EXHIBIT 21.1 SUBSIDIARIES OF THE COMPANY Jurisdiction of Name Structure Incorporation -------------------------------------------------------- ------------------------ --------------- Sociedad de Assisi S.r.l. responsibilidad limitada (6) Astro, Hobby, West Mt., Renal Care Ltd. Partnership Limited Partnership DE Bay Area Dialysis Partnership Partnership CA Sociedad de Beta Dial S.r.l. responsibilidad limitada (6) Beverly Hills Dialysis Partnership Partnership CA Burbank Dialysis Partnership Partnership CA Capital Dialysis Partnership Partnership CA Carroll County Dialysis Facility, Inc. Corporation MD Carroll County Dialysis Facility Limited Partnership Limited Partnership MD Sociedad de Cercos S.r.l. responsibilidad limitada (6) Continental Dialysis Center, Inc. Corporation VA Continental Dialysis Center of Springfield-Fairfax, Inc. Corporation VA Crescent City Dialysis Partnership Partnership LA Limited Liability Crystal River Dialysis, LLC Company FL Dallas Specialists of Dallas, Inc. Corporation TX Limited Liability Dialysis Treatment Centers of Macon, LLC Company GA Sociedad de Due Torri S.r.l. responsibilidad limitada (6) East End Dialysis Center, Inc. Corporation VA Eastmont Partnership Partnership CA Eaton Canyon Dialysis Partnership Partnership CA Elberton Dialysis Center, Inc. Corporation GA Enfermedades Renales--Centro de Dialisis S.A. Sociedad Anonima (2) Sociedad de Enne E S.r.l. responsibilidad limitada (6) Flamingo Park Kidney Center, Inc. Corporation FL Garey Dialysis Center Partnership Partnership CA Guam Renal Care Partnership Partnership GU Guam Renal Management Partnership Partnership GU Houston Kidney Center/Total Renal Care Integrated Services Network, LP Limited Partnership DE Limited Liability Hutchinson Dialysis, L.L.C. Company KS Instituto Privado de Nefrologia S.A. Sociedad Anonima (7) Instituto Renal Tucuman S.A. Sociedad Anonima (4) Sociedad de Irno Dial S.r.l. responsibilidad limitada (6) Kenner Regional Dialysis Partnership Partnership LA Lincoln Park Dialysis Services, Inc. Corporation IL SUBSIDIARIES OF THE COMPANY--(Continued) Jurisdiction of Name Structure Incorporation ----------------------------------------------------- ------------------------ --------------- Los Angeles Dialysis Center Partnership CA Mason-Dixon Dialysis Facilities, Inc. Corporation MD Moncrief Dialysis Center/Total Renal Care, LP Limited Partnership DE Sociedad de Nedial S.r.l. responsibilidad limitada (6) Sociedad de Nedial Napoli S.r.l. responsibilidad limitada (6) Sociedad de Nefrologia S.r.l. responsibilidad limitada (6) Sociedad de II Nefrologia S.r.l. responsibilidad limitada (6) Nefrologia Escobar S.A. Sociedad Anonima (3) Sociedad de New Dial S.r.l. responsibilidad limitada (6) Sociedad de Omnia Dial S.r.l. responsibilidad limitada (6) Open Access Sonography, Inc. Corporation FL Pacific Coast Dialysis Center Partnership CA Pacific Dialysis Partnership Partnership GU Peninsula Dialysis Center, Inc. Corporation VA Peralta Renal Center Partnership Partnership CA Piedmont Dialysis Partnership Partnership CA Renal Diagnostic Laboratories, Inc. Corporation DE Renal Treatment Centers, Inc. Corporation DE Renal Treatment Centers--California Corporation DE Renal Treatment Centers--Hawaii, Inc. Corporation DE Renal Treatment Centers--Illinois, Inc. Corporation DE Renal Treatment Centers--Management Acquisition, Inc. Corporation DE Renal Treatment Centers--Mid-Atlantic, Inc. Corporation DE Renal Treatment Centers--Northeast, Inc. Corporation DE Renal Treatment Centers--Southeast, Inc. Corporation DE Renal Treatment Centers--West, Inc. Corporation DE RTC Argentina S.A. Sociedad Anonima (3) RTC Holdings, Inc. Corporation DE RTC Holdings International, Inc. Corporation DE RTC Supply, Inc. Corporation DE RTC--Texas Acquisition, Inc. Corporation TX RTC TN, Inc. Corporation DE Sociedad de Rusdial S.r.l. responsibilidad limitada (6) San Gabriel Valley Partnership Partnership CA Sunrise Dialysis Partnership Partnership CA Total Acute Kidney Care, Inc. Corporation FL Total Renal Care Acquisition Corp. Corporation DE SUBSIDIARIES OF THE COMPANY--(Continued) Jurisdiction of Name Structure Incorporation --------------------------------------------------- ------------------------ --------------- Total Renal Care, Inc. Corporation CA Total Renal Care of Colorado, Inc. Corporation CO Total Renal Care Hollywood Partnership Partnership CA Total Renal Care International Limited Corporation (5) Total Renal Care of New York, Inc. Corporation NY Limited Liability Total Renal Care of North Carolina, LLC Company DE Total Renal Care of Puerto Rico, Inc. Corporation PR Limited Liability Total Renal Care of Provo, L.L.C. Company DE Limited Liability Total Renal Care of Utah, LLC Company DE Total Renal Care Texas LP Limited Partnership DE Total Renal Care (UK) Limited Corporation (5) Sociedad de Total Renal Italia SRL responsibilidad limitada (6) Total Renal Laboratories, Inc. Corporation FL Total Renal Research Institute, Inc. Corporation DE Total Renal Care Support Services, Inc. Corporation DE Limited Liability Total Renal Support Services of North Carolina, LLC Company DE TRC Dyker Heights, L.P. Limited Partnership NY TRC El Paso Limited Partnership Partnership DE Limited Liability TRC--Georgetown Regional Dialysis LLC Company DC Gesellschaft mit TRC GERMANY GmbH beschrankter Haftung (1) Limited Liability TRC--Richmond Renal Care, LLC Company VA Limited Liability TRC--Petersburg, LLC Company DE TRC--Rogosin Group, L.P. Limited Partnership NY TRC West, Inc. Corporation DE Tri-City Dialysis Center, Inc. Corporation VA Unidad Nefrologica Bustamante S.A. Sociedad Anonima (3) University Park Dialysis Partnership Partnership CA Sociedad de Vega S.r.l. responsibilidad limitada (6) West Coast Dialysis Center, Inc. Corporation FL Wilshire Dialysis Partnership Partnership CA - -------- (1) Germany (2) Province of Mendoza, Argentina (3) City of Buenos Aires, Argentina (4) Province of Tucuman, Argentina (5) United Kingdom (6) Italy (7) Province of Santiago del Estero, Argentina