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Our Upper School program provides academic and psychosocial learning for students in grades 6 through 12, differentiated to meet the developmental needs of our middle school and high school students. In the first year of the Upper School, specific emphasis is placed on the transition to middle school and the development of executive functioning skills including problem solving and social-emotional regulation in order to prepare students for increased academic and social demands. As students progress through High School, greater emphasis is placed on domain-specific and experiential learning, self-awareness, self-advocacy, as well as transition and future planning. These skills are tailored to each individual students’ strengths via a combination of collaborative learning groups and individual sessions. Our full-service transitional program for grades 6-12, titled Cloverleaf, works in collaboration with our Talent Development and College Counseling departments to provide a real-world context for experiential learning and post-secondary planning.


Students are provided with appropriate instructional levels for each academic subject based on assessments in each area, rather than on the traditional “grade level” followed in traditional schools. Academic classes meet three times a week for seminar and once a week for individual instruction, which allows for a true personalized learning plan that accelerates or modifies the pace of the curriculum to meet the specific needs of the student. This allows students to fill in learning gaps or pursue special interests while raising the achievement bar. 

  • Mark McFadden, President
    Mark McFadden is Co-Managing Partner of CCMP Capital, a private equity firm focused on making investments in Consumer and Industrial companies. CCMP focuses on generating strong returns for its investors through the operational transformation and growth of its portfolio companies. Mark focuses on investments in the industrial sector, currently sitting on the board of CCMP portfolio companies BGIS, a leading provider of integrated facilities management services and Hayward Industries (NYSE: HAYW), a leading global manufacturer of pool equipment. Mark’s prior CCMP portfolio investments include Generac Power Systems (NYSE: GNRC), Ecovyst (NYSE: ECVT), and Milacron (NYSE: MCRN). Mark joined CCMP in 2002, and worked in CCMP’s London office from 2004 to 2006. Prior to joining CCMP, Mark worked in investment banking with Credit Suisse and Bowles Hollowell Conner. Mark holds a B.B.A. in Finance and a B.A. in History from the College of William and Mary. Mark and his wife Caton are proud parents of three children, including their son Cole who has attended Quad Prep since 2016.
  • Kimberly Busi, M.D., Founder and Head of School (Ex-Officio)
    Kim Busi is the Founder and Head of School at The Quad Preparatory School. For over a decade, Kim has stewarded Quad Prep’s growth and innovated a new model in which twice-exceptional students learn and thrive beyond the limitations of a traditional school environment. She is widely recognized as a national leader in the field of 2e education. A highly-regarded psychiatrist and a former Clinical Assistant Professor of Psychiatry at the NYU School of Medicine, Kim’s medical background and experience as an educator have informed the fully integrated academic and clinical model at Quad Prep. Dr. Busi received her medical degree from the Brown University School of Medicine, completed a year’s training in pediatrics at the New York Hospital-Weill Medical Center, and finished her residency training in psychiatry at the NYU School of Medicine. At NYU, Dr. Busi designed curriculum, taught, and supervised residents. She served on the curriculum committee for the Department of Psychiatry, and as the Director of Education for the NYU/Bellevue Program for Survivors of Torture. She is an endlessly fascinated fiction reader and the mother of two wonderful boys. Kim is most proud of the countless stories of joyful learning and transformation our Quad Prep students experience each day.
  • Marcus Mabry, Vice President
    Marcus Mabry is an award-winning journalist and author. Since 2016, he has been the Vice President of Global Programming at CNN Digital, where he leads the teams that decide what news goes on's homepages, the CNN mobile app and on social platforms like Facebook and Twitter. Before joining CNN, Marcus spent 8 years at The New York Times as a business editor, editor-at-large and digital anchor and editor. Marcus has also worked at Twitter as the editor of Twitter Moments and at Newsweek, where he spent 19 years as an editor, foreign correspondent in Paris and Johannesburg, and State Department correspondent in Washington. Marcus is the author of White Bucks and Black-eyed Peas: Coming of Age Black in White America and Twice as Good: Condoleezza Rice and Her Path to Power. Marcus serves on the board of The Lawrenceville School and the International Schools Services. He is a member of the Council on Foreign Relations, the National Association of Black Journalists, The LGBTQ Journalists Association and the Overseas Press Club. Marcus and his partner Christopher are the parents of twins Grayson and Miles, an Upper School student at Quad Prep.
  • Marilyn Kline Falk, M.D., Secretary
    Marilyn Kline Falk received her medical degree from the University of Maryland and completed residency training in Internal Medicine and Specialist Training in Pulmonary and Critical Care Medicine at the NYU School of Medicine. She is currently an Attending Physician in Pulmonary and Critical Care Medicine at the Manhattan VA Hospital, with an academic appointment at the NYU Langone School of Medicine. As part of her role in the Surgical Intensive Care Unit, Dr. Kline leads a multidisciplinary team, caring for and coordinating care for very sick veterans in a busy ICU. Her administrative work includes serving as the Director of Nutritional Support Team, leading “best practice” groups, guiding quality assurance measures, and coordinating educational activities for nurses, medical students, physician assistant students, nursing students, physician assistants, interns, residents, and fellows As the mother of 3 young boys, two of whom are twice-exceptional, she is also an special needs advocate.
  • Alan Carr
    Bio Coming Soon.
  • Ray Chan
