Diarra Lamar is a Partner and Leader of PwC’s Healthcare Services Deals Strategy practice in the New York office. Diarra is a physician with almost two decades of healthcare experience, specializing in inorganic growth and innovation strategy. He has supported principal investors, large health systems, payers, and growth-phase startups on various aspects of growth strategy.
Prior to PwC, Diarra held leadership roles including Principal at the Boston Consulting Group, Director of Innovation and New Products at Novartis, Director of Strategic Initiatives at Horizon Blue Cross Blue Shield of New Jersey, and Senior Engagement Manager at McKinsey & Company.
Select Project Experience:
Diarra earned an A.B., magna cum laude, in Cognitive Neurosciences, an M.D., and an MBA from Harvard University.
It is with profound sadness that we share the passing of Cal LaRoche, a brilliant and dedicated advisor and champion of the Ron Brown Scholar Program, who left us on Wednesday, April 9th, 2025.
Born in New York in January 1946, Cal graduated from Central State University in Ohio, where he joined the Eta Gamma Chapter of Omega Psi Phi Fraternity. His career spanned decades of leadership and innovation, beginning at the National Security Agency and continuing through key roles at IBM, SkyTel Communications, and The Orkand Corporation.
A visionary entrepreneur, Cal later co-founded DC Ventures and Associates.
His commitment to service was unwavering. Cal chaired the Boards of Trustees at Suburban Hospital in Bethesda and Norwood School and served with distinction for 15 years on the Advisory Board of the Ron Brown Scholar Program. His leadership extended to the Beta Mu, Boulé Foundation Board, where he served as Chair, and to Patients For Affordable Drugs, where he was a founding board member and Treasurer.
An avid golfer and advocate for equity in the sport, Cal co-founded the Pro-Duffer/Carter Foundation Scholarship to promote diversity in golf. A long-time member of TPC Potomac at Avenel Farm, he was as passionate about creating opportunity as he was about the game itself.
Cal’s legacy is carried on by his beloved family: his mother, Lucille “Gloria” David; his wife, Esperanza, and their sons, CJ and Ethan; his former wife, Cheryl LaRoche; their daughters, Gina LaRoche, Renee LaRoche-Morris, and Danielle LaRoche; six grandchildren; and his siblings. His wisdom, warmth, and unwavering belief in the potential of young people will remain an enduring part of the Ron Brown Scholar community.
We are forever grateful for Cal’s enduring support, leadership, and love. He leaves behind a legacy of excellence, generosity, and deep humanity. He will be deeply missed.
