Geoff Green


Chief Executive Officer

Geoff Green has been with Longeveron since 2016, and is a veteran of the life sciences and drug development industry.  A versatile executive with a career spanning 25 years in both public and private companies, Mr. Green has held a variety of leadership roles throughout his time in the industry.  Prior to joining Longeveron, he was VP of Operations at Partikula, VP, Business Development & Clinical Affairs at Accu-Break Pharmaceuticals, President and Acting CEO of DOR BioPharma (now Soligenix (NAS: SNGX)), VP of Business Development & Operations at Heart Genomics, and Director of Clinical Affairs at Innovative Drug Delivery Systems. Early in his career he spent several years managing oncology clinical trials at Memorial Sloan-Kettering Cancer Center, and as a research associate at Paramount Capital, where he managed clinical trials for several portfolio companies. Mr. Green received a B.A. in biology from Kenyon College, and an M.B.A. from Barry University’s Andreas School of Business.

Joshua M. Hare MD, FACC, FAHA,

Co-Founder, Chief Science Officer and Chairman

Dr. Hare co-founded Longeveron in 2014 and serves as Chairman of the Board of Directors, and Chief Science Officer. Dr. Hare is a double board-certified cardiologist (Cardiology and Advanced Heart Failure and Transplantation) and is the founding director of the Interdisciplinary Stem Cell Institute at the University of Miami’s Miller School of Medicine. He has obtained in excess of $25 Million in funding from the National Institutes of Health over the past 15 years to support basic research of cell therapy strategies. He is also a recipient of the Paul Beeson Physician Faculty Scholar in Aging Research Award, and is an elected member of the American Association of Physicians, The American Society for Clinical Investigation, and is an elected Fellow of the American Heart Association. Dr. Hare has also served in numerous leadership roles at the American Heart Association and at the Center for Scientific Review of the National Institutes of Health. Dr. Hare is also a co-founder of Vestion, Inc., and Heart Genomics, LLC, companies that hold cardio-related intellectual property. He received a BA from the University of Pennsylvania, and his MD from The Johns Hopkins University School of Medicine, and completed fellowships at Johns Hopkins and Brigham and Women’s Hospital, and was a Research Fellow at Harvard Medical School.

James Clavijo


Chief Financial Officer

James Clavijo joined Longeveron in 2019. He has over 25 years of experience in executive, finance and accounting activities, including experience as a Chief Financial Officer for several pharmaceutical, healthcare, medical device and manufacturing companies. Mr. Clavijo’s experience has included building, leading and advising companies with strategic plans for pharmaceutical commercialization and manufacturing, negotiating licensing and drug development agreements, as well as advising companies with complex restructurings, mergers and acquisitions, capital market transactions, and system implementations. During 2018, Mr. Clavijo served as the Chief Financial Officer for Aeterna Zentaris (NASDAQ: AEZS). Prior to this, Mr. Clavijo served for two years as the Chief Financial Officer for Tri-source Pharma, a pharmaceutical company focused on procuring pharmaceutical products facing supply issues and supplying pharmaceutical products to veterinary markets. Since 2009, Mr. Clavijo, has also served as founder and principal of Barcelona Capital Partners, a consulting firm that provided Chief Financial Officer services, that includes the preparation of regulatory filings with the Securities and Exchange Commission. Previously, Mr. Clavijo served for five years as the Chief Accounting Officer at Soligenix (NASDAQ: SNGX), a public biopharmaceutical company. In addition, Mr. Clavijo worked for Deloitte & Touche and was an Officer in the U.S. Army, serving for 13 years in active and reserve duty. Mr. Clavijo was licensed as a CPA in Florida from 2000-2011. He was licensed in Florida as a real estate/business agent since 2013-2021. Mr. Clavijo received a BA in Chemistry (PreMed) from the University of Florida, a BA in Accounting from the University of Nebraska, and a Masters in Accounting from Florida International University.


