Experienced Staff
Learn more about the experienced staff at Mercy Family Counseling below. The asterisk mark (*) designates an EAP provider.
Martin Carpenter, MD
Dr. Carpenter is honored to be invited into people’s lives during their hardest moments and is thankful to have learned so much from his patients. Learn more about Dr. Carpenter.
Caroline Moniza, PsyD
Dr. Moniza is a child clinical psychologist specializing in early childhood mental health and development.
Special interests include: assessment and intervention for children ages 2 through adolescents with autism spectrum disorders. Learn more about Dr. Moniza.
Erika Siska, MD
Erika Siska, MD is a graduate of the University of Iowa Carver College of Medicine. She completed residencies in Family Medicine and Psychiatry at The University of Iowa Hospitals and Clinics. Dr. Siska maintains board certification in both Family Medicine and Psychiatry and has obtained fellowship training in Integrative and Holistic Medicine. She see's patients from ages 10 years and up, managing psychiatric issues across the lifespan span and stages of development with special interest in working with teens and older adults. Dr. Siska has specific expertise in managing the challenges of mental illness in the context of medical illness and in working with people interested in integrative, holistic and lifestyle approaches to achieve their optimal mental health. Learn more about Dr. Siska.
Paula Hermsen, PMHNP
Paula is a Psychiatric Mental Health Nurse Practitioner (PMHNP).
Special interests include: treating children/adolescents/young adults. Learn more about Paula.
Nancy Howe, ARNP
Nancy is an Advanced Registered Nurse Practitioner licensed by the State of Iowa.
Special interests include: a full range of primary mental health services, including diagnostic assessment and ongoing medication management.
Kassiani Kelleher, DNP, ARNP, PMHNP-BC
Special interests include: Coming soon!
Barb Roth, ARNP
Barb Roth is an Advanced Registered Nurse Practitioner licensed by the State of Iowa.
Special interests include: treating adult individuals struggling with mental health illness and substance use; providing prompt care; and treatment to manage symptoms and optimize positive outcomes.
Brittany Smelser, PA-C
Brittany holds a Master of Physician Assistant Studies from the University of Nebraska Medical Center College of Allied Health and has a Bachelor of Science from South Dakota State University. She is a fellow member of the American Academy of Physician Assistants, is part of the Iowa Physician Assistant Society and holds an Iowa Board of Physician Assistants license. She specialized in adult psychiatry. Learn more about Brittany.
Kpoti Accoh, LMFT(t)
Special interests include: Coming soon!
Rafah Alsabea, MFT
Special interests include: Coming soon!
Michael Caudill, MSW, LISW*
Mike is a Licensed Independent Social Worker with the State of Iowa.
Special interests include: depression, anxiety, veterans’ issues, substance abuse and marital and family issues.
Kellie Corkery, LISW
Special interests include: Coming soon!
Shannon Fitzpatrick, LMHC(t)
Special interests include: Coming soon!
Cynthia Hemesath, LISW*
Cyndi is a Licensed Independent Social Worker with the State of Iowa.
Special interests include: children, adolescents, adults and families struggling with abuse, ADHD, anxiety, depression, grief, parenting, stress and trauma.
Kelsey Holladay, LISW
Special interests include: Coming soon!
Lindsay Hopp, LISW
Special interests include: Coming soon!
Susan Hoyler, LMHC
Susan is a Licensed Mental Health Counselor with the State of Iowa working with adolescents and adults.
Special interests include: Dialectical Behavior Therapy skills for emotional regulation; anxiety and stress management; and grief and loss issues.
Brenda Keenan, LISW, RPT, CADC*
Brenda is a Licensed Independent Social Worker, Registered Play Therapist and Drug and Alcohol Counselor with the State of Iowa. She works with adults, children and adolescents.
Special interests include: post-trauma work, depression, anxiety, grief/loss, women’s concerns, substance abuse issues and spirituality.
Denise Maas, LMHC
Special interests include: Coming soon!
Brenda Miller, LISW
Brenda is a Licensed Independent Social Worker with the State of Iowa.
Special interests include: child, adolescent, anxiety and trauma
Katie Moon, LMHC, CADC*
Katie is a Licensed Mental Health Counselor and Certified Alcohol and Drug Counselor working with adults, children, and adolescents.
Special interests include: depression, anxiety, couples counseling, addiction, grief, and stress management.
Sierra Portz, LISW
Special interests include: Coming soon!
Madison Roe, LMSW
Special interests include: Coming soon!
David Ross, LISW, ACSW
ave is a Licensed Independent Social Worker with the State of Iowa.
Special interests include: couples and individuals, conflict resolution, anger management and issues of substance abuse.
Sarah Romano, LMHC
Special interests include: Coming soon!
Brooke Stammeyer, LISW
Special interests include: Coming soon!
Shawn Stepp, LMHC, CADC*
Shawn is a Licensed Mental Health Counselor and Certified Alcohol and Drug Counselor.
Special interests include: Hypnotherapy, EMDR (Eye Movement Desensitization and Reprocessing) with adults, addiction issues and stress reduction.
Tamara Taylor-Hillyer, LISW*
Tamara is a Licensed Independent Social Worker who works with adults and adolescents.
Special interests include: couples and family counseling, depression, anxiety, stress management, grief and trauma.
Mary Tharp, LISW*
Mary is a Licensed Independent Social Worker with the State of Iowa, and she works with children and families.
Special interests include: individuals, children, families and adolescents.
