Ken Cosmer has been with Agoura West-Valley Pediatric Medical Group since 1988. He was born and raised in Chicago and graduated with a degree in Pharmacy from Drake University in Des Moines, Iowa. He attended the Chicago Medical School and then moved to Southern California to do his pediatric residency at Children's Hospital of Los Angeles. Ken has 3 children, Jeremy who is a Respiratory Therapist at Northwestern Memorial Hospital in Chicago; Traci, who is a senior at Cal State Chanel Islands and Josh who is a sophomore at San Jose State with a major in kinesiology. Ken's wife Sheryl is a preschool teacher at Valley Beth Shalom ECC in Encino. Ken and his family live in Agoura Hills and he enjoys reading, going to the movies, bowling, golf, and fishing.

Medical School
  • Finch University of Health Sciences/Chicago Medical School, North Chicago, IL
  • Children's Hospital Los Angeles, Los Angeles, CA
  • Children's Hospital Los Angeles, Los Angeles, CA
  • English


Agoura-West Valley Pediatrics
7230 Medical Center Drive
Suite 402
West Hills, CA 91307
(818) 340-3822
(818) 340-8039
Agoura-West Valley Pediatrics
29525 Canwood Street
Suite 214
Agoura Hills, CA 91301
(818) 706-1966
(818) 706-9857


  • Pediatrics (Board Certified)
Clinical Interests
  • Conjunctivitis
  • Attention Deficit Hyperactivity Disorder
  • Acute Sinusitis
  • Fever


Insurances Accepted
  • Aetna PPO/POS/EPO
  • Anthem Blue Cross PPO/POS/EPO
  • Blue Shield PPO/POS/EPO
  • Cigna PPO/POS/EPO
  • Covered CA Anthem BC PPO/EPO
  • Covered CA Blue Shield PPO/EPO
  • Covered CA Health Net PPO
  • First Health Network PPO/EPO
  • GWH-CIGNA (Great West) PPO, POS
  • Health Net PPO/EPO/POS
  • TriCare/TriWest PPO
  • United Healthcare PPO/POS/EPO
Insurance Medical Groups
  • Motion Picture