1 EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- U.S. PT - Delaware, Inc. Corporation Delaware U.S. Therapy, Inc. dba The Facilities Group, Inc. Corporation Texas National Rehab GP, Inc. Corporation Texas National Rehab Delaware, Inc. Corporation Delaware U.S. PT - Michigan, Inc. Corporation Delaware HH Rehab Associates, Inc. dba Genesee Valley Physical Therapy dba Theramax Physical Therapy Corporation Michigan Professional Rehab Services, Inc. dba Northwoods Physical Therapy dba Thibodeau Physical Therapy Corporation Michigan U.S. Physical Therapy, Ltd. Limited Partnership Texas U.S. PT Management, Ltd. Limited Partnership Texas National Rehab Management GP, Inc. Corporation Texas Rehab Partners #1, Inc. Corporation Texas Rehab Partners #2, Inc. Corporation Texas Rehab Partners #3, Inc. Corporation Texas Rehab Partners #4, Inc. Corporation Texas Rehab Partners #5, Inc. Corporation Texas Rehab Partners #6, Inc. Corporation Texas U.S. PT Payroll, Inc. (formerly Rehab Partners #7, Inc.) Corporation Texas Rehab Partners Acquisition #1, Inc. Corporation Texas U.S. Surgical Partners, Inc. Corporation Delaware U.S. Surgical Partners #1, Inc. Corporation Texas Effingham Ambulatory Surgery Center, L.P. (formerly U.S. Surgical Partners of College Park, Limited Partnership Limited Partnership Texas U.S. Surgical Partners #2, Inc. Corporation Texas Midland Surgical Partners, Ltd. Limited Partnership Texas U.S. PT Turnkey Services, Inc. (formerly Surgical Management GP, Inc. Corporation Texas U.S. Surgical Partners Management, Ltd. Limited Partnership Texas 1 2 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Southeastern Hand Rehabilitation, Inc. dba Reist Hand Therapy dba Achieve Physical Therapy Corporation Florida Action Physical Therapy Clinic, Ltd. Limited Partnership Texas Cypresswood Physical Therapy Centre, Ltd. Limited Partnership Texas Progressive Physical Therapy Clinic, Ltd. Limited Partnership Texas Virginia Parc Physical Therapy, Ltd. dba McKinney Physical Therapy Associates Limited Partnership Texas Dearborn Physical Therapy, Ltd. dba Advanced Physical Therapy Limited Partnership Texas Saline Physical Therapy of Michigan, Ltd. dba Physical Therapy in Motion Limited Partnership Texas R. Clair Physical Therapy, Limited Partnership Limited Partnership Texas Roepke Physical Therapy, Limited Partnership Limited Partnership Texas Merrill Physical Therapy, Limited Partnership Limited Partnership Texas Genesee Valley Physical Therapy, Limited Partnership (canceled effective 5/13/98) Limited Partnership Texas Joan Ostermeier Physical Therapy, Limited Partnership dba Sport & Spine Clinic of Wittenberg Limited Partnership Texas Crossroads Physical Therapy, Limited Partnership Limited Partnership Texas Kelly Lynch Physical Therapy, Limited Partnership Limited Partnership Texas U.S. PT Michigan #1, Limited Partnership Limited Partnership Texas Spracklen Physical Therapy, Limited Partnership Limited Partnership Texas 2 3 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Bosque River Physical Therapy and Rehabilitation, Limited Partnership Limited Partnership Texas Frisco Physical Therapy, Limited Partnership Limited Partnership Texas Kingwood Physical Therapy, Ltd. Limited Partnership Texas Enid Therapy Center, Limited Partnership Limited Partnership Texas Dynamic Physical Therapy of Round Rock, Ltd. Limited Partnership Texas Active Physical Therapy, Limited Partnership Limited Partnership Texas Southwind Physical Therapy, Limited Partnership Limited Partnership Texas Genesis Rehabilitation and Sports Center - Jackson, Limited Partnership dba Genesis Physical Therapy Group Limited Partnership Texas Cleveland Physical Therapy, Ltd. Limited Partnership Texas Aquatic and Orthopedic Rehab Specialists, Limited Partnership Limited Partnership Texas Vileno Therapy of Treasure Coast, Limited Partnership Limited Partnership Texas Trussell Physical Therapy, Limited Partnership dba GenTech Industrial Physical Therapy Services (dissolved effective 3/31/98) Limited Partnership Texas Comprehensive Hand & Physical Therapy, Limited Partnership Limited Partnership Texas Tom