It has 18 hospitals as well as more than 200 clinics, nursing homes, and outpatient services. Cedars-Sinai Health System - Cedars-Sinai Health System is a Los Angeles-based healthcare provider that is known for its quality of care. With over 1,200 healthcare facilities across the country, the VA provides care to over 9 million veterans every year. The biggest hospital in the USA is the University of Pittsburgh Medical Center Presbyterian Shadyside. One of the finest hospital systems in the US as a result of its emphasis on quality in patient care, education, and research. Every minute you spend on medical coding and billing takes time away from providing care for your patients.