Who Am I
Hello!
I’m Dr. Mariana Calleja Ross MD, a healthcare professional with over 18 years of experience in chronic pain management, palliative care, and occupational medicine. Over the years, I’ve had the privilege of accompanying patients through every stage of health — from prevention to end-of-life care.
That journey showed me something important: true medicine is not just about treating disease, it’s about empowering people to understand their health, make informed decisions, and build habits that last a lifetime.
Today, my work focuses on health writing and preventive online consultations — a space where you and I can talk openly about your health, review test results in plain language, explore lifestyle choices, and create a personalised plan for long-term wellness.
My approach is simple: clear explanations, practical guidance, and genuine care. I don’t replace your treating physicians — instead, I complement their work and, with your permission, can communicate with them to ensure you feel supported and guided at every step.
For me, medicine is more than science. It’s a partnership built on trust, compassion, and the belief that health should feel less overwhelming and more empowering.
Your health deserves clarity and care — let’s begin this journey together.
*To learn more about me, you can visit my Linkedin profile.
Credentials & Achievements
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2000-2006: Doctor of Medicine by Universidad de Ciencias Medicas (UCIMED) | San Jose, Costa Rica.
2010-2011: Msc. in Chronic Pain Management | Universidad de Salamanca, Spain.
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2007-2009: General Practitioner in both public and private sectors in Costa Rica.
2010-2015: Primary elderly care & palliative care in Spain.
2015-2018: Creation of Feel Good, including the development of our first courses, health manuals and public speaking opportunities.
2018-2023: Occupational Medicine for the largest private company within the sector in Spain.
2023 - Present: Full-time medical writer and international healthcare consultant at The Feel Good Life.
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First international collaboration for mental health with RAMH, Scotland | 2023 - Present
Health & Wellness Columnist for the largest digital newspaper in Costa Rica | 2016-2017
Published Author: “Dear Julian” | 2018
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Languages:
Spanish - Native
English - Fluent
Italian - Fluent
Catalan - Fluent
Hindi - Intermediate Beginner
Contact Me
Interested in working together? Fill out this form and I will get back to you shortly. Thank you!