Brain Injury Rehabilitation Specialists
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Medical Team

Physicians supervise the planning and implementation of each individual's comprehensive rehabilitation plan. Our rehabilitation teams work closely with these physicians and other specialists to maximize functional outcomes.


Dr. Alan Hilgerson

Dr. Hilgerson is an internal medicine physician and serves as On With Life's general medical director. His role is to ensure our persons served stay healthy enough to participate in the high intensity and high frequency therapy at On With Life. He completed graduated with honors from Des Moines University College of Osteopathic Medicine and completed both his internship and residency at the University of Iowa Hospitals and Clinics. He is board certified by the American Board of Internal Medicine. He is affiliated with Broadlawns Medical Center and Des Moines University where he serves as an assistant professor for family medicine, internal medicine and as a doctor of their osteopathic medicine program.

Dr. Todd Troll

Dr. Troll serves as On With Life's rehabilitation medical director, and his goal is to enhance and restore functional ability and quality of life for our persons served. He received his medical degree from Indiana University School of Medicine and completed his residency at Medical College of Ohio. He is board certified by the American Board of Physical Medicine and Rehabilitation and serves as a provider at the Iowa Clinic. 

Lindsay Samuelson, FNP

Lindsay graduated from Kaplan University in 2017 and specializes in internal medicine. She has more than 14 years nursing experience in internal medicine, long-term care and home care.