Department General Surgery
Primary Location Hillcrest Hospital
Type of Doctor Adults Only
Languages English
Surgeon Yes
Locations Specialties & Treatments

Treatment & Services

  • Abdominal Perineal Resection
  • Abdominal Surgery
  • Abdominal Wall Reconstruction
  • Advanced Laparoscopic Surgery
  • Appendectomy
  • Bile Duct Stone Removal
  • Biliary Surgery
  • Breast Biopsy
  • Breast Cancer Surgery Program
  • Breast Conservation Surgery
  • Breast Diagnostics
  • Breast Surgical Oncology
  • Breast Ultrasound
  • Cancer Center
  • Colectomy
  • Colon Surgery
  • Colonoscopy
  • Complex Abdominal Hernia Repair
  • Diagnostic Laparoscopy
  • Endocrine Surgery - Thyroid And Parathyroid
  • Endoscopy
  • Flexible Sigmoidoscopy
  • Gastrectomy
  • Gastrointestinal Exams
  • Gastrointestinal Surgery
  • Hernia Open Repair Surgery
  • Hernia Surgery
  • High Risk Breast Cancer
  • Intestinal Surgery
  • Laparoscopic Abdominal Perineal Resection
  • Laparoscopic Antireflux Surgery
  • Laparoscopic Cholecystectomy
  • Laparoscopic Hernia Surgery
  • Laparoscopic Incisional Hernia Repair
  • Laparoscopic Inguinal Hernia Repair
  • Laparoscopic Lymph Node Biopsy
  • Laparoscopic Peritoneal Dialysis Catheter Placement
  • Laparoscopic Solid Organ Surgery
  • Laparoscopic Splenectomy
  • Laparoscopic Surgery
  • Laparoscopic Surgery for Digestive Diseases
  • Laparoscopic Ventriculoperitoneal Shunt Placement
  • Liver Biopsy
  • Minimally Invasive Breast Surgery
  • Minimally Invasive Surgery
  • Mohs Surgery
  • Nipple & Skin Sparing Mastectomy
  • Nissen Fundoplication
  • Office Ultrasound Guided Biopsy
  • Open Inguinal And Abdominal Hernia Repair
  • Pancreas Resection
  • Pancreatic Surgery
  • Parathyroid Surgery
  • Retroperitoneal Lymph Node Dissection
  • Second Opinion Breast Cancer
  • Sentinel Lymph Node Procedures
  • Sentinel Node Biopsy
  • Single incision laparoscopic surgery
  • Single-port Surgery
  • Splenectomy
  • Stereotactic Brain Biopsy
  • Stereotactic Breast Biopsy
  • Surgery
  • Surgery For Breast Cancer
  • Surgery for Diseases Of The Breast
  • Surgical Drains
  • Surgical Endoscopy and Endoscopic Procedures
  • Thyroidectomy
  • Tracheostomy
View all 69 Treatment & Services +

Specialty in Diseases & Conditions

  • Abdominal Abscess
  • Abdominal Pain
  • Achalasia
  • Anal Abscesses
  • Anal Cancer
  • Anal Fissures
  • Appendicitis
  • Barrett's Esophagus
  • Benign Breast Disease
  • Bile Duct Diseases
  • Bile Duct Obstruction
  • Bile Duct Stones
  • Breast Abscess
  • Breast Cancer
  • Breast Disease
  • Breast Infections
  • Breast Lump
  • Breast Pain
  • Cancer
  • Carcinoid Syndrome
  • Collagenous Colitis
  • Colon Diseases
  • Colon Polyps
  • Colorectal Cancer
  • Crohn's Disease
  • Diverticulosis
  • Ductal Carcinoma In Situ
  • Duodenal Atresia
  • Duodenal Polyps
  • Eosinophilic Esophagitis
  • Esophageal Cancer
  • Esophagitis
  • Extrahepatic Bile Duct Cancer
  • Fissure
  • Fistulas
  • Gallbladder & Biliary Tract Disease
  • Gallbladder Disease
  • Gallstones
  • Gas (Digestive)
  • Gastritis
  • Gastroenteritis
  • Gastroesophageal Reflux (GERD)
  • GI Bleeding
  • Goiter
  • Gynecomastia
  • Heliocobactor Pylori
  • Hemorrhoids
  • Hepatobiliary Disease
  • Hernias
  • Hiatal Hernia
  • Hypercalcemia
  • Hyperparathyroidism
  • Hyperthyroidism
  • Inflammatory Bowel Disease (IBD)
  • Inguinal Hernia
  • Intestinal Carcinoid Tumors
  • Intra-abdominal Cancer/Tumor
  • Intraductal Papilloma
  • Intussusception
  • Irritable Bowel Syndrome (IBS)
  • Large Intestine Cancer
  • Male Breast Cancer
  • Melanoma
  • Nipple Discharge
  • Pancreatitis
  • Parathyroid Cancer
  • Parathyroid Disease Description
  • Pediatric Breast Anomalies
  • Pediatric Hydrocele | Hernia
  • Recurrent Breast Cancer
  • Sarcoma
  • Sebaceous Cysts
  • Sepsis
  • Skin Cancer
  • Small Intestine Cancer
  • Soft Tissue Sarcoma
  • Stomach Cancer
  • Temporal Arteritis
  • Thyroid Cancer
  • Thyroid Disease
  • Thyroid Nodule
  • Ulcerative Colitis
View all 82 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Residency - Mount Sinai Medical Center (Closed)
General Surgery
Cleveland, OH USA

