Dr. Billy Y. Lan

I am a colorectal surgeon, which means that I am a surgeon of the abdomen. I treat patients with diseases related to the gastrointestinal tract, specifically with diverticulitis, inflammatory bowel disease, colitis, Crohn’s disease, ulcerative colitis, and also GI cancers, such as colon cancer, rectal cancer, and anal cancer. I try to engage with the patient as much as I can. I use as many visual things as possible, pictures or diagrams, to help explain conditions or treatments a little easier. The benefit of coming to Duke is that we have multiple specialties, so if a diagnosis is unclear to me, I have a team of colleagues who help me and patients can be comfortable knowing a team of specialists can help find a solution.

Dr. Lan is highly rated in 5 conditions, according to our data. His clinical expertise encompasses Proctitis, Familial Colorectal Cancer, Rectal Prolapse, Bladder Reconstruction, and Ureteroscopy.

Dr. Lan is board certified in American Board Of Colon/Rectal Surgery, Colon & Rectal Surgery and American Board Of Surgery, General Surgery. He is actively involved in clinical research, co-authoring 6 peer reviewed articles.