Leadership Team

Wheeler Clinic is guided by a diverse and talented team of leaders who are firmly committed to promoting recovery, health and growth at all stages of life.

  • Susan Walkama, LCSW, President and Chief Executive Officer
  • Athena Dellas, MBA, Chief Financial Officer
  • Nicolangelo Scibelli, LCSW, Chief Information Officer
  • Patricia Speicher Werbner, MPA, Chief Human Resources Officer
  • Sabrina Trocchi, Ph.D., MPA, Chief Operating Officer
  • Elisabeth Cannata, Ph.D., Vice President, Community-Based Family Services and Practice Innovation
  • Sandra S. Cohen, MA, CPHQ, Vice President, Quality/Compliance Officer
  • Heidi Joseph, RN, MSN, Vice President of Health Center Operations
  • Kimberly M. Nelson, LCSW, Senior Vice President, Services
  • Todd M. Raymond, Vice President, Facilities
  • Michael F. Russo, Psy.D., Vice President, Education Services
  • John R. Sponauer, MBA, Vice President, Marketing, Communications and Philanthropic Giving
  • Judith Stonger, MA, CPS, CARC, Vice President, Prevention, Wellness and Recovery



Wheeler Leadership News


50th Anniversary Spotlight: Wheeler President and Chief Executive Officer, Susan Walkama, LCSW

Wheeler President and Chief Executive Officer, Susan Walkama, LCSW, exudes a quiet, strong confidence—fueled, in part, by experience and the many forms of inspiration in her life. With warmth, grace, humility and a commitment to achieve the very best outcomes for individuals and families—especially the most vulnerable—Susan guides a team of more than 1,000 at Wheeler in achieving its mission to provide equitable access to innovative care that improves health, recovery and growth at all stages of life.

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Reflections on David Berkowitz, Ph.D.

Recently, we shared the story of David Berkowitz, Ph.D., former executive director of Wheeler Clinic, as part of our 50th Anniversary series. Below are some reflections on David’s life and role as a leader at Wheeler.

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