Dr. Julia Vaizer will succeed Billows as the director of medical services for INDYCAR and IMS, becoming the first female medical chief in the history of the sanctioning body and the track. Vaizer, who has served as the assistant medical director for INDYCAR and IMS since 2021, also served as acting medical director when Billows was on a short medical leave of absence earlier this spring. He served as an AMR Safety Team physician and deputy medical director and became IMS director of medical services in 2006. Vaizer has worked under Billows with the AMR Safety Team since 2020 and became the first person to complete the IU School of Medicine Motorsports Fellowship in July 2021.

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