Our Medical Providers

Iowa Methodist Occupational Health & Wellness staff members are experts in occupational medicine, and our focus is on keeping your employees safe and healthy. Please contact our providers directly with questions related to the diagnosis, treatment, or progress of your employees - we're here to serve you!

Jon R. Yankey, MD, Medical Director  |  On staff since 2011

• Practicing Occupational Medicine Since 1997
• Board Certified in Occupational Medicine
• Board Certified in Family Practice
• Certified Independent Medical Examiner
• Certified Medical Review Officer (MRO)
• Graduate of The University of Iowa College of Medicine

Richard S. McCaughey, DO  |  On staff since 1993

• Board Certified in Family Practice
• Certified Medical Review Officer (MRO)
• Residency at Des Moines General Hospital
• Residency at Iowa Methodist Neighborhood Clinics
• Graduate of The University of Osteopathic Medicine & Health Services

Michael J. Knipp, MD, MS  |  On Staff Since 2010

• Board Certified in Occupational Medicine
• American College of Occupational and Environmental Medicine
• Certified Medical Review Officer (MRO)
• Occupational Medicine Residency at The University of Cincinnati
• Graduate of Indiana University School of Medicine

Nicholas O. Bingham, MD, MS  |  On staff since 2012

• Board Certified in Occupational Medicine
• American College of Occupational and Environmental Medicine
• Certified Medical Review Officer (MRO)
• Occupational Medicine Residency at The University of Texas
• Graduate of The University of Illinois College of Medicine

Von L. Miller, MPAS, PA-C  |  On staff since 2003

• Practicing Occupational Medicine Since 2001
• Active Physician Assistant, 71st Civil Support Team - Weapons of Mass Destruction, Iowa National Guard
• Trained in Medical Management of Chemical and Biological Warfare
• Graduate of The University of Nebraska / Department of Defense Interservice Physician Assistant Program