Howard Masuoka is a Gastroenterologist and a Transplant Surgeon in Stanford, California. Dr. Masuoka is highly rated in 16 conditions, according to our data. His top areas of expertise are Nonalcoholic Steatohepatitis (NASH), Visceromegaly, Enlarged Liver, Liver Failure, and Liver Transplant. Dr. Masuoka is currently accepting new patients.