Nallakkandi Rajeevan, PhD
Senior Research Scientist of Biomedical Informatics and Data ScienceDownloadHi-Res Photo
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Associate Director for Bioinformatics, Yale Center for Medical Informatics
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Appointments
Additional Titles
Associate Director for Bioinformatics, Yale Center for Medical Informatics
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Appointments
Additional Titles
Associate Director for Bioinformatics, Yale Center for Medical Informatics
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About
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Senior Research Scientist of Biomedical Informatics and Data Science
Associate Director for Bioinformatics, Yale Center for Medical Informatics
Biography
Dr. Rajeevan's research focuses on applying his deep knowledge in theoretical computer science, algorithm development, statistical estimation theory, and biostatistics to problems in genomics, bioinformatics, nuclear medicine and functional brain imaging. He received his B.E., M.S., and Ph.D. from Indian Institute of Science, Bangalore, India and did his post-doctoral fellowship in Nuclear Medicine from University of Massachusetts Medical Center, Worcester, MA.
Last Updated on April 07, 2025.
Appointments
Biomedical Informatics & Data Science
Senior Research ScientistPrimary
Other Departments & Organizations
- Biomedical Informatics & Data Science
- Genomics, Genetics, and Epigenetics
- Yale Cancer Center
- Yale-BI Biomedical Data Science Fellowship
Education & Training
- Post-doctoral fellow
- University of Massachusetts Medical Center (1993)
- PhD
- Indian Institute of Science (1992)
- MS
- Indian Institute of Science, Electrical Engineering (1986)
- BE
- Indian Institute of Science, Electronics and Communications (1979)
Research
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Overview
Medical Research Interests
Information Science
Public Health Interests
Bioinformatics; Cancer; Genetics, Genomics, Epigenetics
ORCID
0000-0002-2045-0872
Research at a Glance
Yale Co-Authors
Frequent collaborators of Nallakkandi Rajeevan's published research.
Publications Timeline
A big-picture view of Nallakkandi Rajeevan's research output by year.
Mihaela Aslan, PhD
Lei Yan, PhD
Yuan Huang, PhD
John Seibyl, MD
Hongyu Zhao, PhD
Hung-Mo Lin
77Publications
4,888Citations
Publications
Featured Publications
Effectiveness of Nirmatrelvir-Ritonavir Against the Development of Post-COVID-19 Conditions Among U.S. Veterans : A Target Trial Emulation.
Ioannou G, Berry K, Rajeevan N, Li Y, Mutalik P, Yan L, Bui D, Cunningham F, Hynes D, Rowneki M, Bohnert A, Boyko E, Iwashyna T, Maciejewski M, Osborne T, Viglianti E, Aslan M, Huang G, Bajema K. Effectiveness of Nirmatrelvir-Ritonavir Against the Development of Post-COVID-19 Conditions Among U.S. Veterans : A Target Trial Emulation. Annals Of Internal Medicine 2023, 176: 1486-1497. PMID: 37903369, PMCID: PMC10620954, DOI: 10.7326/m23-1394.Peer-Reviewed Original ResearchCitationsAltmetricBiological insights into schizophrenia from ancestrally diverse populations
Bigdeli T, Chatzinakos C, Bendl J, Barr P, Venkatesh S, Gorman B, Clarence T, Genovese G, Iyegbe C, Peterson R, Kolokotronis S, Burstein D, Meyers J, Li Y, Natarajan S, Francis M, Rajeevan N, Cheung K, DeLisi L, Kosten T, Zhao H, Achtyes E, Buckley P, Malaspina D, Lehrer D, Rapaport M, Braff D, Pato M, Fanous A, Pato C, Huang G, Muralidhar S, Gaziano J, Pyarajan S, Girdhar K, Lee D, Hoffman G, Aslan M, Fullard J, Voloudakis G, Harvey P, Roussos P. Biological insights into schizophrenia from ancestrally diverse populations. Nature 2026, 651: 404-413. PMID: 41565822, DOI: 10.1038/s41586-025-10000-6.Peer-Reviewed Original ResearchCitationsAltmetric
2026
Durability of Respiratory Syncytial Virus Vaccine Effectiveness Among US Veterans
Bajema K, Bui D, Yan L, Li Y, Rajeevan N, Vergun R, Sriskantharajah V, Hynes D, Berry K, Huang Y, Lin H, Aslan M, Ioannou G. Durability of Respiratory Syncytial Virus Vaccine Effectiveness Among US Veterans. JAMA Internal Medicine 2026, 186: 78-88. PMID: 41284307, PMCID: PMC12645397, DOI: 10.1001/jamainternmed.2025.6355.Peer-Reviewed Original ResearchCitationsAltmetric
2025
