Dr. Gerardo Sandoval Isaac

Dr. Gerardo Sandoval, also known as “Dr. Gerry” — is a pioneering figure in the world of Toad Medicine and an OB/GYN surgeon practicing in Mexico. With over two decades of experience working with sacred medicines, he specializes in Bufo Alvarius ceremonies, combining clinical knowledge with his toad medicine expertise.

Having facilitated over 8,000 ceremonies, Dr. Gerry brings an exceptional level of experience, discernment, and depth to this work. He resides in Chihuahua, Mexico, where he is available year-round for private ceremonies. He is also involved in select ceremonies in Tulum and offers guidance and support to Sacred Heart Sonora.

Dr. Gerry is the owner of Rancho Bufo Alvarius in Sonora, Mexico, where he has been practicing toad conservation for the past seven years. His conservation work includes habitat stewardship and ethical, responsible sourcing practices that honor the animal and protect the future of the medicine.
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He is widely recognized for bringing awareness to this work internationally, having shared sacred medicine with public figures including Mike Tyson, as well as other high-profile individuals. He is the author of three books on toad medicine, including The God Molecule and The Bufo Medicine Codex, and has been featured in major media including VICE’s Hamilton’s Pharmacopeia, High Society, and documentaries produced by Channel 4 and Strg_f. Dr. Gerry was also the first guest on Mike Tyson’s Hotboxin’ podcast, helping introduce the world to both the power of the medicine and the responsibility that must come with it.

Kate McCabe

Kate is the creator of Sacred Heart Sonora, a plant medicine guide, and an integration specialist dedicated to the living medicine of Bufo Alvarius. She has a B.A. in Psychology from the University of Arizona and certifications in plant medicine integration. Her work bridges modern psychology, shamanic wisdom, and psychedelic therapy, offering compassionate intake and integration support for clients on transformational journeys.

Since 2018, Kate has held ceremonial space in over 1,400 Bufo Alvarius ceremonies, developing profound expertise through direct, embodied experience. Her path has been shaped by years of dedicated personal practice and by training alongside respected pioneers of this medicine, including both physicians and traditional carriers. Dr. Gerry was among the first to introduce Kate to the medicine, serving as her mentor for seven years while she worked closely as his assistant. Kate’s journey—profoundly shaped by love, mentorship, and transformation—continues to inspire her unwavering dedication to holding space with integrity, reverence, and deep compassion.

Kate is also a devoted advocate for Sonoran Desert Toad Conservation and the ethical collection of medicine. For the past five summers, she has led conservation efforts in Magdalena de Kino, Sonora, Helping to raise awareness and protect the sacred toad population.