One Call is a provider of healthcare solutions for the workers'​ compensation industry. As a provider of specialized cost containment services to the workers’ compensation industry, clients can count on One Call Care Management to reduce the headaches and hassles and help them achieve a faster, more efficient, and more cost-effective resolution of claims. From high-end diagnostic procedures to transportation and language services, to superior dental programs and other medical specialties. With OCCM, clients are assured of the highest quality and most cost-effective services from impeccably credentialed providers. in 1985, Liz Griggs headquartered the company in Jacksonville, Florida.