Colorectal Surgeons


World Renowned Colon and Rectal Surgeons Dr. Sergio W. Larach and Dr. Sam Atallah work together with Elisa Bianchi and Annamarie Kondek to bring the very best advanced colon and rectal surgery options to the Central Florida community.

We utilize a state of the art surgery facility in Central Florida called Endo-Surgical Center of Florida as well as local hospitals.

Call today (407) 384-7388 to discuss your surgery options with our physicians.

  • Elisa Maria Bianchi
    Digestive and Liver Center of Florida

    Dr. Elisa Maria Bianchi is a Board-Certified General Surgeon who completed a Colorectal Surgery Fellowship at Zucker School of Medicine at Hofstra/Northwell Health in New York, where her specialty training encompassed a variety of small bowel, colon, rectal and anal pathologies which included malignant, benign and inflammatory disease (Crohn's disease and ulcerative colitis). She previously completed her residency in General Surgery at Loma Linda University Health with particular emphasis in robotic techniques.

    Dr. Bianchi completed her medical training at the University Illinois at Chicago. Prior to that she completed an undergraduate degree in Bioengineering at the University of Illinois and worked as an engineer at Abbott Laboratories. Dr. Bianchi is a fluent Spanish speaker.

    Elisa Bianchi prides herself on developing a close rapport with her patients and making sure that all medical options, not only surgery, are explored to optimally treat disease. She takes a holistic approach to the practice of medicine that is rooted in her desire to engage her patients as equal partners in shared medical decision-making.

  • Sergio Larach, MD, FASCRS, FACS
    Colon and Rectal Surgeon

    Dr. Sergio Larach completed his fellowship at the University of Texas Medical School. He is board certified in colon and rectal surgery. He has published numerous articles on colon and rectal surgery, conducted clinical research, and authored book chapters in his specialty. Dr Larach has been selected as a 'Top Doctor in Orlando' by Orlando Magazine for several years

    His interests include the whole spectrum of colorectal issues, including colon and rectal cancer, inflammatory bowel disease, and ano-rectal diseases. Dr. Larach has become a pioneer in performing laparoscopic surgical procedures, and he recently developed the TAMIS procedure for the treatment of rectal tumors

    Dr. Sergio Larach has held multiple professional appointments through his career, including Program Director of Orlando Regional and Florida Hospital's Colon and Rectal Fellowship Program. He is currently a Clinical Associate Professor at University of Central Florida and Clinical Associate Professor at Florida State University.

    Dr. Sergio Larach is the Associate Director of International Advisory Affairs of the International Society of University of Colon and Rectal Surgeons. He is also a reviewer for Surgical Endoscopy.

  • Sam Atallah, MD FASCRS, FACS
    Director of Research & Clinical Trials Colon and Rectal Surgeon

    Dr. Atallah is among the most well known colorectal surgeons in the world. He moved to Orlando in 2007 after completing training at Houston's Texas Medical Center with Surgical Oncology training at MD Anderson Cancer Center where his training had earned him double-board certification in General Surgery and Colorectal Surgery. Two years to the day after completing fellowship training in colon & rectal surgery, Dr. Atallah performed the world's first TAMIS operation in Winter Park, FL on June 30, 2009. This created a new approach to treating rectal cancers and polyps, that is now being practiced in more than 50 countries. Dr. Atallah pioneered robotic transanal surgery and was the first in the world to perform this technique. He is one of the leaders in advanced technology for rectal cancer surgery and has developed the technique of stereotactic navigation for transanal total mesorectal excision (taTME) -- an important step forward in the evolution of computer-assisted surgery. Complex treatment of rectal cancer and surgical management of this disease through the new techniques of TAMIS and taTME represent Dr. Atallah's principal interests in colorctal surgery; and he is currently producing a textbook on these topics scheduled for 2019 publication by Springer Nature. He is also actively involved in the design and assessment of next-generation robotic systems that will be smaller, sleeker, and able to work in places and spaces never before

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