About Our Team

medical weight managementDr. Mark A. Stefaniuk, MD

Dr. Mark Stefaniuk, MD,  earned his Bachelor of Science in Kinesiology at the University of Michigan, Ann Arbor, in 1994 and his Doctor of Medicine at the Saba University School of Medicine in Saba, Netherlands (Dutch Antilles) in 2000. He completed his residency in family medicine at the Duke University Medical Center, Durham, NC, in 2003, and is board certified in Family Medicine. He has been practicing medicine in the Chicago area since 2003.  Known for his relaxed and engaging manner, Dr. Stefaniuk says he enjoys putting his patients at ease. Most of all, he says he tries to stress the importance of a healthy diet and exercise to all his patients, especially those struggling with their weight.

maintaining healthy weightSusan M. Johnson, RN

Susan Johnson holds a Bachelor of Science in Health Arts from the University of St. Francis in Joliet, Illinois, and a Registered Nurse diploma from the Swedish American School of Nursing in Rockford, Illinois. She is licensed in Illinois and Wisconsin and has more than 25 years of nursing experience. Prior to joining Why Weight? in 2002, Susan specialized in weight loss at the Nutrisystem program and then with the Optifast Program at Sherman Hospital. Based on her experience, she is convinced the secret to successful weight loss is patience and accountability.

“Other programs will prescribe various medications and then not see the patient for a whole month,” she says. “Here we have accountability. We meet with patients every week or every two weeks. Our goal is to schedule generous time with each patient.  We know that one-on-one support is critical to their success.”