Lily Johnston, MD, MPH

Nexus HealthSpan Associate Medical Director and cardiometabolic disease prevention expert Lily Johnston, MD, MPH, is board-certified in both vascular and general surgery. Dr. Johnston obtained her undergraduate education at Princeton University in New Jersey and received her Medical Doctorate from the University of California, San Diego; she completed her residency in general surgery at the University of Virginia in Charlottesville and then completed a fellowship in vascular surgery at the Mayo Clinic in Rochester, MN. Dr. Johnston also has a Masters in Public Health from the Johns Hopkins Bloomberg School of Public Health in Baltimore, MD. She has authored over 25 peer-reviewed studies in cardiovascular disease and has given numerous talks on topics regarding cardiovascular disease prevention, metabolic health, and nutrition.

After several years of practicing vascular surgery full-time, Dr. Johnston witnessed too many people losing their limbs and even their lives to preventable and reversible diseases - this inspired her to found Vascular Health Institute in an effort to forward cardiovascular health and wellness. Dr. Johnston has now dedicated her career to addressing the root cause of cardiovascular disease and is passionate about bringing the principles of functional medicine and metabolic health to her patients.


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Dr. Johnston is a member of the Society for Vascular Surgery. She is an accredited metabolic health practitioner with both the Society of Metabolic Health Practitioners and the Nutrition Network; she is currently pursuing advanced certification in functional medicine.

Specialties & Expertise

Dr. Johnston is board certified in both general and vascular surgery. She is a published expert in cardiovascular disease and complex cardiometabolic therapy including lipid management, therapeutic nutrition protocols, bioidentical hormone replacement therapy (BHRT), functional testing, and imaging.

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26732 Crown Valley Parkway Suite 371

Mission Viejo, CA 92691

Call: 949-868-0387

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