Medical Education - Medical College of Wisconsin
Milwaukee, WI USA

Undergraduate - University of Wisconsin
Madison, WI USA

Internship - Mount Sinai Medical Center of Cleveland
General Surgery
Cleveland, OH USA


  • General Surgery

Specialty Interests

biliary surgery, biliary system and splenectomy, breast, breast and endocrine, breast cancer, breast diagnostics, breast diseases, breast surgery, colon surgery, endocrine surgery - thyroid and parathyroid diseases and surgery, endocrine surgery (thyroid and parathyroid), general surgery, hernia and thyroid glands, hernia repair, hernia repairs, hernia surgery, Hiatal Hernia, surgical treatment of diseases of the breast

Research & Publications

Research & Publications

See publications for William O'Brien, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 10/29/2018, Dr. O'Brien has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

190 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Listens 4.9
Courtesy, Respect & Concern 4.9
Knows Medical History 4.7
Time Spent with Patient 4.9
Patient Rating of Doctor 4.9

30 Patient Comments

Reviewed on Jul 10, 2019

excellent service from all. Nurse and Dr. very compassionate.

Reviewed on Jul 3, 2019

Wonderful doctor.

Reviewed on Jun 17, 2019

Dr OBrien is an awesome compassionate caregiver with excellent bedside skills ... he is definitely an asset to the CCF

Reviewed on May 29, 2019

have recommended dr O'Brien to friends

Reviewed on May 8, 2019

I think Dr O'Brien is an excellent doctor.

Reviewed on Apr 29, 2019

overall Dr O brien was very courteous and professional and took the time to get to know me and my interest which means a lot to me

Reviewed on Apr 24, 2019

Dr. Obrian and his staff are professional, respectful and knowledgeable. He is an outstanding doctor that listens and puts his patient concerns first.

Reviewed on Apr 24, 2019

I was a little anxious about this surgery but Dr. O'Brien and his staff answered all of my questions and told me everything on what to expect. I was very happy I was able to get it done by him.

Reviewed on Apr 22, 2019

the doctor was EXTREMELY friendly and caring. would recommend Cleveland Clinic to ANYONE!

Reviewed on Apr 12, 2019

This was by far one of the best experiences I've had with any Doctor

Reviewed on Apr 1, 2019

Dr. O brien referred to pain management refused to order diagnostics despite symptoms explained. i sought a second opinion and was diagnosed with pelvic muscle tear, oblique tear and hernia.

Reviewed on Apr 1, 2019

great dr and office staff, clean, understood my concerns and made the time to listen and thoroughly make sure I was on back on track

Reviewed on Mar 13, 2019

a very Good , Knowledgeable & Kind Doctor !

Reviewed on Mar 11, 2019

Dr. O'Brien went out of his way to help me find a supporting surgeon and adjusted his schedule to perform a concurrent surgery during the time he would normally have been in clinic and lunch. Amazing. I am grateful.

Reviewed on Mar 6, 2019

Dr O'Brien and his staff are ver comforting and calming. I was extremely nervous and they were right there to put my mind at ease.

Reviewed on Mar 4, 2019

Dr. O'Brien helped to add levity to an otherwise stressful situation and has a very easy going bedside manner, which I really appreciated! I have not had the surgery yet, but I hear very good things about him. I hope that it will go as smoothly as he is sure that it will go. it is nice to hear that kind of confidence from your surgeon!

Reviewed on Feb 25, 2019

Dr. O'Brien cared about me as a human being. He scheduled tests to ensure my health. If there was a 10 here, I'd check it, but 5 is the highest possibility on this survey.

Reviewed on Feb 4, 2019

I was in and out in a matter of minutes. Friendly and courteous staff and doctor.

Reviewed on Jan 23, 2019

Dr. Obrian is very professional, knowledgeable, and compassionate. His staff was great, helpful, and friendly.

Reviewed on Jan 23, 2019

great doctor and great team with him at breast center

Reviewed on Jan 16, 2019

the entire dept from check in to check out is wonderful, professional, compassionate. Dr Obrien is top notch.

Reviewed on Jan 11, 2019

Competent.pleasant doctor

Reviewed on Jan 9, 2019

*Dr. O'Brien is a wonderful dr.

Reviewed on Dec 3, 2018

I had excellent care from both Dr. Obrien and his staff. Dr. Obrien was very kind, and answered all of my questions. I feel that I had an excellent Surgeon!

Reviewed on Nov 21, 2018

Good doc with great eye contact and the ability to listen and hear me. He helped me feel cared for and respected.

Reviewed on Oct 26, 2018

For *Dr. O'Bien, he is the best doctor I have ever had. Surgery team also was great.

Reviewed on Oct 17, 2018

Dr.William O'Brien, my breast surgeon, is a very caring, understanding and compassionate doctor. He performed my double mastectomy from breast cancer and recently the latest related surgery. I would recommend him to anyone looking for a great surgeon.

Reviewed on Oct 8, 2018

William Obrien M.D. is the BEST doctor, very carring.

Reviewed on Sep 24, 2018

Dr. O'Brien is in a top spot on my list of excellent providers during my cancer care.

Reviewed on Sep 24, 2018

I routinely need a rectal exam due to having had anal cancer treatment. Dr. O'Brien is always respectful of privacy during this exam.

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