Ryan M. O'Connor, MD

Middlesex Gastroenterology Associates
Primary Specialty: Gastroenterology
  • Accepting New Patients
Ryan M. O'Connor, MD

About Me

Specialties/Areas of Care


Special Training

Barrett's Ablation

Endoscopic Mucosal Resection (EMR)

Endoscopic Ultrasound


Fecal Microbiota Transplant (FMT)

Languages Spoken



Dr. Ryan O'Connor is a fellowship-trained gastroenterologist at Middlesex Gastroenterology Associates and Middlesex Health.

Dr. O'Connor is certified by the American Board of Internal Medicine in both Internal Medicine and Gastroenterology. He completed his fellowship in gastroenterology at Allegheny General Hospital in Pittsburgh, PA. He served as Chief Resident during his fourth year of residency at Norwalk Hospital, affiliated with the Yale University School of Medicine. Dr. O'Connor attended medical school at St. George's University School of Medicine.

Dr. O'Connor is trained in a number of advanced procedures and has a special interest in inflammatory bowel disease, staging of cancer of the GI tract, and fecal microbiota transplantation.

Special Interests

Fecal Microbiota Transplantation
Gastrointestinal Cancer Staging
Inflammatory Bowel Disease (IBD)




Education & Training

Fellowship Allegheny General Hospital, Pittsburgh, PA
Internship/Residency Norwalk Hospital/Yale University School of Medicine, Norwalk, CT
Medical School St. George's University

Board Certification

American Board of Internal Medicine - Internal Medicine
American Board of Internal Medicine - Gastroenterology

Locations & Appointments

3 Office Locations

1Middlesex Gastroenterology Associates

410 Saybrook Road
Middletown, CT 06457
Middlesex Gastroenterology Associates

2Middlesex Gastroenterology Associates - Madison

1353 Boston Post Road
Madison, CT 06443
Middlesex Gastroenterology Associates - Madison

3Middlesex Gastroenterology Associates - Southington

825 Meriden-Waterbury Road
Southington, CT 06489
Middlesex Gastroenterology Associates - Southington

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