Sumit Mamun is a Hospital Medicine doctor in Live Oak, Texas. Dr. Mamun is highly rated in 2 conditions, according to our data. His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Opioid Induced Constipation, Saddle Pulmonary Embolism, Gastrostomy, and Bone Marrow Aspiration. Dr. Mamun is currently accepting new patients.