Mrs. Mark Horowitz

Kaiser Permanente

Contact Details

Kaiser Permanente


Mark Horowitz is senior manager, National Fraud Control Unit, within Kaiser Permanente’s National Compliance, Ethics & Integrity Office (NCO).

 In his current role, Mark is responsible for identifying FWA related to Part D. This works includes opioid overprescribing and false claims related to pharmacy. Mark routinely reports incidents of fraud to regulatory agencies and shares information through established healthcare information sharing platforms.

 He partners with Kaiser Permanente’s National Special Investigations Unit (NSIU) to assist with prescription drug diversion cases. He also conducts continuing medical education training for Kaiser Permanente providers.

Mark joined Kaiser Permanente in 1989 and worked in pharmacy operations for more than 25 years as a pharmacy manager, pharmacy supervisor, pharmacist, pharmacy intern, inventory control assistant, and pharmacy assistant.

Mark later worked in Pharmacy Audit and Compliance, where he managed the Southern California team and assisted with investigations related to internal pharmacy drug diversion, Pyxis® diversion, glucose test strip diversion, and internal cash diversion. He also worked in Pharmacy Informatics as a member of the Southern California Pharmacy KP HealthConnect deployment team.

Mark received a Bachelor of Arts in Economics from the University of California, Irvine, and a Bachelor of Science in Pharmacy from Arnold and Marie Schwartz College of Pharmacy, Long Island University.

He is a registered pharmacist in California, and is the President of the California Chapter of National Association of Drug Diversion Investigators. Mark is also a member of the California Society of Health System Pharmacists.