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Executive Leadership Council 2023

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Catherine Dimou, MD

Midwest Market Medical Executive, Cigna Healthcare

Dr. Catherine Dimou is the Midwest Market Medical Executive for Cigna Healthcare. She provides medical leadership for the Midwest Market. Dr. Dimou is responsible for supporting physician and hospital collaboration, new business development, client retention, as well as, the Midwest market’s strategy and financial planning. As the leader of the Midwest clinical team, she helps to identify and implement solutions to improve health outcomes for Cigna customers while delivering value for Cigna clients. 


Based in Chicago, Dr. Dimou joined Cigna after many years at Rush University Medical Center where she held multiple leadership positions including Associate Dean of Medical Services, Associate Chief Medical Officer of Clinical Services, Medical Staff President, and Chief Medical Officer of Rush Health. 


Dr. Dimou continues her clinical practice as a part time hospitalist at Rush University Medical Center. Her teaching focus is on integrated delivery systems and physician leadership. Dr. Dimou completed medical school and her internal medicine residency at Rush.


Dr. Dimou is an Associate Professor at Rush University Medical College and has spoken widely on Covid 19 and vaccine hesitancy.

2022 All In Committees

Programming and Education

Juana Ballesteros

Janet Conneely 

Benjamin Ewell 

Joseph Harrington 

Cristal Gary

Keith Graff

John Koenigsknecht

Scott Sarran

Liz Simpkin 

Babs Waldman, MD

Stephanie Willding

Marketing and Communication 

Shiela Biggs

Tina Chatalas

Michelle Rivas

Katie Ryan 

Adam Seidler 

Emily Van Camp  

Fundraising and Engagement

Rachelle Bennett

Jim Berkhout

Mary Harrington

Brad Hunter

Pam Hutcherson

Katherine Petrovich

Meghan Phillipp

Arshia Wajid

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