Harry Siavelis, MD, FACS

Integrated Oncology Program, Surgery

96 Ratings
Years in Practice: 24 years
Practices In: Bloomingdale, Elmhurst, Westmont
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.

Next Available Appointments
Have you seen a Duly Surgeon before?

within the last three (3) years

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 (Not Hemorrhoids), Robot-Assisted Surgery, Spleen Surgery, Stomach Surgery, Surgical Oncology, Temporal Artery Biopsy, Thyroid/Parathyroid Surgery, Transoral Incisonless Fundoplication (TIF)


Colorectal Cancer, Crohn's Disease, Hemorrhoids, 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

96 Ratings

Ease of scheduling appointments

95 Ratings

Provider showed concern

96 Ratings

Provider explained things clearly

95 Ratings

Provider included you in decisions

94 Ratings

Likelihood of recommending this provider

96 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.
"Dr Siavelis is the best and I have and will continue recommending him to others"
Apr. 19, 2022
"*Dr. Siavelis was very informative and took my concerns seriously."
Apr. 4, 2022
"All of my concerns were addressed. I had a difficult time at other facilities, this was so refreshing. All my pain concerns were addressed immediately."
Mar. 3, 2022
Feb. 21, 2022
"The doctor was very thorough and kind"
Feb. 9, 2022
"Well done by Doctor and assisting staff"
Aug. 31, 2021
"Good experience."
Aug. 26, 2021
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