Accepting new patients now! Delaware Family Medicine and Pediatrics would like to welcome Larissa Ackerson, DO. Dr. Larissa Ackerson grew up in southern MN and received her medical degree from Des Moines University. Prior to joining our office, she practiced family medicine in Indianola. Dr. Ackerson is board certified in Family Medicine. To schedule an appointment please call 515-964-5555. Delaware Family Medicine is conveniently located at 1605 SE Delaware Ave Ste. F Ankeny, IA just north of Target and Kohls.