San Andreas, CA…Meet Dr. Singhal. An expert in cancer. And kindness. Dr. Shiva Singhal is our Cancer Center’s Medical Director, specializing in medical oncology and hematology. She’s also an expert in the type of treatment everyone wants to receive: humankindness. To schedule an appointment with Dr. Singhal, call the Mark Twain Cancer Center in San Andreas at 209.754.9670.