Indiana pain medicine expert witnesses assess complex pain conditions and interventional treatment decisions across Indiana hospitals and outpatient spine and pain clinics. Many are board-certified anesthesiologists or physiatrists with subspecialty focus in interventional pain, neuromodulation, and opioid stewardship, often affiliated with IU Health and other regional systems. They evaluate standards of care, causation, impairment, and treatment appropriateness for chronic pain and injury-related cases.