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Board Certifications

American Board of Neurological Surgery

Dr. Nitin Tandon serves as Professor and Chair ad interim of the Vivian L. Smith Department of Neurosurgery at UTHealth Medical School. Dr. Tandon received his medical degree at the Armed Forces Medical College in Pune, India, followed by a residency in neurosurgery at The University of Texas Health Science Center in San Antonio. He completed a fellowship in epilepsy surgery at Cleveland Clinic.

He has co-authored many studies, which have been published in NeuroImage, Journal of Neurosurgery, Clinical Neurosurgery and Human Brain Mapping. His current research studies include “The localization of eloquent cortex using functional imaging and using diffusion tensor imaging tractography” and “The electrophysiological characteristics of language regions.”

Dr. Tandon is a member of the Texas Medical Association, American Association of Neurological Surgeons, Organization of Human Brain Mapping, Society for Neuroscience and the American Epilepsy Society. He is an ad hoc reviewer for many peer-reviewed journals. He has been an invited speaker at national and international conferences and also directs an active research effort.


Graduate School
Armed Forces Medical College, Pune, India
Mayo Clinic, Rochester, Minnesota
The University of Texas Health Science Center at San Antonio, San Antonio, Texas
University of Washington, Seattle, Washington (Neurosurgery)
Cleveland Clinic, Cleveland, Ohio (Epilepsy)
Post Doctorate
The University of Texas Health Science Center at San Antonio, San Antonio, Texas (Human Neuroimaging)

Areas of Interest

Clinical Interests

  • Epilepsy surgery including placement of subdural grid electrodes, amygdalo-hippocampectomy, anterior temporal lobectomy, neo-cortical resections
  • Brain mapping and awake craniotomies
  • Brain tumor surgery, including: tumors in speech and motor cortex, insular tumors, intra-ventricular tumors, pineal tumors, pituitary and para-sellar tumors
  • Cavernous malformation (cavernoma) surgery
  • Micro-vascular decompression for trigeminal neuralgia
  • General Neurosurgery

Research Interests

  • Brain mapping with functional MRI, electrical stimulation and diffusion tractography
  • Intra-cranial electrophysiology


Publication Information

PEER Reviewed publications (* denotes publications by my students/post-Docs) Scopus Author ID 7101833763; ORCID 0000-0002-2752-2365

