Board-certified physicians, performance scientists, and clinical nutritionists working as one care team. Every plan is shaped, reviewed, and adjusted by the same people who know your story.
Elena founded the clinical practice at Lifexist after 15 years in internal medicine and hospital leadership. She trained at Stanford and Johns Hopkins, and her work focuses on translating longevity research into safe, individualized protocols members can actually live with.
Marcus leads our peptide and NAD+ programs. A former emergency physician, he became drawn to longevity medicine after watching how proactive care changed outcomes for his patients. He’s known among members for explaining complex protocols in language anyone can follow.
Sarah specializes in bioidentical hormone replacement, thyroid optimization, and the metabolic foundations of energy and mood. Her work blends precision diagnostics with conservative, finely-titrated dosing — patients see real change without overshooting.
Julia works with members who want to feel sharper, recover faster, and train longer — from masters athletes to founders who need their best decade ahead. Her work draws on sports medicine, sleep science, and HRV-led recovery protocols.
Sarah runs our IV suite and is usually the first person members meet on visit day. With over a decade of infusion experience in oncology and integrative medicine, she brings the kind of unhurried, attentive bedside manner that turns first-timers into regulars.
James designs the nutrition and metabolic side of every Lifexist plan. His approach is pragmatic — built around what members actually eat, train for, and travel through — and grounded in continuous glucose and body composition data.
Start with a 20-minute introductory call. We’ll match you with the clinician whose specialty fits where you want to start.
