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Board & Management

Management | Board of Directors
Managers
Biography Photo Kent J. Thiry
Co-Chairman and Chief Executive Officer of DaVita HealthCare Partners Inc.

Kent J. Thiry became our co-chairman of the Board of Directors in November 2012 and continues as our chief executive officer since October 1999. He served as our chairman from October 1999 to November 2012. From June 1997 until he joined us, Mr. Thiry was chairman of the board and chief executive officer of Vivra Holdings, Inc., which was formed to operate the non-dialysis business of Vivra Incorporated (“Vivra”) after Gambro AB acquired the dialysis services business of Vivra in June 1997. From September 1992 to June 1997, Mr. Thiry was the president and chief executive officer of Vivra, a provider of renal dialysis and other healthcare services. From April 1992 to August 1992, Mr. Thiry was president and co-chief executive officer of Vivra, and from September 1991 to March 1992, he was president and chief operating officer of Vivra. From 1983 to 1991, Mr. Thiry was associated with Bain & Company, first as a consultant, and then as vice president. Mr. Thiry previously served on the board of Varian Medical Systems, Inc. As a member of management, Mr. Thiry provides significant industry-specific experience and unique expertise regarding the company’s business and operations as well as executive leadership and management experience.
Biography Photo Dennis Kogod
Chief Operating Officer of DaVita HealthCare Partners Inc.

Dennis L. Kogod became our chief operating officer in January 2009 and prior to that, he served as our president-west beginning in October 2005. From January 2004 until joining us, Mr. Kogod served as president and chief operating officer-west of Gambro Healthcare, Inc., which we acquired in October 2005. From July 2000 to January 2004, Mr. Kogod served as president, west division of Gambro Healthcare, Inc. From June 1999 to July 2000, Mr. Kogod was president of Teleflex Medical Group, a medical original equipment manufacturer of medical delivery systems. From January 1996 to June 1999, Mr. Kogod was corporate vice president of Teleflex Surgical Group, a surgical device and service organization. Mr. Kogod served on the board of directors of Arbios Systems, Inc., a medical device and cell-based therapy company.

Biography Photo Dr. Robert J. Margolis MD
Co-Chairman of DaVita HealthCare Partners Inc. and Chief Executive Officer of HealthCare Partners

Robert J. Margolis became our co-chairman in November 2012. He continues to serve as the Chief Executive Officer of HealthCare Partners Holdings, LLC, which became one of our subsidiaries in November 2012, since May 1982 and the managing partner of HCP Medical Group since he founded its predecessor entity in July 1975. Dr. Margolis is board certified in internal medicine and medical oncology having trained at Duke University Medical School and the National Cancer Institute. Dr. Margolis serves on the boards of directors of the Martin Luther King Hospital, the National Committee for Quality Assurance, the California Association of Physician Groups, and the California Hospital Medical Center Foundation, Los Angeles. Dr. Margolis also serves as a member of the Executive Management Advisory Board at UCLA’s School of Public Health, a member of HealthCare Policy Advisory Council for Harvard Medical School, and a member of the advisory board of the USC Schaeffer Center for Health Policy and Economics. Dr. Margolis previously served as the chairman of the boards of directors of the American Medical Group Association, the National Committee for Quality Assurance, and the Unified Medical Group Association. Dr. Margolis has a national reputation in the managed care industry with over 40 years of industry experience. He works extensively on issues of quality improvement, pay for performance, coordinated care and access to care issues and speaks frequently on these and related subjects at National and regional meetings.
Biography Photo James K. Hilger
Interim Chief Financial Officer and Chief Accounting Officer of DaVita HealthCare Partners Inc.

James K. Hilger became our interim chief financial officer in April 2012 in connection with Mr. Borgen’s resignation from the company and continues to serve as our chief accounting officer, a position he has held since April 2010. Prior to April 2010, Mr. Hilger served as our vice president and controller since May 2006, after having served as our vice president, finance beginning in September 2005. Mr. Hilger was our acting chief financial officer from November 2007 through February 2008. From September 2003 until joining us, Mr. Hilger served as vice president, finance and administration and chief financial officer of Pyramid Breweries, a brewer of specialty beverages. From December 1998 to July 2003, Mr. Hilger served in positions as chief executive officer and chief financial officer of WorldCatch, Inc., a seafood industry company. From 1987 until joining WorldCatch, Inc., Mr. Hilger held a variety of senior financial positions in the food industry. Mr. Hilger began his career in public accounting with Ernst & Whinney.
Biography Photo LeAnne Zumwalt
Group Vice President of DaVita HealthCare Partners Inc.

