Petros Leinonen practices Thoracic Surgery. He attended Uniformed Services University of the Health Sciences. Uniformed Services University of the Health Sciences has a rank of 72 in research and a 47 in primary care Dr. Petros G. Leinonen is also a published doctor. He has 1 paper published. The most recent paper is: Coloanal anastomosis: maintaining sphincter function after resection of low rectal cancer.