After additional postdoctoral studies at the Medical College of Wisconsin, he became board certified by The American Board of Preventive Medicine in Occupational Medicine.
Dr. Cheshire has practiced in outpatient clinic settings, onsite employer clinics and been on staff at Hoag Hospitals Health system for 28 years. He opened ProCare in Irvine in 2006 as the clinic rapidly expanded. As an integral part of his practice, he has treated employees from and consulted on health and safety issues with large and small private employers, public agencies and health care facilities.
He is certified as a Qualified Medical Evaluator in California. As ProCare's Chief Medical Officer, he oversees all clinical programs from pre-employment and Department of Transportation drug and alcohol testing programs to adherence to MTUS treatment guidelines for the evaluation and treatment of injured workers in the State of California.