Naim Maalouf, M.D.

Naim Maalouf, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center and a member of its Division of Endocrinology. He specializes in the medical evaluation and management of kidney stones, parathyroid disorders, osteoporosis, bone health in breast cancer, and other mineral metabolism disorders.

He is the Associate Director of The Charles and Jane Pak Center for Mineral Metabolism and Clinical Research at UTSW.

Dr. Maalouf holds a bachelor's degree in chemistry from American University of Beirut, where he also earned his medical degree. He completed internal medicine residency training at Emory University in Atlanta, followed by advanced training in endocrinology and metabolism through a fellowship at UT Southwestern.

Certified by the American Board of Internal Medicine, he joined the UT Southwestern faculty in 2004.

Dr. Maalouf’s research spans the pathophysiology, prevention, and treatment of kidney stone disease, with a focus on calcium phosphate, calcium oxalate, and uric acid stones. He investigates novel therapies such as hydroxycitrate, the metabolic and dietary contributors to stone formation—including protein intake, obesity, and weight loss—and the development of advanced methods to monitor stone progression. His work also includes optimizing fluid therapy and stent management in both adults and children with nephrolithiasis. Beyond kidney stones, Dr. Maalouf explores broader metabolic and systemic health issues, including the effects of reversing hyperuricemia on metabolic syndrome, the role of renal lipotoxicity in uric acid stone formation, vitamin D’s relationship with type 2 diabetes, the determinants of bone health in HIV-infected individuals and people with cystic fibrosis, and complications of primary hyperparathyroidism, reflecting a comprehensive interest in mineral metabolism and endocrine-related disorders.

He has been awarded several National Institutes of Health grants and is the principal investigator for the Urinary Stone Disease Research Network site at UT Southwestern. He has delivered scores of presentations and published numerous academic articles.

Dr. Maalouf is on the editorial board of Urolithiasis and is a member of several professional organizations, including the American Association of Clinical Endocrinologists, the American Society for Bone and Mineral Research, and the Endocrine Society.

Among his many accolades, Dr. Maalouf earned the Jean D. Wilson Award for Excellence in Scientific Mentorship from the UT Southwestern Division of Endocrinology.