Dr. Nagarajan Ramakrishnan
American Board Certified Specialist in Critical Care & Sleep Medicine
Dr. Nagarajan Ramakrishnan is an internationally recognized physician leader and an American Board Certified specialist in Internal Medicine, Critical Care Medicine, Sleep Medicine, and Obesity Medicine. With over three decades of clinical, academic, and administrative experience across India and the United States, he is widely regarded as a pioneer in modern critical care systems and sleep medicine in India.
He holds a Master’s degree in Medical Management (MMM) from the University of Southern California and is a Fellow of several prestigious institutions, including the American College of Physicians (FACP), American College of Chest Physicians (FCCP), American College of Critical Care Medicine (FCCM), American Academy of Sleep Medicine (FAASM), Indian College of Critical Care Medicine (FICCM), and the Indian Sleep Disorders Association (FISDA).
Dr. Nagarajan has played a significant role in advancing Critical Care and Sleep Medicine both nationally and internationally, contributing extensively to clinical excellence, education, and healthcare innovation.
He currently serves in multiple leadership and academic roles, including:
- Senior Consultant – Critical Care & Sleep Medicine
- Director, Critical Care Services – Apollo Hospitals, Chennai
- Director – Nithra Institute of Sleep Sciences
- Founder – Chennai Critical Care Consultants (CCCG)
- Director – RED TACT Academy for Clinical Training
- Adjunct Professor – Tamil Nadu Dr. MGR Medical University
Over two decades of advancing Critical Care and Sleep Medicine across borders.
ABOUT DR. NAGARAJAN RAMAKRISHNAN
Areas of Specialization
Comprehensive expertise across critical care, sleep medicine, internal medicine, and advanced clinical leadership.
International Education & Training
Dr. Ramakrishnan trained extensively in the United States and United Kingdom before returning to India.
- MBBS – Stanley Medical College, University of Madras
- Internal Medicine Residency – University of Connecticut (USA)
- Critical Care Fellowship – University of Pittsburgh (USA)
- Transplant Cardiology Fellowship – Hartford Hospital (USA)
- Master’s in Medical Management (MMM) – University of Southern California
- Board Certified – American Board of Internal Medicine
- Board Certified – Critical Care Medicine
- Board Certified – Sleep Medicine
- Board Certified – Obesity Medicine
Author & Public Health Educator
Beyond academia, he has authored books for both professionals and the public, including:
- Administrative Aspects of Critical Care
- ICU – What is happening inside?
- Sleep – Problems and Solutions
- Organ Donation: Myths & Facts
Awards & Recognition
Dr. Ramakrishnan has received numerous national and international honors, including:
