Wren Keber, Lisa Soroka, and Z. Colette Edwards, WG'84, MD'85


Keber_Wren_Square.jpgWren Keber is a Managing Partner at Cardinal Consulting Group. Mr. Keber’s practice focuses on the development and operations of provider networks and payer strategy for integrated delivery systems, community hospitals, and public organizations. He has particular expertise in Medicare and Medicaid contracting, as well as performance improvement.

Contact Wren at:
[email protected] 

Lisa Soroka
is a founding member of The Marblehead Group, LLC, a healthcare consulting firm with a focus on hospital and physician practice management. Its national and international clients include public, private, and county hospitals/ systems, academic medical centers, physician groups, health plans, and global reinsurers.

Prior to forming The Marblehead Group, Lisa held senior management positions at Children’s Hospital Los Angeles Medical Group, Georgetown University Medical Center, and Kaiser Permanente.

Lisa earned her BS in Public Health from the University of Massachusetts Amherst, and her MHSA from the University of Michigan.

Contact Lisa at: 
[email protected] 


Z. Colette Edwards, MD MBA is the National Medical Director, Associate Health and Well-Being. She provides clinical and operational leadership to optimize the health, well-being, and benefits of Humana’s 52,000 associates. Humana has been a Platinum Award winner in NBGH's "Best Employers for Healthy Lifestyles" recognition program from 2014 - 2020, ranked in the top 10 of “Healthiest 100 Workplaces in America” in 2017 - 2019, and achieved Gold status in the AHA's Workplace Health Achievement Index 2017 – 2021.

With the arrival of COVID-19, Colette is the clinical lead for the associate population related to the development of policies, workflows, associate education, testing, return-to-work protocols, identification of benefits and support needs, and associate experiences like special COVID-19 messaging, a 3-month mindfulness offering, and 4-part gratitude and 5-part guided imagery webinar series. She also leads a Long COVID Workgroup, a multidisciplinary, cross-functional team composed of volunteers from across enterprise focused on designing resources to support and make life easier for those suffering from long COVID or who serve as caregivers to loved ones with the condition.

Dr. Edwards is a gastroenterologist and received a BA from Harvard University, an MD from the Perelman School of Medicine at the University of Pennsylvania, and an MBA from the Wharton School. She completed her GI fellowship at the University of California, San Francisco, has a graduate certificate in health and wellness coaching from the Maryland University of Integrative Health, and is a graduate of the NIH Scholar Program in Translational Health Disparities.

Finally, Colette is the Managing Editor for the Wharton Healthcare Quarterly, has written a McGraw-Hill GI text, is the author of Be Less Stressed, is a contributing writer to Thrive Global, and provides COVID-19 updates and resources as part of the Harvard Alumni/ae Community Helps initiative. Lastly, she is a board member of Bread for the City and an advisory board member for T1D Exchange.

Contact Colette at: 
[email protected]