Sienna Cashin, 03/02/2026

This week, our chapter was visited by OU alumna and former chapter member Sienna Cashin (‘13). Since graduating with her Bachelor of Science in Journalism-Strategic Communications, Sienna has worked her way up in the world of health communication and now serves as Cardinal Health’s senior marketing manager. Sienna’s main focus at Cardinal is with the company’s patient support program, Sonexus. Sienna gave us a close look at the paid and owned media work she does every day, including customer voice surveys, programmatic advertising and conference work. Sienna also explained to us all that her own personal health journey is what led her to work in health communication, and that improving customer experience is a large part of her career, because she’s experienced Cardinal as both an employee and a customer. 

During her presentation, Sienna also provided us with her own perspective on what it looks like to work in an agency versus a corporate environment. Sienna didn’t compare one experience as better or worse, just that they each have different expectations. Along with her insights into agency versus corporate life, Sienna also provided us with some of her own recommendations for professional development and early career development, which are listed below.

Sienna’s Recommendations:

  • Show up in person in a big way.
  • Numbers and words are your friends.
  • Never stop adding to your toolkit.
  • Think outside the box and take risks.
  • Be your biggest advocate.
  • Follow your heart.

You can connect with Sienna on LinkedIn here.

Ella Neighborgall is majoring in Communication Studies and minoring in PR & Advertising. You can connect with Ella here.

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