Meet Dr. Muhammad Beg
Medical Oncologist and GI Cancer Specialist

Holder of the:
Dedman Family Scholar in Clinical Care

In the fight against gastrointestinal cancers, Muhammad Shaalan Beg, M.D., is leading the charge.

I spend a lot time trying to understand what my patients’ needs and expectations are and what they want me to help them achieve. Is it to continue being able to work their current job, keep playing the piano, or attend a grandchild’s graduation party? I need to understand where my patient is coming from.”

As a medical oncologist at UT Southwestern Medical Center’s Simmons Cancer Center, Dr. Beg treats patients with pancreatic, liver, colorectal, esophageal, gastric, and anal cancer as well as rare cancers such as neuroendocrine tumors and gastrointestinal stromal tumors (GIST). He is also Assistant Professor of Hematology and Medical Oncology and is co-Leader of the Gastrointestinal Cancer Multidisciplinary team.

Dr. Beg is very active in clinical research including in leading clinical trials at the Simmons Cancer Center, which evaluate strategies to better treat gastrointestinal cancers. In one such study, he is working on a drug to treat cancer-related diabetes and weight loss, or cachexia.

He believes that GI cancers are best treated by a group of doctors, such as his colleagues at the Simmons Cancer Center Multidisciplinary Gastrointestinal Cancer Team GI cancer patients are a very special and diverse group with specific needs, so Dr. Beg spends a lot of time getting to know his patients to assess their needs and expectations for cancer care. He believes in offering the best, personalized care available, which includes cutting-edge medical care, clinical trials, and innovations in surgery.

Clinical Interests/Specialties 

  • Developmental therapeutics
    • New or latest cancer treatments
  • Gastrointestinal cancer
  • Colorectal cancer
  • Pancreatic cancer
  • Liver cancer
  • Bile duct cancer
  • Stomach cancer
  • Esophageal cancer
  • Anal cancer