Triple-board-certified in Physical Medicine & Rehabilitation, Pain Medicine, and Sports Medicine, Jonathan Halperin, MD practices physiatry at La Mesa's Sharp Rees-Stealy campus on Grossmont Center Drive. Post-operative rehabilitation planning for patients discharged from Grossmont Surgery Center falls within Halperin's scope as a physiatrist who coordinates the non-surgical recovery arc—prescribing therapy frequency, bracing protocols, and return-to-activity timelines. A 1983 graduate of Queen's University Belfast Faculty of Medicine, Halperin has maintained Sharp Memorial Hospital affiliation for over four decades, building a referral network that spans the Grossmont area's orthopedic, neurological, and primary-care corridors. Electrodiagnostic workups for patients referred through the Kaiser Permanente system and community providers like Kaiser Permanente La Mesa Medical Offices use the same EMG and nerve-conduction-study suite to localize radiculopathy, carpal tunnel syndrome, and peripheral neuropathy before establishing a rehabilitation plan. Halperin utilizes fluoroscopy-guided spinal injections—epidural steroid, facet-joint, and sacroiliac blocks—to isolate pain generators and establish diagnostic clarity before committing patients to surgical versus conservative management pathways.