Melko Physical Therapy, Limited Partnership Limited Partnership Texas Debra Dent Physical Therapy, Limited Partnership Limited Partnership Texas Hands Plus Therapy Center, Limited Partnership Limited Partnership Texas South Tulsa Physical Therapy, Limited Partnership Limited Partnership Texas 3 4 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Hands On Therapy, Limited Partnership Limited Partnership Texas U.S. PT Michigan #2, Limited Partnership Limited Partnership Texas First Choice Physical Therapy, Limited Partnership Limited Partnership Texas Tupelo Hand Rehabilitation, Limited Partnership Limited Partnership Texas The Hale Hand Center, Limited Partnership Limited Partnership Texas Sooner Physical Therapy, Limited Partnership Limited Partnership Texas Arrow Physical Therapy, Limited Partnership dba Broken Arrow Physical Therapy Limited Partnership Texas Achieve Physical Therapy, Limited Partnership Limited Partnership Texas Maine Physical Therapy, Limited Partnership Limited Partnership Texas Brentwood Physical Therapy, Limited Partnership Limited Partnership Texas Saginaw Valley Sport and Spine, Limited Partnership dba Saginaw Valley Sport & Spine, Bay City Sport & Spine and Midland Sport & Spine Limited Partnership Texas Brazos Valley Physical Therapy, Limited Partnership Limited Partnership Texas Plymouth Physical Therapy Specialists, Limited Partnership Limited Partnership Texas Brick Hand & Rehabilitative Services, Limited Partnership Limited Partnership Texas Heartland Physical Therapy, Limited Partnership Limited Partnership Texas Bay View Physical Therapy, Ltd. dba Pine State Physical Therapy Limited Partnership Texas Rio Grande Physical Therapy, Limited Partnership (closed effective 07/27/2000) Limited Partnership Texas 4 5 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Thomas Hand and Rehabilitation Specialists, Limited Partnership dba Thomas Physical & Hand Therapy dba Thomas Hand Institute Limited Partnership Texas Excel Occupational and Physical Therapy, Limited Partnership (closed effective 01/31/2000) Limited Partnership Texas Hand Health and Rehabilitation, Limited Partnership Limited Partnership Texas Flannery Physical Therapy, Limited Partnership dba Physical Therapy Plus Limited Partnership Texas Port City Physical Therapy, Limited Partnership Limited Partnership Texas Proactive Physical Therapy, Limited Partnership Limited Partnership Texas All Brunswick Physical Therapy, Limited Partnership Limited Partnership Texas Penobscot Sports Associates, Limited Partnership Limited Partnership Texas Mooresville Management, Limited Partnership Limited Partnership Texas Beaufort Physical Therapy, Limited Partnership Limited Partnership Texas English Creek Hand & Therapy Center, Limited Partnership Limited Partnership Texas Brownwood Physical Therapy, Limited Partnership dba Pecan Valley Physical Therapy Limited Partnership Texas Quantum Physical Therapy, Limited Partnership (formerly Abbott & Baird Physical Therapy Associates, Limited Partnership) Limited Partnership Texas Spine & Sport Physical Therapy, Limited Partnership dba The Hand Institute of Spine & Sport (formerly Southern Orthopaedic & Sports Physical Therapy, Limited Partnership) Limited Partnership Texas 5 6 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Norman Physical Therapy, Limited Partnership Limited Partnership Texas Rice Rehabilitation Associates, Limited Partnership Limited Partnership Texas Physical Therapy and Spine Institute, Limited Partnership Limited Partnership Texas Forest City Physical Therapy, Limited Partnership Limited Partnership Texas Leader Physical Therapy, Limited Partnership dba Memphis Physical Therapy Limited Partnership Texas Functions by Fletchall, Limited Partnership Limited Partnership Texas Coastal Physical Therapy, Limited Partnership Limited Partnership Texas Greene County Physical Therapy, Limited Partnership Limited Partnership Texas Eastgate Physical Therapy, Limited Partnership dba Summit Physical Therapy Limited Partnership Texas Tennessee Valley Physical Therapy, Limited Partnership Limited Partnership Texas C.A.R.E. Physical