Education & Training

Medical School

Madurai Medical College


Internal Medicine

  • University of Missouri School of Medicine GME


Pulmonary and Critical Care Medicine

  • University of Missouri School of Medicine GME

Infectious Disease

  • University of Missouri School of Medicine GME


American Board of Internal Medicine
American Board of Internal Medicine/Infectious Disease
American Board of Internal Medicine/Critical Care Medicine


MU Health Care participates with most major managed care organizations. To find out whether MU Health Care is a participating provider in your insurance plan or network, or for information on co-payments and deductibles, please contact your insurance carrier directly.

In the News

COVID-19 Treatments & Vaccines: The Science Behind These Options (KFRU)
Pandemic Updates: Antivirals, Steroids, Plasma Therapy, Vaccine Trials (KFRU)
COVID-19: What We've Learned About PPE, Treatments and Vaccines (KBIA)
The Coronavirus: What Mid-Missourians Should Know (KFRU)
Dr. Regunath Discusses Histoplasmosis on ABC 17

Academic Information

Assistant Professor of Clinical Medicine
Medical Director, Progressive Care Unit, MU Health Care University Hospital
Clinical Consultant, MU Health Care Microbiology Lab


1 Hospital Drive
Columbia, MO 65212
United States

F. 573-884-1235

Research Interests

  • Antimicrobial resistance
  • Nosocomial Infections
  • Sepsis/Septic Shock
  • Infective Endocarditis
  • Imported exotic diseases
  • Acute Respiratory Distress Syndrome

Areas of Expertise

  • Hospitalist medicine
  • Critical care medicine
  • Infectious diseases

Awards & Honors

Honors & Awards

  • 2021 - American College of Physicians - Book Award in honor of outstanding education contributions
  • 2021 - Excellence in Teaching Award -  Family Medicine Residency Program
  • 2019 - Excellence in Education: Most Outstanding Clinical Educator (Medical Students Affairs Council)
  • 2019 - Outstanding teacher – Department of Medicine
  • 2018 - Quality Improvement Mentor of the Year 2017-18
  • 2018 - Outstanding Teacher – Department of Medicine
  • 2017 - Student Teaching Award - Outstanding Clinical Faculty - Inpatient
  • 2013 - Overall Best Resident

Profesional Societies

  • American College of Physicians
  • Infectious Diseases Society of America
  • Society of Critical Care Medicine
  • American Medical Association


  • 2009-10: Assistant professor, Medical Intensive Care Unit, SRM Medical College and Research Center, India


Selected Publications

  1. Regunath H, Moulton, N., Woolery, D., Alnijoumi, M., Whitacre, T., & Collins, J. (2018). Ultra-protective mechanical ventilation without extra-corporeal carbon dioxide removal for acute respiratory distress syndrome. Journal of the Intensive Care Society, 1751143718774712.
  2. Haslag-Minoff J, Regunath H. Relapsing Polychondritis. N Engl J Med. 2018 May 3;378(18):1715. doi: 10.1056/NEJMicm1713302. PubMed PMID: 29719184
  3. Regunath H, Cochran K, Cornell K, Shortridge J, Kim D, Akbar S, Boshard B,Chitima-Matsiga R, Reddy J, Keithahn S, Koller JP. Is It Painful to Manage Chronic Pain? A Cross-Sectional Study of Physicians In-Training in a University Program. Mo Med. 2016 Jan-Feb;113(1):72-8. PubMed PMID: 27039496.
  4. Regunath H, Kimball J, Smith LP, Salzer W. Severe Community-Acquired Pneumonia with Bacteremia Caused by Herbaspirillum aquaticum or Herbaspirillum huttiense in an Immune-Competent Adult. J Clin Microbiol. 2015 Sep; 53 (9):3086-8. doi: 10.1128/JCM.01324-15. Epub 2015 Jul 15. PubMed PMID: 26179298; PubMed Central PMCID: PMC4540902.
  5. Khosla N, Washington KT, Regunath H. Perspectives of Health Care Providers on US South Asians' Attitudes toward Pain Management at End of Life. Am J Hosp Palliat Care. 2015 Jun 29. pii: 1049909115593063. [Epub ahead of print] PubMed PMID: 26124469.
  6. Regunath H, Ariyamuthu VK, Dalal P, Misra M. Bath salt intoxication causing acute kidney injury requiring hemodialysis. Hemodial Int. 2012 Oct;16 Suppl 1:S47-9.
  7. Regunath H, Shivakumar BM, Kurien A, Satyamoorthy K, Pai CG. Anthropometric measurements of nutritional status in chronic pancreatitis in India: comparison of tropical and alcoholic pancreatitis. Indian J Gastroenterol. 2011. Mar; 30(2):78-83.
  8. Regunath H, Pai G. Under-nutrition in tropical pancreatitis: cause or effect? Gastroenterology 2009 May;136: A-388.
  9. Regunath H, Shivasankara KN, Sundeep KB, Bhaskar AP. Reactivation of Herpes Zoster in an adult with plasmodium infection. Journal of Vector Borne Diseases. 2008 Sep; 7(3): 251-253.
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