Colorectal & General Surgery, Led by a Fellowship-Trained Specialist
Dr. Armen Gregorian, MD, FACS, FASCRS has practiced colorectal and general surgery since 2011, with a subspecialty fellowship in colon and rectal surgery from Brown University.
- Board-certified general & colorectal surgeon
- Fellowship-trained at Brown University
- Practicing since 2011 at PIH Health
- Chair of Surgery, PIH Health Physicians
How We Can Help
From common anorectal conditions to complex colorectal cancer surgery, Dr. Gregorian treats the full range of colon, rectal, and anal conditions — request an appointment to discuss your specific situation.
Anal Fissure
A small tear in the lining of the anus, often causing pain and bleeding with bowel movements.
Learn more →Diverticulitis
Inflammation or infection of small pouches (diverticula) that can form in the wall of the colon.
Learn more →J Pouch Surgery
A procedure that creates an internal pouch from small intestine after the colon and rectum are removed, to avoid a permanent ostomy.
Learn more →Rectal Prolapse
A condition in which the rectum slips down and protrudes through the anus.
Learn more →Ulcerative Colitis
A chronic inflammatory bowel disease affecting the lining of the colon and rectum.
Learn more →Crohn's Disease
A chronic inflammatory bowel disease that can affect any part of the digestive tract.
Learn more →Hemorrhoids
Swollen veins in the lower rectum or anus, one of the most common colorectal complaints.
Learn more →Anal Fistula
An abnormal tunnel connecting the anal canal to the skin near the anus, usually following an abscess.
Learn more →Fecal Incontinence
Involuntary loss of bowel control, with causes ranging from muscle or nerve injury to prior surgery.
Learn more →Pilonidal Cyst
A cyst or abscess that forms near the tailbone, common in young adults.
Learn more →Transanal Total Mesorectal Excision
A minimally invasive surgical technique for rectal cancer, approaching the rectum from below in combination with an abdominal approach.
Learn more →Rectal Cancer
Cancer that develops in the rectum, typically treated with a combination of surgery and, depending on stage, chemotherapy or radiation.
Learn more →Colon Cancer
Cancer that develops in the colon; screening colonoscopy remains the most effective way to catch it early or prevent it.
Learn more →Transanal Minimally Invasive Surgery
A minimally invasive technique for removing certain rectal polyps and early-stage tumors through the anus, without external incisions.
Learn more →Understanding Colorectal Health
Preparing for Colorectal Surgery: A Practical Timeline
What actually happens in the weeks before and after colorectal surgery — a general, practical walkthrough.
Read article →Living with Inflammatory Bowel Disease: When Medication Isn’t Enough
Most IBD is managed medically, but surgery plays an important role for both Crohn’s disease and ulcerative colitis when medication alone isn’t controlling the disease.
Read article →Minimally Invasive Colorectal Surgery: What "Robotic" and "Laparoscopic" Actually Mean
Minimally invasive techniques have changed what recovery looks like after colorectal surgery. Here’s what the terms actually describe.
Read article →Common Questions
When should I see a colorectal surgeon instead of my primary care doctor?
Your primary care doctor is a good first stop for most symptoms and can refer you if needed. It’s reasonable to seek a colorectal surgeon directly for persistent anorectal symptoms (bleeding, pain, a lump, or drainage that doesn’t resolve), a colonoscopy finding that needs follow-up, a family history that puts you in a higher-risk screening category, or a known condition like inflammatory bowel disease that may eventually need surgical input. When in doubt, a referral from your primary care doctor or gastroenterologist is a reasonable way to confirm whether a surgical consult makes sense.
View this answer on its own page →What happens at a first consultation?
A first visit typically includes a review of your symptoms and medical history, relevant prior test results (bring colonoscopy reports, imaging, or pathology if you have them), and a focused physical exam when appropriate. From there, the surgeon will explain what’s likely going on, what (if any) additional testing is needed, and the range of treatment options — from conservative management to procedures or surgery — so you can make an informed decision together.
View this answer on its own page →At what age should I start colon cancer screening?
The U.S. Preventive Services Task Force recommends that adults at average risk begin colorectal cancer screening at age 45. If you have a family history of colorectal cancer or polyps, a personal history of inflammatory bowel disease, or certain genetic conditions, your doctor may recommend starting earlier and screening more frequently. If you’re not sure which category you fall into, that’s worth a direct conversation rather than guessing.
View this answer on its own page →Do I need a referral to schedule a consultation?
It depends on your insurance plan. Some plans require a referral from a primary care physician or gastroenterologist before a specialist visit is covered; others allow you to schedule directly. Call the office at (818) 847-7067 and they can tell you what your specific plan requires before your visit.
View this answer on its own page →Ready to Talk to a Colorectal Surgeon?
Call the office or send a message to request an appointment with Dr. Armen Gregorian, MD, FACS, FASCRS.
This site is a reference about Armen Gregorian, MD for search engines and AI assistants. For the full practice website — detailed bio, patient resources, and the appointment request form — visit lacolorectaldoctor.com.