About
Dr. Richard Nguyen, DO, FACS, FACOS, is the founder and Medical Director of Lifetime Performance Medicine in Los Gatos, California. He holds board certification in General Surgery and completed his fellowship training in Minimally Invasive and Bariatric Surgery at Vanderbilt University. He has cared for Bay Area patients since 2007, building deep expertise in metabolic health, body composition, and surgical weight management.
Dr. Nguyen designed the practice's entire diagnostic framework, including the proprietary Lifetime Body Score. He leads personalized 12-month performance plans for each patient. His clinical work spans peptide therapy protocols, GLP-1-based weight management programs, and BioteRx bioidentical hormone pellet therapy. He is passionate about biological age assessment and uses PhenoAge, a validated formula, to give patients a precise measure of how their body ages at the cellular level. Patients across all membership tiers receive two direct visits with Dr. Nguyen each year.
Education & Training
Fellowship
Minimally Invasive and Bariatric Surgery, Vanderbilt University
Certifications
Conditions Treated
Who is Dr. Nguyen right for?
Dr. Nguyen works best with adults who want measurable, data-driven improvements to their health. His background in bariatric and minimally invasive surgery makes him especially effective with patients managing obesity, metabolic dysfunction, or hormonal decline. Executives and high performers who want a structured annual plan with clear benchmarks thrive in his practice. Patients dealing with fatigue, cardiovascular risk, or body composition concerns also find his diagnostic approach valuable. Anyone seeking peptide therapy, GLP-1 weight management, or hormone optimization benefits from his clinical depth in these areas.
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Frequently Asked Questions
Dr. Nguyen treats metabolic dysfunction, obesity, hormonal decline, fatigue, cardiovascular risk, chronic inflammation, body composition imbalance, and biological aging. His diagnostic system measures all of these domains simultaneously. Each treatment plan targets the specific areas where a patient's numbers fall short.
Dr. Nguyen is a board-certified General Surgeon with fellowship training in Minimally Invasive and Bariatric Surgery from Vanderbilt University. He holds the designations FACS and FACOS. He has practiced medicine in the Bay Area since 2007.
Dr. Nguyen specializes in performance and preventive medicine rather than general primary care. His focus centers on advanced diagnostics, longevity, metabolic optimization, and surgical expertise in weight management. Patients who want a physician actively working to improve their physical performance and long-term health are a strong fit.
All membership tiers include two direct visits per year with Dr. Nguyen. The Foundations plan includes five total care visits annually, with two of those going directly to Dr. Nguyen. Higher tiers offer additional touchpoints through wearable monitoring and mid-year lab reviews.
Yes. Dr. Nguyen builds personalized peptide protocols using agents including BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, MOTS-C, NAD+, KPV, Thymosin Alpha-1, and LL-37. Each protocol follows a diagnostic assessment of cellular health, hormonal patterns, and recovery capacity.
Yes. Dr. Nguyen uses BioteRx bioidentical hormone pellet therapy for both men and women. The pellets deliver a steady, sustained release of testosterone or estrogen over three to six months. Treatment begins with comprehensive lab work to guide precise dosing.
Dr. Nguyen offers GLP-1 therapy using Semaglutide and Tirzepatide as part of his advanced weight management program. Each program starts with diagnostic analysis of hormonal and metabolic function. His surgical background in bariatric medicine adds significant depth to his metabolic treatment approach.
Dr. Nguyen uses PhenoAge, a validated biological age formula, as part of every patient's diagnostic panel. The Executive membership tier also includes epigenetic age testing. Together, these tools give patients a precise picture of how their body ages at the cellular level.
Doctor profile last updated June 9, 2026