List of Gastroenterology (GI) / Endoscopy Centers, Rheumatology, Neurology Practices in the U.S.

I need a list of Gastroenterology (GI) / Endoscopy Centers, Rheumatology, Neurology Practices in the U.S. that meet the following criteria:
1. Located in the following U.S. states: Texas, Georgia, Florida, Alabama, Missouri, North Carolina, South Carolina, Kansas, Louisiana, Illinois.
2. These specific facilities in the above states the utilize the services of Stericycle medical waste disposal.