  1. Tandon N, Vollmer DG, New PZ, Hevezi JM, Herman T, Kagan-Hallet K, West GA.  Fulminant radiation-induced necrosis after stereotactic radiation therapy to the posterior fossa. Case report and review of the literature. Journal of Neurosurgery 95:507-512, 2001.
  2. Tandon N, Narayana S, Lancaster JL, Brown S, Dodd S, Vollmer DG, Ingham R, Ingham J, Liotti M, Fox PT. CNS Resident Award: Role of the lateral premotor cortex in articulation. Clinical Neurosurgery 50:341-349, 2003.
  3. Fox PT, Narayana S, Tandon N, Sandoval H, Fox SP, Kochunov P, JL Lancaster.  Column-based model of electric field excitation of cerebral cortex: Human Brain Mapping. 22(1): 1-14, 2004.
  4. Fox PT, Narayana S, Tandon N, Fox SP, Sandoval H, Kochunov P, Capaday C, Lancaster JL. Intensity modulation of TMS-induced cortical excitation: primary motor cortex. Human Brain Mapping 27(6): 478-87, 2006.
  5. Luders HO, Acharya J, Alexopoulos A, Baumgartner C, Bautista J, Burgess R, Carreno M, Diehl B, Dinner D, Ebner A, Foldvary N, Godoy J, Hamer H, Ikeda A, Kallen K, Kellinghaus C, Kotagal P, Lachhwani D, Loddenkemper T, Mani J, Matsumoto R, Moddel G, Nair D, Noachtar S, O’Donovan CA, Rona S, Rosenow F, Schuele S, Szabo CA, Tandon N, Tanner A, Widdess-Walsh P. Are epilepsy classifications based on epileptic syndromes and seizure types outdated? Epileptic Disorders 8(1): 81-5, 2006.
  6. Tandon N, O’Neill TJ, Vollmer DG, Wang M. Intra-ventricular occurrence of a melanocytoma: a case report. Journal of Neurosurgery 109:480-485, 2008
  7. Tandon N, Alexopoulos AV, Warbel A, Najm IM, Bingaman WE. Occipital Epilepsy: spatial categorization and surgical management. Journal of Neurosurgery 110(2) Feb 2009.
  8. *Ellmore TM, Beauchamp MS, O’Neill TJ, Dreyer SE, Tandon N. Relationships between Essential Cortical Language Sites and Subcortical Pathways: Journal of Neurosurgery. 111:755–766, Oct 2009 
  9. Swann N, Tandon N, Canolty R, Ellmore TE, McEvoy L, Dreyer SE, DiSano M, Aron AR – Intracranial EEG reveals time-specific and frequency-specific role for right inferior frontal gyrus and primary motor cortex in stopping initiated responses. Journal of Neuroscience • 29(40): 12675–12685, October 7, 2009
  10. *Ellmore TM, Beauchamp MS, Breier JI, Slater JD, Kalamangalam GP, O’Neill TJ, DiSano MA, Tandon N: Temporal Lobe White Matter Asymmetry and Language Laterality in epilepsy patients. Neuroimage. 2010 Feb 1; 49(3): 2033-44.
  11. *Ellmore TM, Pieters TA, Tandon N: Dissociation between Diffusion MR Tractography Density and Strength in Epilepsy Patients with Hippocampal Sclerosis. Epilepsy Research 93(2-3): 197-203, Feb 2011
  12. *Khursheed F, Tandon N, Tertel K, Pieters TA, Disano MA, Ellmore TM: Frequency-specific electrocorticographic correlates of working memory delay period fMRI activity. NeuroImage Jun 1; 56(3): 1773-82, 2011
  13. Kalamangalam GP, Tandon N, Saria HY, Slater JD: Asymmetric scalp EMG: A common and accurate lateralizing sign in motor seizures. Journal of Clinical Neurophysiology 28(5): 512-9, 2011
  14. *Conner CR, Ellmore TM, Pieters T, Tandon N: Variability of the Relationship between Electro-physiology and BOLD-fMRI across Cortical Regions in Humans. Journal of Neuroscience 31(36): 12855-65, 2011
  15. *Conner CR, Ellmore TM, DiSano MA, Pieters TA, Potter A, Tandon N: Comparative assessments of anatomic and electro-physiologic connectivity in the language system. Computers in Biology and Medicine 41(12): 1100-9, 2011
  16. Tertel K, Tandon N, Ellmore TM: Probing brain connectivity by combined analysis of diffusion MRI tractography and electrocorticography. Computers in Biology and Medicine 41(12): 1092-9, 2011
  17. Swann NC, Cai W, Conner CR, Pieters TA, Claffey MP, George JS, Aron AR, Tandon N: Roles for the pre-supplementary motor area and the right inferior frontal gyrus in stopping action: electro-physiological responses and functional connectivity. NeuroImage 59(3): 2860-70, 2012
  18. Narayana S, Laird AR, Tandon N, Franklin C, Lancaster JL, Fox PT. Electrophysiological and functional connectivity of the human supplementary motor area. Neuroimage. 62(1): 250-65, 2012
  19. Alexandrescu S, Brown RE, Tandon N, Bhattacharjee MB: Neuronal precursor features of spindle cell oncocytoma of adenohypophysis. Annals of Clinical & Laboratory Science, 42(2): 123-9, 2012
  20. Ellmore TM, Tertel K, Dias NR, Tandon N: Mapping subcortical connectivity related to cortical gamma and theta oscillations. 2012 IEEE Xplore, IEEE 2012.
  21. Watrous AJ, Tandon N, Conner CR, Pieters TA, Ekstrom AD: Frequency specific network dynamics underpin spatiotemporal memory retrieval. Nature Neuroscience 16(3): 349-56, Mar 2013
