Sharp Rees-Stealy Otay Ranch Laboratory in Chula Vista's Eastlake area occupies the first floor of the 1400 East Palomar Street medical center, serving the rapidly growing communities east of I-805. The lab processes pre-treatment bloodwork for dental and oral surgery patients at Dental Group Palomar, which requires coagulation panels and platelet counts before invasive procedures. An $86 million expansion completed in April 2025 nearly doubled the Otay Ranch medical center's footprint to approximately 120,000 square feet, adding a two-story medical office building with advanced radiology services and an urgent care center. Post-operative rehabilitation patients monitored at Performance Plus Physical Therapy - Otay Ranch coordinate follow-up lab draws at this location for inflammatory marker tracking and medication-level testing. The expanded facility houses next-generation automated chemistry analyzers and a specimen-processing workflow integrated with Sharp's system-wide electronic health record, supporting same-day result delivery for over 200 test codes.