Dr. Leewen Liu is an internist in Saratoga, California. She received her medical degree from Rush Medical College of Rush University Medical Center and has been in practice for more than 20 years. Dr. Leewen Liu has expertise in treating knee injury, hypertension & high blood pressure, gastroenteritis, among other conditions - see all areas of expertise. Dr. Leewen Liu accepts Medicare, Aetna, Blue Cross, United Healthcare - see other insurance plans accepted.