Sharp Rees-Stealy La Mesa occupies a five-floor multi-specialty medical center on Grossmont Center Drive, delivering more than 20 departments to La Mesa, Mt Helix, Santee, and Spring Valley residents near Sharp Grossmont Hospital. On-site departments span cardiology, endocrinology, ENT, general surgery, hematology-oncology, neurology, OB-GYN, orthopedics, and podiatry — a depth that generates post-surgical and post-cancer-treatment transitions into skilled nursing, with Arbor Hills Nursing Center absorbing many of those La Mesa sub-acute placements. First-floor radiology houses MRI, CT, ultrasound, digital X-ray, and screening mammography, with same-day reads feeding directly into specialist appointments on the floors above. The on-site urgent care division triages non-emergent acute conditions for East County patients, providing a walk-in alternative to emergency department visits at Sharp Grossmont Hospital across the campus. Discharge coordination from surgical and oncology departments channels patients into home-based recovery pathways, with Home Instead providing post-procedure companion care and medication-reminder support for La Mesa's senior population. Highest-complexity workflows include MRI-guided biopsy coordination between radiology and hematology-oncology, multi-vessel cardiac catheterization referral through the cardiology suite, and post-thyroidectomy calcium-level monitoring managed by the endocrinology team across consecutive floors.