    Ray Chan is a multi-asset investor who has led global investment teams across complex regulatory and investing environments. He is currently the Co-Head of Strategy and Rates at Liberty Mutual Investments. Ray also led an investment team at Blackstone Group where he focused for three years on liquid alternative investing. Prior to Blackstone, Ray spent 15 years at Goldman Sachs, where he helped build the multi-asset investing business, was a member of the multi-asset investment committee, and was the lead portfolio manager on multiple multi-asset investment mandates. Ray began his career as a management consultant at Oliver, Wyman. He holds a A.B. From Harvard college in Honors Biochemistry (magna cum laude), an MBA from the Wharton School of Business and graduated from Milton Academy in Massachusetts. Ray and his wife Lisa Mahle are proud parents of two children, including their son, Theo, who has attended Quad Prep since 2022.
  • Adam Falk
    Adam F. Falk is President of the Alfred P. Sloan Foundation, where he has been since January 2018. Before joining the Foundation, Falk served as President of Williams College in Williamstown, Massachusetts. He came to Williams from the Johns Hopkins University, where he joined the physics faculty in 1994. From 2006 to 2010, he served as the James B. Knapp Dean of the JHU’s Krieger School of Arts and Sciences, following service as Dean of the Faculty. A theoretical physicist, Falk is the author of more than 50 peer-reviewed papers. He earned a B.S. from the University of North Carolina in 1987 and a Ph.D. from Harvard University in 1991. Falk is a trustee of the North Carolina School of Science and Mathematics, and a past trustee of the Sterling and Francine Clark Art Institute and the Massachusetts Museum of Contemporary Art. He is a Fellow of the American Physical Society, a Member of the American Academy of Arts and Sciences, and an Honorary Fellow of Exeter College, Oxford University. His three beloved nephews attend Quad Prep.
  • Stephanie Hodor
    Bio Coming Soon
  • Paul Levinsohn
    Paul Levinsohn is the Co-Founder of New York City Regional Center, a firm that provides construction financing across a broad spectrum of infrastructure and real estate projects in New York City. Since its founding in 2008, much of the firm’s financing targets projects in underserved areas in need of long-term economic growth. Examples include the installation of high-speed Wi-Fi in the city’s subway stations, the construction of Fresh Direct’s new distribution center in the Bronx, the repurposing of cargo facilities at JFK Airport, and the redevelopment of the Brooklyn Navy Yard. In 2016, the firm expanded into new market tax credit financing and has helped fund the construction of new charter schools in Harlem, Brooklyn and the Bronx, the redevelopment of community healthcare and athletic facilities throughout the city, as well as construction of the National Urban League’s new headquarters in Harlem. In addition to his background in construction financing, Paul has invested in and overseen various private equity transactions over the past twenty-five years. His career also includes public service as a government attorney, federal court judicial law clerk, and a high school teacher. Paul received his BA, MA (Political Science) and JD from Duke University. While in law school, Mr. Levinsohn was a member of the school’s Law Review, the Duke Law Journal. Paul previously was a member of the Board of Trustees of Duke University. He is currently a Trustee of the Selfhelp Community Services Foundation, a New York City not-for-profit dedicated to maintaining the independence and dignity of seniors and at-risk populations. Paul and his wife Courtney are parents of two boys. The youngest, Brady, has attended the Lower School at Quad Prep since 2021.
  • David Orr
    Dr. David Orr, MDiv, PhD, is a hospice chaplain providing end of life spiritual care to patients and their families in New York City. He focuses his practice on the most complex end of life situations, having completed advanced training in hospice for pediatric and mentally ill patients. David graduated from Harvard College, magna cum laude, where he concentrated in Social Studies. He went on to complete his Master of Divinity degree, with highest honors, at Union Theological Seminary with a concentration in religious ethics. He continued his doctoral studies in religious ethics at Union Theological Seminary and Columbia University where he was advised by Professor Gary Dorrien. David defended his dissertation on Reinhold Niebuhr’s political theology and received his PhD in 2016. David serves as a board member and board chairman emeritus of All Star Code, a youth development organization. He is chairman of the board of Chances for Children, a mental health provider specializing in family therapy for parents and young children living in poverty. David is the founding chairman of the National Development Advisory Council for the Phillips Brooks House Association at Harvard. He serves as a trustee of Bank Street College of Education. David lives in New York City with his husband, Brant Wong, and his two children.
  • Jason Pike
    Jason Pike is the Head of Capital Markets of SVPGlobal, a global investment firm focusing on special situations and private equity opportunities. Prior to joining SVPGlobal in 2018, Jason spent six years as a Managing Director at Charlesbank Capital Partners and was involved in private equity investments in addition to overseeing capital markets activity for the firm. Prior to that, Jason spent over four years at Eos Partners and prior to that, Jason worked at Citigroup, Generation Partners and began his career within the Investment Banking Division at Goldman Sachs in 1998. Jason received his BS in Economics in 1998 and his MBA in 2005 from the Wharton School at the University of Pennsylvania. Jason and his wife Julie are parents of two children, including their son, Ethan, who has attended QuadPrep since 2021.
  • Scott Reisinger
    Scott Reisinger is an historian, school leader, and minister. Scott served as the Head of School for Trevor Day School from July 2014 until June 2023. Prior to that, he served as Head of Bancroft School, as Head of the Lower School and Assistant Head of School at Greens Farms Academy, and as Director of Admissions and Financial Aid at the Harley School. He has been a member of the Board of Directors at the Independent School Admission Association of Greater New York and the Guild of Independent Schools of New York City, where he served as Vice President and President. He previously completed a three-year term as Board President of the Association of Independent Schools of New England (AISNE), where he served as a trustee for eight years. He also served for six years as a member of the New England Association of Schools and Colleges Commission on Independent Schools. He is currently a member of the NYSAIS Commission on Accreditation, and has chaired numerous school visiting committees. Scott is a noted writer and speaker on the subject of education.


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