Family Medicine

Gayle Johnson, ARNP joined Mahaska Health in November 2019. For more than 30 years, Gayle has been a caring nurse in Grinnell, Iowa. During her tenure there, she has worked in the Medical Surgical Unit as a charge nurse and served as clinical advisor for the medical surgical unit, intensive care unit, emergency department, and…

Tonya Johannes, DNP, ARNP-BC

Tonya Johannes, DNP, ARNP-BC has been a nurse practitioner at Mahaska Health since 2016 and has served the healthcare field since 2003 in nursing home, hospital and clinical settings. Johannes grew up in Albia, IA and chose the medical field after spending an entire summer in a hospital helping to care for her grandmother. She…

Hospitalist, Inpatient Medicine

Family Nurse Practitioner Robyn Griffiths is a full-time Hospitalist at Mahaska Health. She has a passion for nursing and pursued an advanced degree to be more involved in her patient’s healthcare decisions. Caring for people is an honor and a privilege for Robyn and she believes her Hospitalist role allows her to provide more personalized…

Family Medicine & Walk-In Clinic

Jana Galbreath, DNP-FNPc, ARNP serves both the Walk-In and Primary Care teams. Jana began her career as a nurse in 2004, and since then earned her Bachelor of Science in Nursing from the University of Iowa College of Nursing in 2015, and most recently graduated with her Doctorate of Nursing Practice – Family Nurse Practitioner…

Renee Edgar, RN

Cardiopulmonary Services

Renee Edgar, RN, works in Cardiopulmonary Services at Mahaska Health. Renee has a passion for teaching her patients about healthy living. She finds fulfillment in building relationships with her patients. Her goal is to help patients find and understand what works for them and their lifestyle. When Renee is not at work, she enjoys sewing, canning, and exercising. Renee also enjoys walking around…