Pediatrics, Family Practice


Orthopaedic Specialist, Fellowship-trained

Michael Shaw, PA-C, MPAS is a Nationally Certified, Masters and Fellowship-trained Physician Assistant. Shaw completed his Fellowship training in Orthopaedic Surgery at Wright Patterson Medical Center at Wright Patterson Air Force Base in Ohio. Mike Shaw provides comprehensive general orthopedic care and assists in surgical cases to include procedures for complex orthopaedic trauma, total joint…

Birthing Center Director

Jill Mitrisin, RN

Allergy, Immunology & Pulmonology

© MW Images, 2020 Copyright

Lynae Boender, RN

Allergy, Immunology & Pulmonology

© MW Images, 2020 Copyright

Walk-In Clinic

Heidi Powers, ARNP, joined the Mahaska Health Walk-In Clinic Care Team in February 2021. She is happy to be back home in this community, as her hometown is Barnes City, Iowa. Heidi earned her Master of Science in Nursing (Family Practice) through Clarkson College in Omaha, Nebraska, and is certified through the American Academy of…

Kathrine Bosch, CRNA

Surgical Services

Kathrine is originally from Bismark, North Dakota. Katherine joked that despite coming from a family of hairdressers, she has always wanted to be a nurse. She graduated with her Bachelor of Science in Nursing degree from University of Mary in Bismark in 2011. After shadowing with a friend’s mother who was a CRNA, she decided…

  Julie Lautenbach, PA-C, MPH serves the Mahaska Health Walk-In Clinic care team. After graduating from the Physician Assistant Program at Nova Southeastern University in Ft. Lauderdale, Florida in 2003, Julie began her career at Mahaska Health as a physician assistant in the orthopaedics department. Since then, she has served surrounding healthcare facilities in the…

Surgical Services

  Matthew grew up in Lake Mills, Iowa and earned his Bachelor of Science in Nursing at South Dakota State University in 2006. He began his nursing career at Mayo Clinic in Rochester, Minnesota, working as a Resource Nurse and later a nurse in the Intensive Care Unit. He decided to further his education, becoming…

Michael Johnston, PA-C

With over 30 years of orthopaedic experience, Michael Johnston enjoys coming into work each day knowing that he is improving the lives of his patients and getting them back to what they love to do.