Dr. Stephen E. Cummings is a psychiatrist in Redwood City, California. He received his medical degree from University of California, Davis, School of Medicine and has been in practice for more than 20 years. Dr. Stephen E. Cummings has expertise in treating bipolar disorder, depression, anxiety disorders, among other conditions - see all areas of expertise. Dr. Stephen E. Cummings accepts Medicare, Aetna, Humana, Blue Cross, United Healthcare - see other insurance plans accepted.