Nidia Rodriguez-Ormaza, MD, PhD, MPH

Senior Biostatistician

Nidia is a physician, epidemiologist, and public health advocate. She received her PhD in Epidemiology from the University of North Carolina at Chapel Hill in 2022 and joined QSU in 2023. Nidia has comprehensive experience in various healthcare systems and academic settings, including clinical practice in primary care and rural health, teaching, and collaborative research with a public health focus. She’s interested in applying epidemiologic methods to health services research and using observational and contextual data to inform policy and improve patient care and health systems from a health equity and spatial justice perspective.

Methodological areas interest: Epidemiologic methods, causal inference, observational study designs, clinical trial designs, healthcare databases, GIS in public health, data visualization.

Substantive areas of interest: Medicine, access to healthcare, healthcare utilization, clinical epidemiology, vaccine epidemiology, cancer epidemiology, pharmacoepidemiology, outcomes research, survivorship.


1.     Meernik C, Engel SM, Wardell A, Baggett CD, Gupta P, Rodriguez-Ormaza N, Luke B, Baker VL, Wantman E, Rauh-Hain JA, Mersereau JE, Olshan AF, Smitherman AB, Cai J, Nichols HB. Disparities in fertility preservation use among adolescent and young adult women with cancer. J Cancer Surviv. 2022 Feb 16.

2.     Herb J, Rodriguez-Ormaza N, Cunningham C, Bartl N, Jadi J, Charles A, Reid T. Gastrostomy Tube Outcomes Among Surgical and Non-Surgical Services: A Retrospective Review. Am Surg. 2021 Sep 27.

3.     Jadi J, Hyder S, Rodriguez Ormaza NP, Twer E, Phillips M, Akinkuotu A, Reid TD. Evaluation of Complications and Weight Outcomes in Pediatric Cerebral Palsy Patients With Gastrostomy Tubes. Am Surg. 2021 Jul 28.

4.     Reid T, Grudziak J, Rodriguez-Ormaza N, Maine RG, Msiska N, Quinsey C, Charles A. Complications and 3-month outcomes of children with hydrocephalus treated with ventriculoperitoneal shunts in Malawi. J Neurosurg Pediatr. 2019 May 10;24(2):120-127.

5.     Mazul AL, Shivappa N, Hébert JR, Steck SE, Rodriguez-Ormaza N, Weissler M, Olshan AF, Zevallos JP. Proinflammatory diet is associated with increased risk of squamous cell head and neck cancer. Int J Cancer. 2018 Oct 1;143(7):1604-1610.

6.     Mazul AL, Rodriguez-Ormaza N, Taylor JM, Desai DD, Brennan P, Anantharaman D, Gheit T, Tommasino M, Abedi-Ardekani B, Olshan AF, Zevallos JP. Prognostic significance of non-HPV16 genotypes in oropharyngeal squamous cell carcinoma. Oral Oncol. 2016 Oct;61:98-103.

7.     Zevallos JP, Mazul AL, Rodriguez N, Weissler MC, Brennan P, Anantharaman D, Abedi-Ardekani B, Neil Hayes D, Olshan AF. Previous tonsillectomy modifies odds of tonsil and base of tongue cancer. Br J Cancer. 2016 Mar 29;114(7):832-8.