Complex sentence: The deal added 67 more surgery centers including 10 more that were under development to HealthSouth, and made HealthSouth the largest provider of outpatient surgery in the United States with a total of 122 surgery centers.
Split into simpler sentences: The deal added 67 more surgery centers including 10 more that were under development. The acquisition made HealthSouth the largest provider of outpatient surgery in the nation with a total of 122 surgery centers.