Design of precision therapeutics for a CKD risk allele by targeting Shroom3-Rock interaction
Reghuvaran A, Kumar A, Lin Q, Rajeevan N, Banu K, Sun Z, Shi H, Barsotti G, Tanvir E, Pell J, Perincheri S, Wei C, Bharathan B, Planoutene M, Eichmann A, Mas V, Zhang W, Cantley L, Xu L, Das B, He J, Menon M. Design of precision therapeutics for a CKD risk allele by targeting Shroom3-Rock interaction. Nature Communications 2025, 17: 1086. PMID: 41469391, PMCID: PMC12852734, DOI: 10.1038/s41467-025-67854-7.Peer-Reviewed Original ResearchAltmetricImpact of time zero designation on estimated COVID-19 antiviral effectiveness in observational studies
Bajema K, Yan L, Berry K, Bui D, Lin H, Huang Y, Li Y, Rajeevan N, Maciejewski M, Smith V, Bohnert A, Hynes D, Aslan M, Ioannou G. Impact of time zero designation on estimated COVID-19 antiviral effectiveness in observational studies. American Journal Of Epidemiology 2025, 195: 562-568. PMID: 41078178, DOI: 10.1093/aje/kwaf221.Peer-Reviewed Original ResearchCitationsAltmetricBudget Impact of Adopting Nirmatrelvir-Ritonavir for Treating COVID-19 in a Large Integrated Healthcare System
Bui D, Hynes D, Wong E, Vergun R, Yan L, Li Y, Rajeevan N, Berry K, Lin H, Huang Y, Govier D, Aslan M, Ioannou G, Bajema K. Budget Impact of Adopting Nirmatrelvir-Ritonavir for Treating COVID-19 in a Large Integrated Healthcare System. Open Forum Infectious Diseases 2025, 12: ofaf596. PMID: 41089767, PMCID: PMC12517272, DOI: 10.1093/ofid/ofaf596.Peer-Reviewed Original ResearchAltmetricCombining Rule-based NLP-lite with Rapid Iterative Chart Adjudication for Creation of a Large, Accurately Curated Cohort from EHR data: A Case Study in the Context of a Clinical Trial Emulation.
Mutalik P, Cheung K, Green J, Buelt-Gebhardt M, Anderson K, Jeanpaul V, McDonald L, Wininger M, Li Y, Rajeevan N, Jessel P, Moore H, Adabag S, Raitt M, Aslan M. Combining Rule-based NLP-lite with Rapid Iterative Chart Adjudication for Creation of a Large, Accurately Curated Cohort from EHR data: A Case Study in the Context of a Clinical Trial Emulation. AMIA Annual Symposium Proceedings 2025, 2024: 847-856. PMID: 40417550, PMCID: PMC12099393.Peer-Reviewed Original ResearchTarget Trial Emulation of SARS-CoV-2 Infection Versus No Infection and Risk of Post–COVID-19 Conditions in the Omicron Variant Versus Prior Eras
Ioannou G, Berry K, Rajeevan N, Li Y, Yan L, Huang Y, Bui D, Hynes D, Rowneki M, Hickok A, Niederhausen M, Shahoumian T, Bohnert A, Boyko E, Korpak A, Fox A, Baraff A, Iwashyna T, Maciejewski M, Smith V, Berkowitz T, Pura J, Hebert P, Wong E, O’Hare A, Osborne T, Viglianti E, Aslan M, Bajema K. Target Trial Emulation of SARS-CoV-2 Infection Versus No Infection and Risk of Post–COVID-19 Conditions in the Omicron Variant Versus Prior Eras. Clinical Infectious Diseases 2025, 81: 10-19. PMID: 40208261, DOI: 10.1093/cid/ciaf087.Peer-Reviewed Original ResearchCitationsAltmetricSeverity and Long-Term Mortality of COVID-19, Influenza, and Respiratory Syncytial Virus
Bajema K, Bui D, Yan L, Li Y, Rajeevan N, Vergun R, Berry K, Huang Y, Lin H, Aslan M, Ioannou G. Severity and Long-Term Mortality of COVID-19, Influenza, and Respiratory Syncytial Virus. JAMA Internal Medicine 2025, 185: 324-334. PMID: 39869355, PMCID: PMC11773409, DOI: 10.1001/jamainternmed.2024.7452.Peer-Reviewed Original ResearchCitationsAltmetricEffectiveness of the 2023-to-2024 XBB.1.5 COVID-19 Vaccines Over Long-Term Follow-up : A Target Trial Emulation.
Ioannou G, Berry K, Rajeevan N, Li Y, Yan L, Huang Y, Lin H, Bui D, Hynes D, Rowneki M, Bohnert A, Boyko E, Iwashyna T, Maciejewski M, Smith V, Berkowitz T, O'Hare A, Viglianti E, Aslan M, Bajema K. Effectiveness of the 2023-to-2024 XBB.1.5 COVID-19 Vaccines Over Long-Term Follow-up : A Target Trial Emulation. Annals Of Internal Medicine 2025, 178: 348-359. PMID: 39903865, DOI: 10.7326/annals-24-01015.Peer-Reviewed Original ResearchCitationsAltmetric
Academic Achievements & Community Involvement
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Honors
honor Life Senior Member
10/26/2021International AwardInstitute of Electrical and Electronics Engineers (IEEE), Inc., New YorkDetailsUnited Stateshonor Lifetime Service Award
06/01/2010International AwardIndo-American Society of Nuclear MedicineDetailsUnited States
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