Therapy Center, Limited Partnership (closed effective 03/31/99; partnership canceled 04/15/99) Limited Partnership Texas Ankeny Physical & Sports Therapy, Limited Partnership Limited Partnership Texas Twin Cities Physical Therapy, Limited Partnership Limited Partnership Texas Brem Physical Therapy Associates, Limited Partnership (closed effective 05/31/99) Limited Partnership Texas Penn's Wood Physical Therapy, Limited Partnership Limited Partnership Texas Regional Physical Therapy Center, Limited Partnership Limited Partnership Texas Wyman Physical Therapy, Limited Partnership Limited Partnership Texas 6 7 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Adams County Physical Therapy, Limited Partnership Limited Partnership Texas Coppell Spine & Sports Rehab, Limited Partnership dba Physical Therapy of Flower Mound dba Green Oaks Physical Therapy Limited Partnership Texas Julie Emond Physical Therapy, Limited Partnership dba Maple Valley Physical Therapy Limited Partnership Texas City of Lakes Physical Therapy, Limited Partnership Limited Partnership Texas Radtke Physical Therapy, Limited Partnership Limited Partnership Texas Hoeppner Physical Therapy, Limited Partnership Limited Partnership Texas Des Moines Physical Therapy, Limited Partnership Limited Partnership Texas Shrewsbury Physical Therapy, Limited Partnership Limited Partnership Texas Heritage Physical Therapy, Limited Partnership Limited Partnership Texas Mansfield Physical Therapy, Limited Partnership Limited Partnership Texas Flint Physical Therapy, Limited Partnership Limited Partnership Texas Pelican State Physical Therapy, Limited Partnership dba Audubon Physical Therapy Limited Partnership Texas Airpark Physical Therapy, Limited Partnership dba Philadelphia Physical Therapy (formerly Therapy Partners, Limited Partnership which was formerly North Hills Physical Therapy, Limited Partnership) Limited Partnership Texas Capital Hand and Physical Therapy, Limited Partnership Limited Partnership Texas Maines & Dean Physical Therapy, Limited Partnership Limited Partnership Texas 7 8 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Edge Physical Therapy, Limited Partnership dba River's Edge Physical Therapy Limited Partnership Texas Laurel Physical Therapy, Limited Partnership dba South Mississippi Physical Therapy Limited Partnership Texas Riverwest Physical Therapy, Limited Partnership Limited Partnership Texas Scott Black Physical Therapy, Limited Partnership dba Northern Neck Physical Therapy Limited Partnership Texas Mountain View Physical Therapy, Limited Partnership Limited Partnership Texas Intermountain Physical Therapy, Limited Partnership Limited Partnership Texas Staunton Hand & Rehab Services, Limited Partnership Limited Partnership Texas White Mountain Physical Therapy, Limited Partnership Limited Partnership Texas Battle Physical Therapy, Limited Partnership Limited Partnership Texas Covington Rehabilitation and Hand Therapy, Limited Partnership dba South Mississippi Physical Therapy Limited Partnership Texas Crawford Physical Therapy, Limited Partnership Limited Partnership Texas Mobile Spine and Rehabilitation, Limited Partnership Limited Partnership Texas University Physical Therapy, Limited Partnership Limited Partnership Texas Oregon Spine & Physical Therapy, Limited Partnership Limited Partnership Texas Audubon Physical Therapy, Limited Partnership Limited Partnership Texas Bow Physical Therapy & Spine Center, Limited Partnership Limited Partnership Texas Caldwell Management, Limited Partnership Limited Partnership Texas 8 9 SUBSIDIARIES OF THE REGISTRANT STATE OF NAME OF TYPE OF INCORPORATION SUBSIDIARY ENTITY OR FORMATION - ---------- ------- ------------- Southeast Boise Management, Limited Partnership Limited Partnership Texas North Shore Sports & Physical Therapy, Limited Partnership Limited Partnership Texas Performance and Sports Medicine, L.P, dba Center for Performance & Sports Medicine Excellence Limited Partnership Texas Sport & Spine Clinic, L.P. Limited Partnership Texas Physical Therapy & Rehab Ctr., L.P. (dissolved effective 12/31/98) Limited Partnership Texas 9