Donald Grewell, DO
Donald Grewell DO is a Family Medicine physician practicing at Billings Clinic, in Billings, Montana. Dr. Grewell served in the Army as a warrant office and helicopter pilot before attending medical school at the College of Osteopathic Medicine of the Pacific in Pomona, California. He completed his residency at the Medical College of Ohio in Toledo. Dr. Grewell is board certified in Family Medicine. He is past president of the Northwest Osteopathic Medical Foundation and served on the Board of Directors from 2013-2018. Dr. Grewell served on the AOA Board of Ethics from 2013-2014, as well as the AOA Board of Delegates from 2014-2019, and he has served as Executive Director of the Montana Osteopathic Medical Association for the last twelve years. Dr. Grewell joined Billings Clinic in 1996.