Dr. Guerrero gave me hope when I was suffering with pheochromocytoma. I was born with this and throughout my life I suffered with this disease. I had a team of doctors in Prescott, AZ who fought for me. Finally after much testing I was diagnosed with pheochromocytoma. I was referred to Dr Guerrero. He is compassionate, caring and knew all about my condition. He took every precaution as he prepared me for surgery. He explained the procedure to me. I had full confidence in him and knew he would take great care of me. He removed my left adrenal gland with a full medical team of caring staff. Before surgery I was on several prescriptions and after I was taken of all the meds. Today I am living a very happy and healthy life. I now know what it feels like not to have adrenaline rush through my body. I now know what calm feels like.