Rehab United in Chula Vista delivers physical therapy from 3450 Bonita Road, a clinic that joined the Rehab United network through its acquisition of Ed Ayub Physical Therapy and now serves the Bonita community as one of three San Diego County locations. The Applied Functional Science (AFS) methodology drives all treatment protocols, addressing root biomechanical causes rather than isolated symptoms — a whole-body assessment approach that parallels the structural-correction focus at American Chiropractic Services for patients with overlapping spinal and extremity dysfunction. Beyond standard orthopedic rehabilitation, the clinic offers vestibular therapy for dizziness and balance disorders, pelvic-health physical therapy, custom orthotic fabrication, dry needling, and on-site acupuncture. VA-referred patients make up a documented portion of the caseload, with return-to-function protocols that transition veterans from clinical care into maintenance-phase conditioning at community fitness centers such as Namaste Fitness Otay Ranch. The clinic's custom orthotics program uses dynamic gait analysis on a pressure-mapping treadmill to capture plantar force distribution data, fabricating corrective insoles that address pronation, supination, and metatarsal-load imbalances specific to each patient's kinetic chain.