Dr. Castillo received his undergraduate degree from The University of Puerto Rico and then went to medical school at the Autonomous University of Guadalajara in Jalisco, Mexico. He finished medical school at Ponce Medical School in Puerto Rico. He received his medical training at the Damas Hospital in Ponce, Puerto Rico, and in 2009, he was Board Certified by the American Board of Internal Medicine (ABIM).

He specializes in clinical expertise to the diagnosis, treatment, and compassionate care of adults across the spectrum from health to complex illness. Also, specialize in health promotion and disease prevention. He is accepting new patients.

DR. CASITLLLO TREAT ALL ADULT MEDICAL CONDITIONS SUCH AS DIABETES, HYPERTENSION, HIGH CHOLESTEROL, HEART CONDITIONS, THYROID, OSTEOPOROSIS, COPD, ASTHMA, WELLNESS AND ANNUAL EXAM, ACUTE AND CHRONIC PAIN, RESPIRATORY INFECTIONS, NEUROLOGICAL CONDITIONS, GASTROINTESTINAL CONDITIONS, OBESITY, AND MANY OTHERS.