Meet OurMedical Team
Our physicians combine decades of advanced training with a passion for personalized, preventative care. Experience medicine designed around you.
Dr. Sam Zand is a double board-certified physician and Medical Director of Evolve Longevity, specializing in anti-aging, regenerative, and longevity medicine.
Before medicine, he competed as a semi-professional soccer player. That athlete's mindset — relentless optimization, data-driven decisions, zero tolerance for "good enough" — now drives his clinical practice.
He earned his degree in Biochemistry and Cell Biology at UC San Diego, completed medical school at St. George's University, and finished his Family Medicine residency at St. Mary and Elizabeth Medical Center in Chicago. Recognizing that metabolic health is the cornerstone of longevity, he pursued board certification in Obesity Medicine through Columbia Cornell University.
Dr. Zand builds personalized protocols for high performers who refuse to accept decline as inevitable. His mission: more years, more strength, more life.
Certifications
- Board Certified - Family Medicine
- Board Certified - Obesity Medicine (Columbia Cornell University)
Education
- B.S. Biochemistry & Cell Biology - University of California, San Diego
- M.D. - St. George's University School of Medicine
- Residency - St. Mary and Elizabeth Medical Center, Chicago
Dr. Gavin Ajami is the owner of Kinesis MD, a concierge functional sports medicine practice, and serves as Director of Regenerative Medicine at Evolve Longevity.
His approach: treat pain as a signal, not just a symptom. This perspective comes from comprehensive training — he underwent residency training in Internal Medicine and Physical Medicine & Rehabilitation, combined with formal education in applied physiology, kinesiology, and public health.
Before medical school, he worked as a clinical myofascial massage practitioner, developing a hands-on understanding of how the body compensates, adapts, and breaks down.
Dr. Ajami earned his medical degree from SUNY Upstate Medical University and holds a Master of Public Health from the University of Miami. He has contributed to peer-reviewed research in sports medicine, including published work on articular cartilage damage in patellar dislocation.
At Evolve Longevity, he integrates Eastern and Western medical principles into practical protocols focused on restoring function, eliminating pain, and building long-term resilience.
Certifications
- Doctor of Concierge Functional Sports Medicine
- Clinical Myofascial Massage Therapist
- Master of Public Health
Education
- M.D., SUNY Upstate Medical University
- M.P.H., University of Miami
- B.S. Applied Physiology and Kinesiology, University of Florida
- Residency Training - Internal Medicine and Physical Medicine and Rehabilitation
Dr. Melissa Betance is a Naturopathic Doctor and Certified Nutrition Specialist serving as Director of Metabolic Health at Evolve Longevity, specializing in metabolic optimization, body composition, and root-cause clinical care.
Her philosophy: the body isn't broken — it's responding. Metabolic health reflects how the body produces, circulates, and uses energy at the cellular level, and supporting that internal terrain is what allows the body to adapt, repair, and perform.
Before medicine, she competed as a collegiate soccer player and trained as a bodybuilding athlete — a performance-driven foundation that now shapes her clinical work. She earned her degree in Exercise Science at Elmhurst University and completed her Doctor of Naturopathic Medicine at the National University of Health Sciences. Recognizing that lasting performance starts at the cellular level, she became a Certified Nutrition Specialist and Licensed Dietitian Nutritionist in Illinois and Florida.
Dr. Betance builds individualized protocols that integrate naturopathic medicine, precision nutrition, and clinical homeopathy. Her mission: fix the metabolism, restore the system, and unlock peak performance.
Certifications
- Doctor of Naturopathic Medicine (ND)
- Certified Nutrition Specialist (CNS)
- Licensed Dietitian Nutritionist (LDN) — Illinois & Florida
Education
- Doctor of Naturopathic Medicine — National University of Health Sciences
- B.S. Exercise Science — Elmhurst University
How They Complement Each Other
Dr. Gavin
The Body Mechanic
Fixes what's broken. Restores movement. Eliminates pain.
Dr. Sam
The Performance Architect
Optimizes what's working. Extends healthspan. Prevents decline.
Dr. Melissa
The Metabolic Engineer
Tunes the terrain. Builds the foundation. Fuels the system.
A Complete Longevity Solution
Whether you need to recover from injury, optimize peak performance, or rebuild your metabolic foundation from the cellular level — one of these physicians is built for your situation, and they collaborate to ensure continuity of care across every layer of your health.
Ready to Transform Your Health?
Schedule a consultation with our medical team and discover how personalized, physician-led care can help you achieve your longevity goals.
Book Your Consultation