Executive Leadership Team | Miami Cancer Institute | Baptist Health South Florida
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Executive Leadership

Michael J. Zinner, M.D.

Michael J. Zinner, M.D.
Founding CEO and Executive Medical Director

Under the expert leadership of Michael J. Zinner, M.D., a renowned cancer surgeon and researcher, Miami Cancer Institute's vision of bringing world-class cancer care to South Florida as a leading, hybrid academic-community cancer center takes shape. An expert in pancreatic-hepatobiliary diseases, Dr. Zinner, a Miami native, has earned worldwide recognition for his clinical accomplishments, his contributions to cancer treatment and research and his mentorship of students, physicians and researchers—an effort for which he takes tremendous pride.

Dr. Zinner comes to the Institute from Dana-Farber/Brigham and Women's Cancer Center in Boston, where he served as clinical director and surgeon-in-chief at the Brigham and Women's Hospital. He is also co-founder of the Gastrointestinal Cancer Center at Dana-Farber Cancer Institute. During his time in Boston, Dr. Zinner served as the Moseley Professor of Surgery at Harvard Medical School and founded Harvard's Center for Surgery and Public Health. The author of more than 230 academic papers, he serves on the editorial boards of the Annals of Surgery, Journal of Gastrointestinal Surgery and the Journal of the American College of Surgeons. From 2008 to 2010, Dr. Zinner was chairman of the Board of Governors of the American College of Surgeons and is now a vice chairman of the College's Board of Regents. Additionally, he chairs the College's Health Policy and Advocacy Committee.

Dr. Zinner received his medical degree from the University of Florida and completed his surgical residency at the Johns Hopkins Hospital in Baltimore, Md.

Leonard Kalman, M.D.

Leonard Kalman, M.D.
Deputy Medical Director and Chief Clinical Officer

As deputy medical director and chief clinical officer, Dr. LAs deputy medical director and chief clinical officer, Dr. Leonard Kalman plays a critical role in supporting the overall mission and vision of Miami Cancer Institute and in defining its clinical components. He is involved in the recruitment of faculty and staff, and works with the operational team to create a multidisciplinary model of care combined with an unsurpassed patient experience.

Following the completion of his medical oncology fellowship at Memorial Sloan Kettering Cancer Center in New York City in 1982, Dr. Kalman became a practicing community medical oncologist, and joined the staffs of Baptist Hospital and South Miami Hospital. As the practice grew under his leadership, he eventually served as chairman of the Board of Managers of what became Advanced Medical Specialties (AMS), a large, diversified oncology practice in Miami-Dade and Monroe counties. As chairman, he led AMS' strategic planning, quality and growth initiatives. In December 2014, the physicians and employees of AMS joined Baptist Health as the founding oncologists of Miami Cancer Institute.

Dr. Kalman also serves on the Board of Managers of Baptist Health Quality Network, a collaboration between Baptist Health and the finest doctors throughout the region. The Network is designed to improve access to quality healthcare throughout South Florida.

Michele Ryder, R.N.

Michele Ryder, R.N.
Chief Operating Officer and Chief Nursing Officer

As chief operating officer and chief nursing officer, Michele Ryder, R.N., provides leadership and support for Miami Cancer Institute's business and nursing operations along the patient care continuum, including the infusion suites, multidisciplinary clinics, radiation oncology and ancillary services. Ms. Ryder's extensive professional background encompasses over 37 years in both patient care and executive positions. She is a clinical expert in hospital operations and has been responsible for the growth of the renowned neuroscience and surgical programs at Baptist Hospital of Miami, where she began her career 29 years ago in surgery and the post-anesthesia care unit.

A member of the American College of Healthcare Executives and South Florida Organization of Healthcare Executives, Ms. Ryder also sits on the board of Living Hope Haiti. In this capacity, she has organized more than 24 Baptist Health surgical trips to the country, which provide life-changing surgery for Haitian residents in need.

Ms. Ryder holds master's degrees in nursing and healthcare administration from the University of St. Francis.

Minesh Mehta, M.D.

Minesh Mehta, M.D.
Deputy Director and Chief of Radiation Oncology

As deputy director and chief of radiation oncology, Minesh Mehta, M.D., a world-renowned expert in radiation oncology, proton therapy and cancer research, positions Miami Cancer Institute's proton therapy center—the only one of its kind in South Florida and one of fewer than two dozen in the United States—as the region's top destination for this leading-edge treatment. In March 2015, Baptist Health South Florida signed an agreement with IBA, the world's leading provider of proton therapy solutions for the treatment of cancer, to bring the advanced therapy to the Cancer Institute.

Dr. Mehta joins Baptist Health from the University of Maryland School of Medicine, where he served as medical director of the Maryland Proton Treatment Center in Baltimore and as the university's associate director of clinical research in the Department of Radiation Oncology. He previously held major academic, research and administrative leadership positions at Northwestern University in Chicago and the University of Wisconsin in Madison. At the Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Dr. Mehta was co-director of the Radiation Oncology Residency Training Program, mentoring many young physicians who have gone on to become prominent leaders in the field. He has designed and led numerous national and international clinical studies, receiving National Cancer Institute and National Institutes of Health grants and winning several honors for his research in brain and central nervous system tumors.

Dr. Mehta graduated with the highest honors from the University of Zambia School of Medicine. He completed his residency at the University of Wisconsin, where he'd go on to head its brain tumor program for more than 15 years.

Miguel Villalona Calero M.D.

Miguel Villalona Calero, M.D.
Deputy Director and Chief Scientific Officer

As deputy director and chief scientific officer, Miguel Villalona-Calero, M.D., an internationally renowned oncology researcher, leads the scientific pursuits of Miami Cancer Institute, including its groundbreaking clinical trials and translational research. A native of the Dominican Republic, Dr. Villalona was previously the Dorothy M. Davies Chair in Cancer Research, tenured professor and director of the Division of Medical Oncology at The Ohio State University Comprehensive Cancer Center/Arthur G. James Cancer Hospital and Richard J. Solove Research Institute. He has participated in 20 federal grants, 11 as principal investigator, and has been the principal investigator or co-investigator on a wide variety of cancer research trials funded by prestigious organizations such as the National Cancer Institute and National Institutes of Health. He also serves on the National Cancer Institute's Clinical Trials Advisory Committee.

Dr. Villalona received his medical degree at Universidad Nacional Pedro Henriquez Urena, Santo Domingo, Dominican Republic. He went on to complete fellowships at the University of Minnesota Hospitals & Clinics in Minneapolis, Roswell Park Cancer Institute in Buffalo, the Institute for Drug Development, University of Texas Health Sciences Center at San Antonio, and New York University's Robert Wagner Graduate School of Public Service.

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