Dr. Karen D. Lockwood (Lamb) is an internist in Ventura, California and is affiliated with multiple hospitals in the area, including Corewell Health William Beaumont University Hospital and Kaiser Permanente Woodland Hills Medical Center. She received her medical degree from University of Oklahoma College of Medicine and has been in practice for more than 20 years. Dr. Karen D. Lockwood (Lamb) accepts Medicare, Kaiser - see other insurance plans accepted.