Joy Hennessy advises health systems, health plans, physician groups, group purchasing organizations, and other health care entities on an array of legal matters and transactions.
Clients rely on Joy’s strategic planning experience and broad understanding of the multifaceted health care business arena. They turn to her to help them resolve challenges, stay compliant, and grow or reorganize their companies through mergers, acquisitions and joint ventures. In addition to transactions, her work includes issues related to physician arrangements with hospitals, managed care arrangements, and value-based care agreements, as well as advising on compliance with federal anti-kickback and data privacy laws and state insurance regulations. In all aspects of her work, Joy helps health care clients forge relationships with their vendors and strategic partners in the industry.
With more than 20 years of experience exclusively in the health care industry, Joy serves as a strategic negotiator and collaborator. She has worked both inside the health care system and as outside counsel, helping her understand the nuances and the big picture of her clients’ business to guide them toward success. Her skill as a problem-solver who can succinctly address issues is key to her ability to get results. As one of her clients recently noted, “Joy is a strategic partner who brings insight and attention to detail to all of our deals. She is our go-to deal attorney for health care transactions.”
Professional
- American Bar Association
- American Health Lawyers Association
- Member, Payers, Plans, and Managed Care Practice Group
- Member, Health Information and Technology Practice Group
- Missouri Society of Health Care Attorneys
- St. Louis Area Health Lawyers Association
- State Bar of California
- The Missouri Bar
Community
- Launch St. Louis, Inc., Director, Secretary, 2010-2013
- Healthcare Businesswomen’s Association, Programs Director and Board Member
- Listed in “Chambers USA” for Health Care in Missouri, 2022-2024 (by Chambers & Partners)
- Listed in The Best Lawyers in America, (by BL Rankings) 2016-2025
- 2021 Women’s Justice Award winner (by Missouri Lawyers Media)
- “Next steps under CMS open payments”
Thompson Coburn Health Law Checkup Blog, April 2014 - “Insurance Holding Company Laws: What providers need to know as they dive into insurance market waters”
Thompson Coburn Health Law Checkup Blog June 2015
- Panelist, “Accountable Care Organizations: Defining ACOs & Provider Impact”
a Healthcare Businesswomen’s Association, St. Louis Chapter Event, February 2011 - “Physician Recruitment Arrangements: A Hospital Perspective”
Los Angeles County Bar Association’s 2nd Annual Healthcare Law Compliance Symposium, September 2005 - “Regulation of Access to Special Categories of Health Care Records”
Confidentiality of Medical Records in California Seminar, March 2003
I’m a mother to twins, so spending time with my family is my first priority. I also enjoy traveling and baking.