S. Alex Rottgers, M.D.

Dr. Gan specializes in pediatric endocrinology for Johns Hopkins All Children’s Hospital. She generally works at the Outpatient Care Brandon and Tampa locations and through the hospital’s relationships with AdventHealth Tampa and Brandon Regional Hospital...

Dr. Santiago is the chief of pediatric rheumatology in the Johns Hopkins All Children’s Hospital. She sees patients at the hospital’s main campus in St. Petersburg, Florida. She joined the hospital staff in 2013. Dr. Santiago earned her doctor of medicine, cum laude, at the Universidad Central Del Caribe in Bayamon, Puerto Rico, where she was inducted into the Alpha Omega Alpha honor medical society. She completed her pediatric residency at Nicklaus Children’s Hospital in Miami and her pediatric rheumatology fellowship at McGaw Medical Center of Northwestern University Ann & Robert H. Lurie Children’s Hospital of Chicago. She is the rheumatology rotation director for the Johns Hopkins All Children’s residency program and oversees the educational programs of the rheumatology division. She also serves as medical co-director of the Johns Hopkins All Children’s infusion center and on the advisory board of the Johns Hopkins All Children’s Hospital Women in Medicine and Science Committee. Her areas of clinical expertise include systemic lupus erythematosus, vasculitis, juvenile dermatomyositis, scleroderma, juvenile idiopathic arthritis, Sjogren’s syndrome, periodic fever syndromes, and other systemic inflammatory diseases. Dr. Santiago is a bilingual qualified staff speaker in Spanish.

Dr. Metts specializes in pediatric hematology/oncology in the Johns Hopkins All Children's Cancer & Blood Disorders Institute. He sees patients on our main campus in St. Petersburg and at the Johns Hopkins All Children’s Outpatient Care Center in Tampa. He joined the hospital in 2016. He received his medical degree from the University of South Carolina School of Medicine and completed an internship and residency in pediatrics at Johns Hopkins All Children’s Hospital through the University of South Florida Morsani School of Medicine. Dr. Metts then trained at Emory University School of Medicine as a pediatric hematology/oncology fellow. His clinical interests include sarcomas, rare solid tumors, and Phase 1 and Phase 2 trials for pediatric solid tumors.