Skip to main content

Virtual visit appointments available 7 days a week from 9:00am to 11:00pm. Learn More

COVID-19 Updates

COVID-19 Updates: Get the latest on vaccine information, in-person appointments, virtual visits and more. Learn More


Texas Medical Center
Specialty Care

Diabetes and Endocrinology
Phone: 832-822-3670 (Main) | 281-494-7010 (Sugar Land)


Texas Children's Specialty Care Sugar Land
15400 Southwest Freeway
Suite 200
Sugar Land, TX 77478

Texas Children's Hospital - Main Campus
6701 Fannin Street
11th Floor
Houston, TX 77030

Aikaterini (Katerina) Nella, MD

Assistant Professor of Pediatrics, Baylor College of Medicine


School Education Degree Year
Eunice Kennedy Shriver National Institute of Child Health and Human Development Fellowship Pediatric Diabetes and Endocrinology 2014
Creighton-Nebraska Universities Health Foundation-University of Nebraska Medical Center College of Medicine Residency Pediatrics 2011
University of Nebraska Medical Center Postgraduate Education Postdoctoral Research Scholarship 2008
Aristotle University of Thessaloniki School of Medicine Medical School Doctor of Medicine 2004


I joined the faculty of Baylor College of Medicine/Texas Children’s Hospital in 2018. I previously served as an Assistant Professor of Pediatrics, Division of Pediatric Endocrinology at the University of Texas Medical Branch.
I highly value the privilege of serving my patients. I strive to provide state of the art medical care emphasizing compassion and personal interest for the patient’s well-being and quality of life.

Clinical Interests:

I have expertise in the diagnosis and treatment of common pediatric endocrine diseases, such as pediatric diabetes, thyroid, puberty and growth disorders, and congenital adrenal hyperplasia. I also have experience in the treatment of rare pediatric endocrine disorders, such as pediatric thyroid cancer, MEN syndromes, pheochromocytoma, lipodystrophies, Cushing and McCune-Albright syndromes.

Research Interests:

I have published my research work in prominent journals of my field and have been invited to present my research in national and international conferences. My current research interests include new treatments in congenital adrenal hyperplasia and mitochondrial dysfunction in insulin resistance states.


Organization Name Role
American Academy of Pediatrics Member
Endocrine Society Member
Pediatric Endocrine Society Member

Selected Publications

Mallappa A, Nella AA, Sinaii N, Rao H, Gounden V, Peritt AF, Kumar P, Ling A, Liu CY, Soldin SJ, Merke DP.. "Long-term Use of Continuous Subcutaneous Hydrocortisone Infusion Therapy in Patients with Congenital Adrenal Hyperplasia." Clin Endocrinol (Oxf).. 2018 October;89(4):399-407. Pubmed PMID: 30003563.

Mallappa A, Nella AA, Kumar P, Brooks KM, Perritt AF, Ling A, Liu CY, Merke DP. "Alterations in cortisol pharmacokinetics in a patient with congenital adrenal hyperplasia following bariatric surgery." J Endocr Soc. 2017 June 21;1(7):994-1001. Pubmed PMID: 29264549.

Nella AA, Mallappa A, Perritt AF, Gounden V, Kumar P, Sinaii N, Daley LA, Ling A, Liu CY, Soldin SJ, Merke DP. "A Phase 2 Study of Continuous Subcutaneous Hydrocortisone Infusion in Adults with Congenital Adrenal Hyperplasia." J Clin Endocrinol Metab 2016 December;101(12):4690-4698. Pubmed PMID: 27680873.

Debono M, Mallappa A, Gounden V, Nella AA, Harrison RF, Crutchfield CA, Backlund PS, Soldin SJ, Ross RJ, Merke DP. "Hormonal Circadian Rhythms in Patients with Congenital Adrenal Hyperplasia: Identifying Optimal Monitoring Times and Novel Disease Biomarkers." Eur J Endocrinol 2015 December;173(6):727-37. Pubmed PMID: 26340969.

Nella AA, Kaplowitz PB, Ramnitz MS, Nandagopal R.. "Benign vaginal bleeding in 24 prepubertal patients: clinical, biochemical and imaging features." J Pediatr Endocrinol Metab 2014 September;27((9-10)):821-5. Pubmed PMID: 24756050.

Nella AA, Lodish MB, Fox E, Balis FM, Quezado MM, Whitcomb PO, Derdak J, Kebebew E, Widemann BC, Stratakis CA. "Vandetanib successfully controls medullary thyroid cancer-related Cushing syndrome in an adolescent patient." J Clin Endocrinol Metab 2014 September;99(9):3055-9. Pubmed PMID: 24617713.

View All Publications

* Texas Children's Hospital physicians' licenses and credentials are reviewed prior to practicing at any of our facilities. Sections titled From the Doctor, Professional Organizations and Publications were provided by the physician's office and were not verified by Texas Children's Hospital.