Generations of patients from Central Illinois including McLean, Livingston, DeWitt, Logan, Woodford, and Tazewell counties and the surrounding areas have relied on the experienced urologists at Chalian, Leak & Catarinicchia Urology - Premier Medical Group, LLC for their urologic care. Drs. Chalian and Leak strive to continue the tradition of excellence in urologic care that has been ...Contact Us‧Testicle Services‧Physicians‧Locations‧Insurance‧Pediatric Urology.