Prof. Daniel Kostov is head of the Surgery Clinic at the high-tech hospital complex, Heart and Brain.

His medical expertise includes oncological diseases of the pancreas, liver, esophagus, stomach, metastatic liver tumors, retroperitoneal tumors, adrenal gland tumors, thyroid surgery, bariatric surgery; Laparoscopic/robotic surgery for diseases of the pancreas, liver, stomach, colon, inguinal hernias and eventrations, adrenal glands, obesity.

He is a regular member of the American Academy of Surgeons, FACS (Fellow of American College of Surgeons). He specialized in oncological surgery and transplant surgery at Medizinische Hochschule, Hannover, Germany, Memorial Sloan Kettering Cancer Center, New York, USA, MD Anderson Cancer Center, Houston, TX, USA, and laparoscopic surgery in Italy, Spain, and Japan.