About
Ruiz Ruben MD, a board-certified Internist, provides top-notch medical care to patients in Ontario, CA. As a trusted Doctor, Dr. Ruiz offers a wide range of services, including routine check-ups, diagnosis, and treatment of various medical conditions. His state-of-the-art Medical Laboratory is equipped with the latest technology, ensuring accurate and timely test results. With a focus on preventive care, Dr. Ruiz helps patients maintain optimal health and wellness. Conveniently located at 403 W F St, Ontario, CA 91762, his office is easily accessible and offers a comfortable, welcoming environment. Whether you're seeking routine care or have a specific health concern, Dr. Ruiz and his team are dedicated to providing personalized, compassionate care.