Harry Siavelis, MD, FACS

Integrated Oncology Program, Surgery

92 Ratings
Years in Practice: 25 years
Practices In: Bloomingdale, Elmhurst, Hinsdale, Lombard
Patients Seen: All Ages

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.

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Board Certifications
English, Greek
Awards & Accolades
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
Clinical Interests

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

Personal Interests

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
Advocate Good Samaritan Hospital
3815 Highland Avenue Downers Grove, Illinois 60515 630-275-2700 Get Directions
Elmhurst Memorial Hospital
155 E. Brush Hill Road Elmhurst, Illinois 60126 331-221-1000 Get Directions
University of Illinois College of Medicine Graduation Date: 1993 Degree: MD
Loyola University Medical Center Resident in General Surgery
Provider’s Publications
Transoral Incisionless Fundoplication (TIF) Elmhurst Hospital


Abdominal Surgery, Adrenal Surgery, Appendectomy, Bile Duct Surgery, Breast Surgery, Carcinoid Tumor Removal, Cholecystectomy / Gall Bladder Surgery, Cleft Lift, Colon Polyp Removal, Colon Surgery, Colonoscopy, Endocrine Surgery, Endoscopy, Gallbladder Surgery, General Surgery, Hernia Surgery, Laparoscopic Hiatal Hernia Repair, Malignant Skin Excision/Skin Lesions, Minimally Invasive Laparoscopic Surgery, Muscle Biopsy, Nissen Fundoplication, PD Cath, Port Placements, Rectal/Anal Surgery, Robot-Assisted Surgery, Spleen Surgery, Stomach Surgery, Surgical Oncology, Temporal Artery Biopsy, Thyroid/Parathyroid Surgery, Transoral Incisonless Fundoplication (TIF)


Colorectal Cancer, Crohn's Disease, Hidradenitis, Lumps/Bumps/Cysts/Lipomas, Pilonidal Cysts, Sarcoma, Thyroid/Parathyroid Cancer, Trauma Related Injuries


Ratings Category

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.

Patient Satisfaction Rating

92 Ratings

Likelihood of recommending this provider

92 Ratings

Provider included you in decisions

92 Ratings

Provider showed concern

92 Ratings

Provider explained things clearly

92 Ratings

Provider discussed treatment options

91 Ratings


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.
"Wonderful doctor...truly listens and responds to each symptom described. He stayed engaged for the entire...very personable."
Feb. 19, 2024
"My appointment was scheduled by Dr. Cordero's staff , which was greatly appreciated. Dr. Siavelis was kind and professional. I really was confidant in his care. He kept my pain to a minimum and was very thorough in his treatment. His staff was equally kind and professional. I was very pleased to be seen so quickly and by such a great team."
Jan. 2, 2024
"Doctor explained everything in detail."
Nov. 20, 2023
"Dr, Siavelis was very compassionate and very caring throughout entire visit. He explained everything in a way we understood."
Oct. 20, 2023
"*Dr. Harry Siavelis, is very efficient, compassionate, poor at explaining & listens to your concern, caring, good explanation what is the best options for you!!!"
Oct. 18, 2023
"Friendly, helpful, kind & knowledgeable surgeon."
Oct. 10, 2023
"Dr took the time to answer all my questions, I did not feel rushed at all."
Sep. 24, 2023
"Dr Siavelis answered all my questions prior to starting the procedure"
Sep. 20, 2023
"Dr. Was very thorough and explained everything so I could understand what he was saying."
Aug. 27, 2023
"Listened well, explained procedures well, answered questions thoroughly, had very good attitude, professional."
Aug. 4, 2023
"Staff was very attentive."
Aug. 1, 2023
"*Doctor Siavelis and the staff are just outstanding. Their professionalism and competency are second to none."
Jul. 28, 2023
"The visit and Dr. Siavalis could not have gone better"
Jul. 15, 2023
"Caring and professional staff"
Jul. 10, 2023
"Fantastic skills and service"
Jun. 17, 2023
"Listened to ALL my symptoms before recommending a course of action...very rare. Made sure I understood the next steps....very personable."
Jun. 4, 2023
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