Paul Lehr JD

International Executive Director, General Counsel and Secretary

Paul Lehr joined Longeveron in 2016 and serves as General Counsel and Corporate Secretary as well as its International Executive Director, overseeing Longeveron’s international efforts and programs.  After earning his BA from Brown University, and his JD from University of Florida College of Law, Mr. Lehr served as a law clerk for a United States Federal Judge and practiced law for 5 years with experience in healthcare and business transactions and litigation at a leading Miami law firm.  Over the past 20 years, Mr. Lehr has held senior legal and executive positions in corporate, non-profit, and research settings.  Mr. Lehr co-founded and serves as the CEO of Heart Genomics, LLC, a molecular diagnostics company, and thereafter focused his efforts in the cardiac rehabilitation field as President of a non-profit research foundation.  With this research serving as the foundation of the for-profit arm of the cardiac rehabilitation program, Mr. Lehr negotiated a master franchise agreement with a leading Indian healthcare operator with 100+ facilities across India and the Middle East, and then co-lead negotiations with the Centers for Medicare & Medicaid Services to successfully secure reimbursement of their cardiac rehabilitation program. 


Lisa McClain-Moss

Vice President,


Lisa McClain-Moss joined Longeveron in 2017. She has more than 20 years of experience in the cell and gene therapy space including GMP cleanroom operations. During this time she was involved in the development, manufacturing and scale up of biopharmaceutical products including viral vectors such as vaccinia and retroviruses, H5N1 influenza seed stock for the WHO as well as seed stocks for multiple strains of influenza, rAAV, monoclonal antibodies and cell and tissue expansion and banking. From September 2007 to August 2017 she served as the Director of Manufacturing at Cognate Bioservices. While at Cognate she led manufacturing operations in a GMP environment as well as implementation of new client processes from technology transfer to finished final product. From March 1999 to August 2007, she served at St. Jude Children’s Research Hospital starting with the production of vectors for clinical trials to Therapeutics Production Section Head providing oversight for GMP operations. From 1993 to 1999 she was a microbiologist at C. E. Kord Animal Diagnostic Laboratory providing diagnostic testing for multiple animal species. Lisa McClain-Moss received her BS in Biology/Microbiology from Tennessee Technological University.


Anthony Oliva PhD

Senior Scientist

Anthony Oliva, Ph.D. has been with Longeveron since 2015. Dr. Oliva has over 20 years of basic and clinical research experience, has deep experience in regulatory affairs, and has been integral in leading Longeveron’s grant application and grant funding process. Prior to joining Longeveron, he held a faculty appointment at Florida International University. Dr. Oliva earned his B.A. in Biological Sciences from the University of Chicago, and his Ph.D. in Neuroscience from Baylor College of Medicine. He did his post-doctoral research at Oregon Health & Science University.

Dan Gincel PhD

Senior VP,

Strategic Collaborations & Scientific Affairs

Dan Gincel Ph.D. joined Longeveron as a senior VP in 2021 to lead the Strategic Collaborations & Scientific Affairs division. Dr. Gincel has over 20 years leadership and experience of overseeing development and commercialization of regenerative medicines, including cell therapies, as well as establishing public-private collaborations and corporate partnerships. Previously, he served as Vice President of University Partnerships and a member of the Executive Leadership team at the Maryland Technology Development Corporation (TEDCO), where he oversaw programs to accelerate the commercialization of technologies from federal, state, and private Maryland research institutions. Additionally, he served as Executive Director at the Maryland Stem Cell Research Fund (MSCRF), where he managed $150+ million in stem cell research funding. During his tenure, he helped create and support more than 55 technology startup companies with over $120 million of follow-on funding and numerous successful exits. Dr. Gincel received both his Ph.D. (2003) and his B.Sc. (1996) from Ben-Gurion University in Israel and his postdoctoral training at the Johns Hopkins University.