
Hereditary Colorectal Cancer Care in Los Angeles
Expert screening, prevention, and surgery for hereditary colorectal cancer with Dr. Moshe Barnajian — protecting you and your whole family.
Protecting Families From Inherited Risk
Some colorectal cancers run in families because of inherited gene changes, such as Lynch syndrome and familial adenomatous polyposis. Recognizing hereditary colorectal cancer risk early is one of the most powerful ways to prevent cancer entirely.
Dr. Barnajian builds a personalized surveillance and prevention plan around your specific risk, coordinates genetic testing, and, when appropriate, performs risk-reducing surgery. Because these syndromes affect whole families, we make it easy for relatives to be evaluated too.
Trained at Cedars-Sinai, Dr. Barnajian brings expertise in hereditary cancer syndromes and preventive surgery.

Common Hereditary Syndromes
Different inherited syndromes carry different risks and call for different surveillance and prevention strategies.
Lynch Syndrome
The most common inherited colorectal cancer syndrome, requiring frequent colonoscopy starting at a young age.
FAP
Familial adenomatous polyposis causes hundreds of polyps and often calls for risk-reducing surgery.
Strong Family History
Even without a named syndrome, multiple affected relatives warrant earlier and more frequent screening.
Understanding Your Risk
Warning signs of inherited risk include colorectal cancer diagnosed at a young age, multiple relatives with related cancers, a personal history of many polyps, or a known family mutation. Genetic counseling and testing can define your risk precisely.
A positive result is not a diagnosis; it is a roadmap. For some patients, intensified surveillance is enough, while others benefit from removing the at-risk colon before cancer can develop. Modern robotic techniques make preventive surgery gentler and faster to recover from.
Screening, Prevention, and Surgery
Dr. Barnajian offers the full continuum of care, from surveillance to risk-reducing and cancer surgery.
Genetic Coordination
We help arrange genetic counseling and testing to define your risk and guide your plan.
Intensified Surveillance
Earlier, more frequent colonoscopy catches polyps and cancers at their most treatable stage.
Risk-Reducing Surgery
For high-risk patients, removing the at-risk colon can prevent cancer entirely.
Robotic Cancer Surgery
If cancer is present, minimally invasive surgery is coordinated with oncology care.
Family Screening
We make it simple for relatives across Southern California to be evaluated and protected.

What Your Visit Looks Like
Dr. Barnajian reviews your personal and family history, coordinates any genetic testing, and builds a clear, personalized plan to protect your health.
Before your appointment
Gather your family history and any prior colonoscopy, pathology, or genetic testing records.
During your visit
Your consultation reviews your risk, screening schedule, and whether preventive surgery is appropriate.
After your care
You receive an ongoing surveillance plan and help coordinating screening for at-risk relatives.
Same-week appointments available
Why Patients Choose Dr. Barnajian
Dr. Moshe Barnajian is a board-certified colorectal surgeon (FASCRS), Cedars-Sinai trained, experienced in hereditary cancer syndromes, preventive surgery, and coordinated family care.
His practice offers rapid access, coordinated genetic and oncology care, and most PPO insurance accepted with benefits verified in advance. Call (424) 622-9028 to schedule.
Hereditary Cancer Care Across Los Angeles
Dr. Barnajian cares for families with hereditary colorectal cancer risk from Beverly Hills, Santa Monica, Pasadena, and throughout Los Angeles, coordinating genetic testing and screening for relatives.
For trusted information on hereditary colorectal cancer and colorectal health, visit the American Society of Colon & Rectal Surgeons, or explore all of Dr. Barnajian's colorectal services.
Hereditary Colorectal Cancer FAQs
Should my family members be tested too?
Often, yes. Because these syndromes are inherited, first-degree relatives may share the risk. We make it easy to coordinate testing and screening for your whole family.
Does a positive genetic test mean I will get cancer?
No. It means your risk is higher, which is exactly why surveillance and prevention are so effective. Many patients never develop cancer thanks to a proactive plan.
When should I see a specialist about hereditary colorectal cancer?
You should be evaluated if you have a new diagnosis, persistent symptoms, or a significant family history. Early, expert evaluation of hereditary colorectal cancer leads to more options and better outcomes. Call (424) 622-9028 to be seen this week.
How is hereditary colorectal cancer managed?
Care is individualized and coordinated with your other physicians when needed. Dr. Barnajian explains every option and recommends the safest, most effective plan.
Do you accept insurance?
Yes. Most PPO plans are accepted and our team verifies your benefits before your visit. Call (424) 622-9028 to confirm coverage.
Protect Your Family in Los Angeles
Expert screening, prevention, and surgery from a leading colorectal surgeon. Prompt consultations available.
