MBSR00-Instructor-Gus-Sq

Gus Castellanos

Gus Castellanos, M.D. is a graduate of the U of Miami Miller School of Medicine, 1980. He practiced Neurology and Sleep Medicine for 25 years. He began practicing mindfulness in 1998 and teaching mindfulness programs in 2009. He is now a full-time mindfulness based program teacher that is certified to teach MBSR by the University of Massachusetts Center For Mindfulness. He also trained at the University of Miami’s Neuroscience of Mindfulness Lab. He currently teaches mindfulness-based programs at a variety of facilities throughout So Fla. including the University of Miami School of Medicine's Osher Center For Integrative Medicine, FIU College of Medicine, UMindfulness, Mindful Kids Miami, and the Sari Center for Integrative Cancer Care. He has trained thousands of participants in his mindfulness classes and workshops.

He has delivered programs for law firms, American Express, Tiger 21, eClerx LLC, Junior League of the Palm Beaches, and teaches specific populations such as Nurses, Judges, Physicians, US Army soldiers, First Responders, Veterans, and behavioral health specialists, to name a few. He facilitates bi-monthly mindfulness sessions at a prison since 2011, participates in mindfulness research, lectures widely and writes a twice-monthly Mindfulness newsletter. He serves on Palm Health Foundation's Better Brain Health Advisory Board. Gus is devoted to bettering brain and mental health, wellbeing and resilience through mindfulness.

  • Teacher certification level: Level 3 Certified Teacher 
  • Previous class feedback score: 4.7 out of 5 stars
  • Years of experience: 11
  • Certification from: UMass Center for Mindfulness

Listen to a meditation from Gus: 


  • Mindful Leader

    “The class was great! I would recommend it for anyone, from beginners to people with years of experience in studying mindfulness/stress reduction. Gus is a great mindful leader! Highly recommend this class!!!”

    University of Virginia

  • Mindful Leader

    “I have become a big fan of meditation, and the MBSR program just took me to brand new levels! The teacher was great! He was understanding, gentle yet solid in his instruction and technique. I feel like the entire class benefited, and I personally feel like I, along with whoever will be connected to me from here out will benefit because of the MBSR training!”

    Creative communicator, Artist, Teacher

  • Mindful Leader

    “ Gus was truly an amazing teacher. I feel so much more in control of my thoughts and my emotions and a profound sense of gratefulness for my body. Thank you! ”