The Premier Booking & Concierge Platform Connecting US and Canadian Patients with Tijuana’s Elite Bariatric Surgeons.



Cornerstone Bariatrics, owned by Dr. Sandy Martinez, is an elite digital marketing and medical tourism booking agency dedicated to connecting international patients with advanced bariatric surgery. We partner exclusively with state-of-the-art certified facilities in Mexico — ensuring our clients are matched with professionals far removed from the high-volume, assembly-line model. Through our comprehensive concierge services, every patient receives personalized logistical support from the initial consultation through recovery. As your dedicated facilitators, we build the ethical, safe, and comfortable foundation from which you can begin your journey toward lasting health.





Over the years, Dr Sandy Martinez have become one of the most trusted names in bariatric medical tourism, guiding patients from across the United States and Canada through life-changing surgical experiences — with the safety, dignity, and personalized care they deserve.
Every Cornerstone patient is supported by a multidisciplinary team of specialists — because lasting transformation requires more than a single surgery. From your first consultation to your long-term follow-up, this is the team walking alongside you.