Dr Estylan Arellano, DO provides emergency medicine care at Sharp Grossmont Hospital in La Mesa's Grossmont area. His osteopathic training from the Edward Via College of Osteopathic Medicine Virginia, completed in 2007, brings a musculoskeletal-informed approach to acute injury assessment that complements post-discharge rehabilitation pathways at facilities such as Grossmont Orthopedic Physical Therapy. Dr Arellano holds ABEM board certification in emergency medicine and practices within the hospital's ACEP Gold Standard Level 1 geriatric-accredited emergency department, only the second ED in California to earn that designation. His DO credential integrates osteopathic manipulative treatment principles into emergency evaluations of spinal trauma and joint dislocations, a diagnostic framework shared by musculoskeletal specialists including La Mesa Spine Center on the outpatient side. Technicians under his direction utilize portable digital radiography and bedside ultrasonography for rapid fracture identification and internal hemorrhage screening across the 562-bed hospital's emergency department.