  22. *Pieters TA, Conner CR, TandonN: Recursive grid partitioning on a cortical surface model: An optimized technique for the localization of implanted subdural electrodes. Journal of Neurosurgery 118(5): 1086-97, May 2013
  23. Friedman ER, Tandon N: Beyond Mesial Temporal Sclerosis: Optimizing MRI Evaluation in Focal Epilepsy. NeuroGraphics, Volume 3, Number 2, pp. 60-69(10), June 2013.
  24. Esquenazi Y, Kerr K, Bhattacharjee MB, Tandon N. Traumatic rupture of an intracranial dermoid cyst: Case report and literature review. Surgical Neurology International Jun 12; 4:80, 2013
  25. Lin Y, Chen Y, Wang Y, Yang J, Zhu VF, Liu Y, Cui X, Chen L, Yan W, Jiang T, Hergenroeder GW, Fletcher SA, Levine JM, Kim DH, Tandon N, Zhu JJ, Li M. ZIP4 is a novel molecular marker for glioma. Neuro-Oncology. 15(8): 1008-16, Aug 2013
  26. Swann NC, Tandon N, Pieters TA, Aron AR: Intracranial EEG reveals dissociable roles for dorsal and ventro-lateral prefrontal cortex in preparing to stop action. Cerebral Cortex 23(10): 2479-88, Oct 2013
  27. Ritaccio A, Brunner P, Crone NE, Gunduz A, Hirsch LJ, Kanwisher N, Litt B, Miller K, Moran D, Parvizi J, Ramsey N, Richner TJ, Tandon N, Williams J, Schalk G. Proceedings of the Fourth International Workshop on Advances in Electrocorticography. Epilepsy and Behavior Nov 29(2): 259-68, 2013.
  28. Wessel JR, Conner CR, Aron AR, Tandon N. Chronometric electrical stimulation of right inferior frontal cortex increases motor braking. Journal of Neuroscience. 33(50): 19611-9, 2013.
  29. Tandon N, Esquenazi YE. Resection strategies in tumoral epilepsy: Is a lesionectomy enough? Epilepsia 2013 Dec; 54 Suppl 9:72-8.
  30. Tandon N, Esquenazi YE: A meta-analysis of the complications of SDE placement (letter to the Editor) Epilepsia 55(1): 195 Jan 2014.
  31. *Esquenazi YE, Kalamangalam GP, Slater JD, Knowlton RC, Friedman E, Aaron-Morris S, Shetty  A, Gowda A, Tandon N : Stereotactic laser ablation of epileptogenic periventricular nodular heterotopia. Epilepsy Research, Mar 108(3): 547-54, 2014
  32. *Conner CR, Chen G, Pieters TA, Tandon N: Category specific spatial dissociations of parallel processes underlying visual naming. Cerebral Cortex 24(10): 2741-50, 2014 PMID: 23696279
  33. *Esquenazi Y, Tandon N, Shank C, Bhattacharjee MB. Lipomatous Hemangiopericytoma of the Sellar Region: Case report and Review of the Literature. Annals of Clinical and Lab Science 44(1): 104-8, 2014 Winter, PMID: 24695483
  34. Kalamangalam GP, Tandon N, Slater JD. Dynamic mechanisms underlying after-discharges: A human subdural recording study. Clinical Neurophysiology Jul;125(7):1324-38, 2014. PMID: 24365519
  35. Barron D, Tandon N, Lancaster JL, Fox PT: Thalamic Connectivity in Medial Temporal Lobe Epilepsy  – Epilepsia Jun;55(6), 2014.PMID: 24802969
  36. LüdersHO, AminaS, BaileyC, Baumgartner C, BenbadisS, Bermeo A, Carreño M, Devereaux M, Diehl B, Eccher M, EdwardsJ, FastenauP, Baca-Vaca GF, GodoyJ, HamerH, HongSB, Ikeda A, KahaneP, KaiboriboonK, KalamangalamGP, LardizabalD, LhatooS, LüdersJ, Mani J, Mayor C, Latorre TM, MillerJ, MorrisH, NoachtarS, O’DonovanC, Park J, Perez-JimenezMA, RonaS, RosenowF, Shahid A, SchueleS, Skidmore C, SteinhoffB, Szabό CA, SweetJ, Tandon N, Tanner A, Tsuji S: Proposal: Different types of alteration and loss of consciousness in epilepsy. Epilepsia Aug;55(8):1140-4. 2014, PMID: 24981417
  37. *Kadipasaoglu CM, Baboyan VG, Conner CR, Chen G, Saad ZS, Tandon N: Surface-Based Mixed Effects Multilevel Analysis of Grouped Human Electro-Corticography. NeuroImage NeuroImage. 101:215-24, 2014. PMID: 25019677
  38. Kalamangalam GP, Cara L, Tandon N, Slater JD. An interictal EEG spectral metric for temporal lobe epilepsy lateralization. Epilepsy Res. 2014 Sep 16. [Epub ahead of print] PMID: 25270401
  39. So NK, Cole AJ, Tandon N, Slater JD, Smith MC: Neurostimulation for the treatment of epilepsy: the skeptical view. Neurology. 2014 Aug 26; 83(9): 847-9. PMID: 25156350
  40. Cole AJ, So NK, Tandon N, Slater JD, Smith MC: Judgment is not ignorance. Neurology. 2014 Aug 26; 83(9):847 PMID: 25156349
  41. Esquenazi Y, Savitz SI, Khoury RE, McIntosh MA, Grotta JC, Tandon N. Decompressive hemicraniectomy with or without clot evacuation for large spontaneous supratentorial intra-cerebral hemorrhages. Clinical Neurology and Neurosurgery. 128:117-22, 2015 PMID: 25496934
  42. Kadipasaoglu CM, Forseth K, Whaley M, Conner CR, Rollo MJ, Baboyan VG, Tandon N: Development of grouped icEEG for the study of cognitive processing. Frontiers in Psychology (in press), 2015
  43. Conner CR, Shouval HZ, Hickok G, Tandon N: Robust Transient Dynamics Underpin Lexical Selection in Broca’s Area (in re-review at PNAS)
  44. Kadipasaoglu CM, Conner CR, Tandon N: Network Dynamics of Human Face Perception (in review at Cerebral Cortex)


