Provider facility background
Lina M O'Brien, MD

Lina M O'Brien, MD

Colon and Rectal Surgery
Recognized as a 2019 Top Doctor.

Dr. Lina O'Brien is a board-certified, fellowship-trained colorectal surgeon with Colorectal Surgery Associates in Kansas City, Mo. Dr. O'Brien offers more than 10 years of experience and is affiliated with Research Medical Center. In addition to her colorectal surgery fellowship, Dr. O'Brien also completed a research fellowship in surgery and microbiology. She has authored numerous papers and abstracts in her field and is a clinical assistant professor of surgery. Dr. O'Brien was recognized during her training as an outstanding woman scholar and as an outstanding surgery student. She is a fellow of the American College of Surgery, and a member of the American Society of Colon and Rectal Surgery. Dr. O'Brien is also a diplomat of the American Board of Colon & Rectal Surgery, the American Board of Surgery and the National Board of Medical Examiners. In 2018 Dr. O’Brien was named a Master Surgeon in Colorectal Surgery by the Surgical Review Corporation, she and her colleague, Dr. Ben Mizrahi, were the first two surgeons in the United States to achieve this designation.
Care Philosophy

The physicians of Colorectal Surgery Associates, PC are committed to treating patients as individuals, to communicating their medical care in a manner that patients can understand, and to developing trusting doctor-patient relationships in order to foster the best possible treatment outcomes.

Accepts most insurance. Contact your insurance provider for coverage information

Abdominal Disorders

Abdominal Pain


Anal and Rectal Cancer

Anal Disorders

Anal Fissure

Anal Fistula

Anorectal Abscess



Colon and Rectal Surgery


Colorectal Cancer

Crohn's Disease

Destruction of Anal Tumor

Enterostomy (Laprascopic or Open)

Excision of Rectal or Intestinal Tumor


Gastroenterology Procedures

Gastrointestinal Diseases



Inflammatory Bowel Disease

Intestinal Abscess

Intestinal Obstruction

Intestinal Transplant

Neuroendocrine Tumors

Protectomy (Open or Laprascopic- Swenson and Duhamel Procedures)

Rectovaginal Tumors

Repair of Anal and Rectal Defects

Secondary Malignancies



Ulcerative Colitis

Ventral or Open Incisional Hernia Repair