Physical Therapy Assistant Nicki C. Karlo holds NPI 1134136948 and works the rehabilitation side of the U.S. HealthWorks Medical Group occupational clinic at 3930 Fourth Ave Suite 200 in 92103. The PTA caseload here is dominated by California workers' compensation claims — lifting injuries, repetitive-strain wrist and shoulder cases, and post-injury return-to-work conditioning that flows downstream from the urgent care intake at Concentra in the same Fourth Avenue suite. Treatment sessions follow ACOEM guidelines for occupational injury rehabilitation, with documented functional capacity benchmarks driving modified-duty release notes back to the injured worker's employer. Surgical workers' comp cases, particularly rotator cuff repairs and lumbar fusions, are co-managed with orthopedic surgeons including Dr. Larry D. Dodge, MD across pre and post-operative phases of the claim. The clinic's most demanding files involve multi-body-part claims where carpal tunnel, cervical strain, and lumbar disc injury overlap on a single date of injury and require parallel rehabilitation tracks under one work-restriction calendar.