For pediatric care in Chula Vista's Otay Ranch district, Jershonda F. Hartsfield, MD is a board-certified pediatrician at Sharp Rees-Stealy Otay Ranch on East Palomar Street. A UCLA David Geffen School of Medicine graduate from the class of 2002, she completed her residency at Children's Hospital of Orange County and focuses on growth problems, nutrition, and weight management — conditions where behavioral dimensions often involve counselors such as Holly Bates, Counselor. Bilingual English-Spanish consultations serve the 91913 Eastlake corridor, and affiliations with Sharp Mary Birch Hospital for Women and Newborns and Sharp Memorial Hospital provide neonatal-to-adolescent referral continuity. The Sharp Rees-Stealy integrated campus model delivers same-day sick visits, well-child checks, and telehealth appointments, with complementary wellness pathways for pediatric patients extending to providers including South Bay Family Acupuncture. Highest-acuity protocols include failure-to-thrive workups with caloric-intake analysis and growth-velocity plotting against WHO z-score curves, pediatric obesity intervention using BMI percentile tracking with staged behavioral modification, and newborn metabolic screening interpretation for congenital hypothyroidism and phenylketonuria.