Dr. To is a licensed Internal Medicine in CA. Graduated in 1998. Medical degree obtained from Chicago Medical School - Rosalind Franklin University. Completed residency training at LAC+USC Medical Center. Currently practices at GROVE INTERNAL MEDICINE (GROVE INTERNAL MEDICINE), located at 8283 Grove Ave., Rancho Cucamonga, CA 91730. Dr. To specializes in treating complex conditions such as: hypertension, diabetes, high cholesterol, COPD, congestive heart failure, osteoporosis and geriatric care.. In addition to English, Dr. To speaks Mandarin and Cantonese.