cookies!

She looks forward to working with all patients to achieve their optimal mental health status and goals!

Stefanie Yearian, MSN, ARNP-BC, provides behavioral health services for the Keokuk County Hospital & Clinics. Her approach is grounded by a holistic nursing theory that health is a dynamic interaction of the mind, body and soul. She genuinely respects her clients and feels it is a privilege to accompany them on their path to peace and well-being.

Her undergraduate studies include a Bachelor of Arts in Psychology, Bachelor of Science in Chemistry with an emphasis in Genetics from the University of Northern Iowa in 1996 and nursing education from both Indian Hills and Kirkwood community colleges in 1998. Her graduate studies were completed at the University of Iowa for Advanced Registered Nurse Practitioner in 2004. She is board certificated in Child and Adolescent, Family and Adult Psychiatric/Mental Health nursing.

Stefanie’s 20+ years of work experiences are very diverse and include working as a rape advocate, nurse, and advance practice psychiatric emergency nurse. She has worked with adolescents, adults and veterans. She has also spent time in nursing homes.

Stefanie was raised on a farm outside of Williamsburg, Iowa. She married her high school sweetheart after college and moved to California. They returned to Iowa to start a family. Stefanie understands that balancing home and work can be a challenge but is important. She stays active, reading a good book, trying a new recipe, visiting new restaurants and traveling which all contribute to good times and memories.

Marcy DeWitt, LISW, has been a therapist and counselor for twenty years and has worked in many areas in her career. She has worked as a liaison for hospitals and clinics, worked with teens in the school setting and helped develop a restorative justice program for juvenile court services.

Marcy works with young teens through end of life clients, helping them face challenges and stressors in their lives. She believes each individual has the answers they seek within themselves but need assistance opening up to those possibilities. She uses CBT, EMDR, solution focused, and strength-based strategies to accomplish goals that the client has for their relationships, depression, anxiety, trauma, and grief.

Amy Molyneux, LISW, is a licensed independent social worker with over 13 years of experience working with children and families in the school and clinical settings. Amy received a Bachelor of Arts degree in Psychology with minors in Sociology and Human Relations from the University of Iowa and a Master of Social Work degree from the University of Iowa. She will provide a range of counseling services including: small group, individual counseling, consultation, and behavior intervention services.

Amy provides an individualized, strengths-based, collaborative, treatment approach. Treatment modalities and interests include: Cognitive-Behavioral Therapy, Mindfulness Based Approach, as well as Behavioral Management Strategies, Solution-Focused Brief Therapy, and Motivational Interviewing.

Amy has been married to her husband, Jared for 18 years. They have 3 sons who are involved in several activities in and out of school. Amy enjoys spending time with her family and being physically active. Her hobbies include attending her boys activities, running, swimming, biking, and kayaking. Amy has worked with KCHC for support to hold Sigourney’s Super Sprint Triathlon over the past 10 years.