The estimated net worth of Rita A. Karachun is at least $4.75 million as of May 4th, 2023. Dr. Karachun owns 45,710 shares of Merck & Co., Inc. stock worth more than $4,752,012 as of September 28th. This net worth estimate does not reflect any other investments that Dr. Karachun may own. Learn More about Rita A. Karachun's net worth.