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Our Physicians

   

W. Edwin Conner, MD

Dr. Conner has practiced colorectal surgery in Kansas City for over 30 years. Dr. Conner received his medical degree from the University of Maryland School of Medicine in Baltimore. He completed his residency in general surgery at the Southern Illinois University in Springfield, where he realized that he enjoyed living in the Midwest.  Following his specialty training in colon and rectal surgery at the Ochsner Clinic in New Orleans, he returned to the Midwest in 1979 to join Dr. John W. Heryer in practice; together, they were the first two board-certified colon and rectal surgeons in Kansas.

Dr. Conner is a very active member of the surgery faculty at The University of Missouri - Kansas City School of Medicine and is the recipient of the House Staff Teaching Award from the Resident Staff.  Dr. Conner’s special interests include restorative surgery for inflammatory bowel disease and sphincter-saving procedures for cancer. Click here to see Dr. Conner's CV

Pierre Castera, MD

Dr. Castera earned his Bachelor of Science degree in Biology at The University of Puerto Rico. He attended medical school at The University of Puerto Rico School of Medicine and completed his residency in general surgery at the Stony Brook University Medical Center in Long Island, New York.   He then served as a General Surgeon with the US Army.  Shortly after fulfilling his military commitment, he completed his fellowship in colorectal surgery at The University of Texas at Houston.   

Following his specialty training, Dr. Castera began practicing in Kansas City.  He has specialized in colorectal surgery for over 17 years; his special interests include sphincter-preservation techniques for surgical removal of rectal cancer, as well as laparoscopic intervention for a minimally invasive alternative to open abdominal surgery.  Dr. Castera is distinguished by his pioneering use of the PPH stapling procedure for suitable hemorrhoid disease.  Dr. Castera is fluent in both English and Spanish. 
Click here to see Dr. Castera's CV

Lina O'Brien, MD

Dr. O'Brien graduated cum laude in 1991 from the accelerated, six-year BS/MD program offered by Pennsylvania State University in cooperation with Jefferson Medical College.  She completed her general surgery residency at Philadelphia’s Thomas Jefferson University Hospital in 1996.  After a year of researching hereditary colon cancer, Dr. O’Brien secured her colorectal surgery fellowship at Thomas Jefferson and was subsequently appointed to the University Hospital faculty.  As Clinical Assistant Professor of Surgery, Dr. O’Brien collaborated with and trained both general and colorectal surgery residents until she relocated to Kansas City in 2001.

In addition to engaging in private practice, Dr. O’Brien is involved in training the general surgery residents at The University of Missouri - Kansas City School of Medicine.  Dr. O’Brien is especially interested in treating rectal cancer with an emphasis on sphincter preservation.  She also has extensive experience in laparoscopic surgery for both malignant and benign disease.
Click here to see Dr. O'Brien's CV

 

Ben Mizrahi, MD

 Dr. Mizrahi graduated cum laude in 1995 with a Bachelor of Science in Biology from the University of Miami.  He received his medical degree from University of Vermont College of Medicine in 2003 and completed his general surgery residency at the University of South Florida in 2008.  Prior to his colorectal surgery fellowship at the Colorectal Clinic of Orlando, Dr. Mizrahi elected to pursue an additional year of sub-specialty training in minimally invasive colorectal surgery and advanced rectal care management at Marks Colorectal Clinic in Pennsylvania.  He joins us here at Colorectal Surgery Associates in September, 2010 immediately upon completion of his specialty training. 

Dr. Mizrahi is distinguished by his rectal cancer staging techniques and his laparoscopic, minimally-invasive approach to surgical removal of rectal and colon cancer.  Dr. Mizrahi’s special interests include: the non-incision TEM (Transanal Endoscopic Microsurgery) removal of low-lying rectal lesions; complex anorectal disorders; pelvic floor dysfunction (constipation, rectocele, incontinence, prolapse); and, of course, sphincter-saving procedures for cancer removal. 
Click here to see Dr. Mizrahi's CV

 
   
   
 
 
   
                       

Office Phone: 816-941-0800

            

 

        

            

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