  1. Tandon N, Vollmer DG. Infections of the spine. In: Winn HR, ed. Youmans Neurological Surgery 5th edition. Philadelphia, PA: Saunders (Elsevier); Chap 285:4363-4394, 2004.
  2. Tandon N, Vollmer DG.  Posterior approaches to the cervical spine. In: Fessler R, Sekhar L, eds. Atlas of Neurosurgical Techniques: New York, NY: Thieme, 2006.
  3. Tandon N, Vollmer DG.  Cervical laminectomy. In: Fessler R, Sekhar L, eds. Atlas of Neurosurgical Techniques: New York, NY: Thieme, 2006.
  4. Tandon N, Vollmer DG. Cervical laminoplasty. In: Fessler R, Sekhar L, eds. Atlas of Neurosurgical Techniques: New York, NY: Thieme, 2006.
  5. Alexopoulos AV, Tandon N. Basal Frontal Lobe Epilepsy. In: Luders HO, ed. Textbook of Epilepsy Surgery. New York, NY, Informa HealthCare, 285-313, 2008.
  6. Tandon N. Cortical Mapping by Electrical Stimulation of Subdural Electrodes: Language areas. In: Luders HO, ed. Textbook of Epilepsy Surgery. New York, NY, Informa HealthCare, 1001-1015. 2008.
  7. Vollmer DG, Tandon N. Infections of the spine. In: Winn HR, ed. Youmans Neurological Surgery, 6th edition. Philadelphia, PA: Saunders (Elsevier); Chap 276, 2011
  8. Tandon N: Mapping of human language In: Yoshor and Mizrahi eds. Clinical Brain Mapping: A practical approach, McGraw Hill 2012.
  9. Esquenazi Y, Tandon N. Neuro-oncology. In Neurocritical Care Board Review: Questions and Answers, Editor: Asma Zakaria. Chapter 10. Pages 131-140. Demos Medical Publishing, New York
  10. Esquenazi Y, Tandon N. Perioperative neurosurgical care. In Neurocritical Care Board Review: Questions and Answers, Editor: Asma Zakaria. Chapter 13. Pages 175 – 182. Demos Medical Publishing, New York, 2013.