Nathan Walker, MD Internal Medicine, Transformations Medical Weight Loss Program, Christie Clinic in Champaign on Windsor1801 W Windsor RdChampaign, IL 61822 Christie Clinic in Champaign on Windsor1801 W Windsor RdChampaign, IL 61822 (217) 366-5434 Accepting New Patients View Profile for Nathan Walker, MD Schedule an AppointmentNew Patient Schedule an AppointmentEstablished Patient close Larry Williams, Health Coach Transformations Medical Weight Loss Program, Christie Clinic in Champaign on Windsor1801 W Windsor RdChampaign, IL 61822 Christie Clinic in Champaign on Windsor1801 W Windsor RdChampaign, IL 61822 (217) 366-7460 Accepting New Patients View Profile for Larry Williams, Health Coach close close