Dr. Ronald A. Primas is a New York–based physician with more than three decades of experience in concierge internal medicine and a practice focused primarily on longevity and healthspan-oriented care. He is board certified in Internal Medicine and holds formal certification in Travel Medicine and Tropical Medicine. Dr. Primas is a Fellow of the American College of Physicians (FACP) and a Fellow of the American College of Preventive Medicine (FACPM)—distinctions that reflect sustained excellence in clinical medicine and prevention-oriented care.

Dr. Primas has practiced concierge medicine since the early 1990s, long before the model became widely adopted. His approach is built on the principle that exceptional medical care requires time, access, continuity, and a deep understanding of each patient’s physiology, lifestyle, and long-term goals. By maintaining a limited patient panel, he provides direct physician access, extended visits, proactive monitoring, same-day and urgent care, house calls, and hospital coordination when needed. This high-touch, relationship-based model allows for thoughtful longitudinal care and precise clinical decision-making that is increasingly rare in conventional healthcare systems.

The central focus of Dr. Primas’s practice is longevity medicine, with equal emphasis on extending healthspan—the years of life lived in good health, independence, and functional capacity. Rather than concentrating solely on disease treatment, his clinical philosophy prioritizes optimizing resilience, metabolic health, cognitive performance, and physical function across the lifespan. He emphasizes early risk identification and prevention using comprehensive diagnostics, including advanced laboratory profiling, metabolic and cardiovascular risk assessment, body composition analysis, and emerging biomarkers relevant to biological aging. These data are integrated into individualized strategies involving lifestyle optimization, nutrition, exercise physiology, and targeted medical interventions designed to reduce chronic disease risk and preserve long-term vitality.

Dr. Primas is certified in integrative medicine, enabling him to thoughtfully incorporate evidence-based complementary approaches when appropriate, while maintaining rigorous standards of conventional internal medicine. His clinical approach blends traditional medicine with systems thinking, preventive principles, and the evolving science of aging and metabolic health. Care plans are highly individualized, data-driven, and grounded in clinical judgment rather than protocol-driven trends.

In addition to his longevity and healthspan work, Dr. Primas is formally certified in Travel Medicine and Tropical Medicine, with extensive experience advising patients on international travel health, infectious disease prevention, immunizations, and global risk mitigation. He regularly counsels patients traveling to high-risk or resource-limited regions and remains actively engaged in emerging infectious disease preparedness and traveler health optimization.

Dr. Primas frequently serves as a central coordinating physician for patients with complex medical needs, working closely with leading specialists, hospitals, and diagnostic centers in New York City and beyond. He is actively involved in medical education as a clinical instructor and is a trusted professional and media resource on topics related to preventive health, longevity, healthspan, and public health.

Dr. Primas’s practice is defined by precision, access, and partnership. Patients who work with him value a proactive, personalized approach to health, guided by an experienced physician committed to optimizing longevity, healthspan, performance, and quality of life over the long term.