Boston's Top Doctors Redefine Primary Care with Longevity Science

Two Boston-based physicians, Dr. Jay Luthar and Dr. Julia Loewenthal, have been named 2026 Castle Connolly Top Doctors. This prestigious recognition places them among the top 7% of licensed physicians in the US. Both doctors practice at Lutanen Health, a cutting-edge primary care and longevity clinic in Back Bay.

The selection process for Castle Connolly Top Doctors examines medical education, training, hospital roles, and disciplinary records. Only a small fraction of physicians receive this honour each year.

Lutanen Health stands out by blending traditional primary care with longevity science. The practice limits each doctor to 150 patients, ensuring personalised attention rather than high-volume care. Patients benefit from extended visits, same-day appointments, and access to advanced diagnostics, including AI-guided plaque detection and multi-cancer blood tests.

The clinic's newly designed facility features a human performance laboratory, supporting a proactive approach to health. Both Dr. Luthar and Dr. Loewenthal hold academic positions at Harvard Medical School, adding to their expertise. Their practice shifts the focus from reactive treatment to long-term health preservation.

The recognition highlights Lutanen Health's commitment to redefining primary care. With a focus on prevention and advanced diagnostics, the clinic offers a model distinct from traditional practices. Patients gain access to specialised, technology-driven care under physicians ranked among the nation's best.