Dr. Mercado philosophy since founding Eterna MD in 2006 is the same as when he began his medical training at the age of 16: to help patients on the inside as well as the outside. Dr. Mercado’s procedures work on different parts of the body but have one thing in common: to treat the underlying cause in addition to the condition. Patients see a difference at Eterna MD with effective treatments and results that are the culmination of decades of Dr. Mercado’s experience and innovation.