Tonya R. Henderson, MD, practices pediatrics on the second floor of Sharp Rees-Stealy Santee at 8701 Cuyamaca Street, bringing a Northwestern University medical education and Children's Memorial Hospital residency to Santee's Cuyamaca Street medical corridor. Her clinical focus areas include pediatric asthma management, esophageal reflux evaluation, and growth-pattern monitoring, with in-house bloodwork processed through Sharp Rees-Stealy Santee Laboratory on the building's first floor. Hospital affiliations with Sharp Memorial Hospital and Sharp Mary Birch Hospital for Women & Newborns provide admitting privileges for neonatal and pediatric inpatient cases across the Sharp system. Early dental referrals for developing-dentition concerns route to pediatric-focused practices on Cuyamaca Street, including Santee Children's Dentistry at 9450 Cuyamaca Street. The Northwestern-trained pediatric background spans more than 30 years of clinical practice covering newborn circumcision, failure-to-thrive evaluation, and reactive airway disease protocol management.