Exhibit 21.1
Name of Subsidiary | State of Formation | % Ownership | ||||
Urology Associates of North Texas, PLLC | Texas | 100.0000 | % | |||
The Medical Clinic of North Texas, Inc. | Texas | 100.0000 | % | |||
Impel Management Services, L.L.C. | Texas | 100.0000 | % | |||
Impel Consulting Experts, LLC | Texas | 100.000 | % | |||
Rocky Mountain Medical Center, L.P. | Texas | 0.8800 | % | |||
Surgery Center of Waxahachie, LP | Texas | 4.5100 | % | |||
Mat-Rx Development, LLC d/b/a USMD Hospital Division | Texas | 100.0000 | % | |||
USMD of Arlington GP, LLC | Texas | 100.0000 | % | |||
U.S. Lithotripsy, L.P. d/b/a USMD Lithotripsy Division | Texas | 100.0000 | % | |||
USMD Cancer Treatment Centers, LLC | Texas | 100.0000 | % | |||
USMD Diagnostic Services, LLC | Texas | 100.0000 | % | |||
USMD Inc. | Texas | 100.0000 | % | |||
Mat-Rx Fort Worth GP, LLC | Texas | 100.0000 | % | |||
USMD Administrative Services, LLC | Texas | 100.0000 | % | |||
USGP, LLC | Texas | 100.0000 | % | |||
Litho GP, LLC | Texas | 100.0000 | % | |||
Big Country II Lithotripsy, L.P. | Texas | 18.1818 | % | |||
Dallas Stone Management, L.P. | Texas | 16.9230 | % | |||
Ironwood II Stone Management, L.P. | Texas | 4.5456 | % | |||
Central Michigan Stone Management, L.P. | Texas | 8.3333 | % | |||
Metro I Stone Management, Ltd. | Texas | 100.0000 | % | |||
Midland Stone Management, L.P. | Texas | 10.0000 | % | |||
Mississippi Valley I Stone Management, L.P. | Oklahoma | 10.9780 | % | |||
White River Lithotripsy, L.P. | Arkansas | 12.7273 | % | |||
Western Plains II Lithotripsy, L.P. | Texas | 10.0000 | % | |||
North Central Missouri III Lithotripsy, L.P. | Texas | 8.7900 | % | |||
North Texas Stone Management, L.P. | Texas | 40.0000 | % | |||
Verrazano Lithotripsy, L.P. | Texas | 10.0000 | % | |||
East Texas II – Athens, L.P. | Texas | 10.0000 | % | |||
East Texas II – Longview, L.P. | Texas | 10.0000 | % | |||
S.E. Colorado Lithotripsy, L.P. | Texas | 7.5000 | % | |||
Kenai Lithotripsy, L.P. | Alaska | 10.0000 | % | |||
Metro Houston Lithotripsy II, L.P. | Texas | 10.0000 | % | |||
Houston II Lithotripsy, L.P. | Texas | 8.4870 | % | |||
Gateway II Lithotripsy, LLC | Missouri | 3.4482 | % | |||
Rio Grande Lithotripsy, L.P. | Texas | 10.0000 | % | |||
South Texas Lithotripsy, L.P. | Texas | 14.1210 | % | |||
USMD Hospital at Arlington, L.P. | Texas | 45.3959 | % | |||
USMD Hospital at Ft. Worth, L.P. | Texas | 30.8765 | % | |||
Anchorage Cancer Treatment Center, LLC | Alaska | 20.0000 | % | |||
MXMD Centros De Cancer, S. De R.L. De C.V. | Mexico City, F.D., Mexico | 50.0000 | % | |||
Christus Meguerza Radio Terapia Avanzada, S.D. R.L. De C.V. | Nuevo Leon, Mexico | 34.0000 | % | |||
Yorktown Center for Radiation Oncology Services, L.L.C. | New York | 40.0000 | % | |||
USMD Affiliated Services* | Texas |