Dr. Nagarajan Ramakrishnan [MBBS, Dip. (Internal Medicine), Dip. (Critical Care Medicine), Dip. (Sleep Medicine) from the American Board of Internal Medicine (ABIM)] is one of the leading specialists in Sleep medicine in India. He currently works at Nithra Institute of Sleep Sciences, Apollo Hospitals, Chennai, India. He has previously worked with Sleep Disorders Center, Fairview Park Hospital, Dublin, Georgia, USA.
Dr. Nagarajan’s expertise includes complex sleep problems, managing special children cases with sleep problems, snoring troubles, Obstructive Sleep Apnea (OSA), etc.
Dr. Nagarajan Ramakrishnan completed his medical schooling from Stanley Medical College Tamil Nadu, India. He then went ahead to acquire Diploma in Internal Medicine, Critical Care Medicine and Sleep Medicine respectively, from the American Board of Internal Medicine (ABIM). He has published 15 peer-reviewed articles in international journals and has delivered talks at academic platforms in India. Dr. Nagarajan is the Founder of TACT Academy for Clinical Training, India’s first stimulation based healthcare training center which is listed in Limca Book of Records and he has also won healthcare innovation award in 2011.
Current Job Profile
Consultant Sleep Medicine
Nithra Institute of Sleep Sciences, India
Apollo Hospitals, Chennai, India
Comprehensive clinical care for patient with sleep related problems
Director, Nithra Institute of Sleep Sciences, India
Director, Critical Care Services, Apollo Hospitals, India
Vice President, Indian Sleep Disorders Association
Corporate health consulting with a special focus on preventing sleep related problems in shift workers
Creating awareness & treatment of snoring and obstructive sleep apnea
Top Most Diseases Treated
Special children with sleep problems
Second opinions for complex sleep problems
Degree's & Diploma's Fellowships
MBBS from Stanley Medical College, University of Madras in 1989
Diplomate - American Board of Internal Medicine from American Board of Internal Medicine (ABIM) in 1995
Diplomate, American Board - Critical Care Medicine from American Board of Internal Medicine in 1998
Diplomate, American Board, Sleep Medicine from American Board of Internal Medicine in 2009
Past Hospital Appointments
Medical Director, Sleep Disorders Center, Fairview Park Hospital, Dublin, Georgia, USA
Memberships of Scientific Associations
Vice President & Fellow, Indian Sleep Disorders Association
1. Member, American Academy of Sleep Medicine
2. Organizing Chairperson, Sleepcon 2009, International Conference
3. Member of Editorial Board, Indian Journal of Sleep Medicine
Research Papers Published
1. Ramakrishnan N. Business of Sleep Medicine. Indian J Sleep Med 2010; 5: 1:1-4
2. S Prakash, N Ramakrishnan. Narcolepsy: How common is the tetrad? Indian J Sleep Med 2009; 4 (2): 68-69.
3. Chavda M, Cherian A, Abraham BK, Ramakrishnan N. Medicolegal aspects of organ transplantation in India. IJPP 2009; 11 (2):112
4. Jayaram R, Ramakrishnan N. Cost of Intensive Care in India. Indian Journal of Crit Care Medicine, 2008; 12: 55
5. Shneiderman H, Ramakrishnan N. Pretibial Myxoedema, autoimmune thyroid disorders, ophthalmopathy, and generalized myxedema: a confusing mixture. CONSULTANT 2008; 48:387-389.
6. Ariga Padma, Ramakrishnan N, Vinod Narayanan. Management of Sleep Apnea: A dental perspective. Indian J Dent Res, 2007; 18 (4): 210
7. Bihari S, Ramakrishnan N. A boy with episodic hypersomnolence – a case report. Indian Journal of Sleep Medicine 2007; 2 (3): 109.
8. Bihari S, Rajesh V, Ramakrishnan N. Value of Noninvasive Positive Pressure Ventilation (NPPV) during fiberoptic bronchoscopy. Indian Journal of Bronchology. 2007: 2:123.
09. Bihari S, Jain N, Ramakrishnan N. Critical Care in India. ICU Management 2006/2007; 6 (4): 38.
10. Raja JR, Ramakrishnan N. Comparison of Critical Care Services in Indian and the UK. ICU Management 2006/2007; 6 (4): 42.
11. Bihari S, Ramakrishnan N. Delayed Sleep Phase Syndrome – A Case report. Indian Journal of Sleep Medicine 2006 (1): 3: 154.
11. JR Raja, BK Abraham, N Ramakrishnan. ICU Telemedicine in India; promises and reality. ICU Management 2005;5 (4):14
12. Clermont G, Angus DC, Kalassian KG, Linde-Zwirble WT, Ramakrishnan N, Linden PK, Pinsky MR. Reassessing the value of short-term mortality in sepsis: Comparing conventional approaches to modeling. Crit Care Med 2003; 31: 2627-2633.
13. Kellum JA, Angus DC, Johnson JP, Leblanc M, Griffin M, Ramakrishnan N, Linde-Zwirble WT. Continuous versus intermittent renal replacement therapy: A Meta-analysis. Intensive Care Medicine 2002. 28:29-37.
14. Ramakrishnan N. An update on methods of resuscitation. Resident reporter 1999. 4; 45.
15. Angus DC, Ramakrishnan N. Health Services and outcomes research in critical care. Critical Care and Shock 1998. 2: 109.
Fellow, American College of Physicians
Fellow, American College of Chest Physicians
Fellow, American College of Critical Care Medicine
Fellow, Indian Society of Critical Care Medicine
Fellow, Indian Sleep Disorders Association
Instruments & Inventions
Founder, TACT Academy for Clinical Training, India's first simulation based healthcare training center which is listed in Limca Book of Records (2009) for this distinction and also won healthcare innovation award (2011)
Other Professional Information
Established Nithra Institute of Sleep Medicine, India's first free standing comprehensive sleep center.
First American Board Certified Sleep Medicine specialist to practice in India