Exhibit 21.1
Subsidiaries of the Registrant
The Registrant has the following wholly-owned subsidiaries:
| 1. | CRH Medical Corporation |
| 2. | CRH Anesthesia Management LLC |
| 3. | Gastroenterology Anesthesia Associates LLC |
| 4. | NC GAA, PC |
| 5. | CRH GAA PLLC |
| 6. | CRH Anesthesia of Gainesville LLC |
| 7. | CRH Anesthesia of Florida LLC |
| 8. | CRH Anesthesia of Cape Coral LLC |
| 9. | CRH Anesthesia of Knoxville LLC |
| 10. | CRH Anesthesia of Colorado, LLC |
| 11. | Alamo Sedation Associates LLC |
| 12. | Shreveport Sedation Associates, LLC |
| 13. | CRH Anesthesia of Ohio, LLC |
| 14. | CRH GAA of Washington, PLLC |
| 15. | Lake Erie Sedation Associates LLC |
| 16. | Anesthesia Care Associates LLC |
The Company also holds ownership interests in the following subsidiaries:
| 1. | Macon Gastroenterology Anesthesia Associates LLC |
| 2. | Knoxville Gastroenterology Anesthesia Associates LLC |
| 3. | Austin Gastroenterology Anesthesia Associates PLLC |
| 4. | Greater Boston Anesthesia Associates PLLC |
| 5. | Arapahoe Gastroenterology Anesthesia LLC |
| 6. | Osceola Gastroenterology Anesthesia Associates LLC |
| 7. | DDAB LLC |
| 8. | West Florida Anesthesia Associates LLC |
| 9. | Central Colorado Anesthesia Associates LLC |
| 10. | Raleigh Sedation Associates LLC |
| 11. | Western Ohio Sedation Associates, LLC |
| 12. | Lake Washington Anesthesia Associates, LLC |
| 13. | Tennessee Valley Anesthesia Associates, LLC |
| 14. | Triad Sedation Associates, LLC |
| 15. | South Metro Anesthesia Associates, LLC |
| 16. | Crystal River Anesthesia Associates, LLC |
| 17. | Florida Panhandle Anesthesia Associates, LLC |