Our office is a very relaxed and stress-free environment. We strive to tailor treatment according to each patient's individual needs. I use the latest techniques and proven procedures including minimally invasive techniques and robotic surgery. My philosophy includes using a nonsurgical approach, whenever it would provide the best treatment option. The overall goal is to return every patient back to better health.
Surgery
English
Greek
Breast surgery, Minimally invasive treatment including Gallbladder, Hernia and Colon surgeries, Special expertise in Hiatal hernia repairs and Surgery to stop gastroesophageal reflux (GERD), including endoscopic approaches
CrossFit Level 1 trainer, Healthy lifestyle, Exercise, Sailing, Tennis, Golf, Gardening, Hiking
Fellow, American College of Surgeons
American Society of Breast Surgeons
American Medical Association
Illinois State Medical Society
Metropolitan Chicago Chapter of American College of Surgeons, Member committee
Society for Laparoendoscopic Surgeons
Hellenic Medical Society of Chicago
Western Surgical Association
Elmhurst Hospital Trauma Committee
Castle Connolly 2025 Top Doctor
2025
Chairman, Department of Surgery at Adventist Glen Oaks Hospital
2003
Director of Trauma, Adventist Glen Oaks Hospital
2001
Resident of the Year
2000
Surgeon Champion for the National Surgical Quality Improvement Program for Elmhurst Hospital
2000
Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.
Great care provided by all involved in my surgery from start to finish. Surgeon did a great job!
It was all good
Great care
Doctor was very professional and respectful. I would recommend
Dr Siavelis is a very positive doctor. He explained to me what he saw in pictures they took of affected area and how it could be handled.
The Patient Satisfaction Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.
Patients Seen: All Ages
Practices In: Bloomingdale, Elmhurst, Hinsdale, Lombard