LeAnne M. Zumwalt became our group vice president in July 2011. From January 2000 to July 2011, Ms. Zumwalt served as vice president and currently oversees our public policy and government relations and our purchasing functions. Ms. Zumwalt has served in various capacities with us and served as our vice president investor relations from January 2000 through October 2009. From 1997 to 1999, Ms. Zumwalt served as chief financial officer of Vivra Specialty Partners, a privately held health care service and technology firm. From 1991 to 1997, Ms. Zumwalt held various executive positions at Vivra Incorporated, a publicly held provider of dialysis services. Prior to joining Vivra Incorporated, Ms. Zumwalt was a senior manager at Ernst & Young, LLP. Ms. Zumwalt serves on the board of directors of The Advisory Board Company.
Biography Photo Laura Mildenberger
Chief People Officer of DaVita HealthCare Partners Inc.

Laura A. Mildenberger became our chief people officer in July 2008, having joined us in October 2001 as vice president of operations. Prior to joining us, Ms. Mildenberger served as vice president of operations for the western U.S. for Matrix Rehabilitation, a physical therapy outpatient company, from March 2000 to October 2001. From 1993 to 2000, Ms. Mildenberger served as a general manager for NovaCare Outpatient Rehabilitation, a provider of physical and occupation therapy services. From 1988 to 1993, Ms. Mildenberger was the executive vice president/principal of Worker Rehabilitation Services, a multi-site physical rehabilitation company. Ms. Mildenberger began her career as an occupational therapist at the Mayo Clinic.
Biography Photo Javier Rodriguez
President of DaVita HealthCare Partners Inc.

Javier J. Rodriguez became our president in February 2012. Mr. Rodriguez served as our senior vice president from April 2006 to February 2012. From December 2003 to April 2006, Mr. Rodriguez served as our vice president value management, operations. From August 1999 to December 2003, Mr. Rodriguez served as our vice president of payor contracting. From July 1998 to August 1999, Mr. Rodriguez served as divisional financial analyst. Prior to joining DaVita, Mr. Rodriguez worked for Baxter Healthcare Corporation in Finance from 1995 to 1996. He also served as Director of Operations for CBS Marketing Inc. in Mexico City.
Biography Photo Allen R. Nissenson, MD, FACP
Chief Medical Officer of DaVita HealthCare Partners Inc.

Allen R. Nissenson, MD, FACP, became our chief medical officer in August 2008. He is an emeritus professor of medicine at the David Geffen School of Medicine at UCLA, where he served as director of the dialysis program from 1977 to 2008 and associate dean from 2005 to 2008. Dr. Nissenson was the president of the Southern California End-Stage Renal Disease Network from 2005 to 2007. Dr. Nissenson was the president of the National Anemia Action Council from 2001 to 2007. Dr. Nissenson was the president of the Renal Physicians Association from 1999 to 2001.

	Kent J. Thiry Co-Chairman and Chief Executive Officer of DaVita HealthCare Partners Inc. Kent J. Thiry became our co-chairman of the Board of Directors in November 2012 and continues as our chief executive officer since October 1999. He served as our chairman from October 1999 to November 2012. From June 1997 until he joined us, Mr. Thiry was chairman of the board and chief executive officer of Vivra Holdings, Inc., which was formed to operate the non-dialysis business of Vivra Incorporated (“Vivra”) after Gambro AB acquired the dialysis services business of Vivra in June 1997. From September 1992 to June 1997, Mr. Thiry was the president and chief executive officer of Vivra, a provider of renal dialysis and other healthcare services. From April 1992 to August 1992, Mr. Thiry was president and co-chief executive officer of Vivra, and from September 1991 to March 1992, he was president and chief operating officer of Vivra. From 1983 to 1991, Mr. Thiry was associated with Bain & Company, first as a consultant, and then as vice president. Mr. Thiry previously served on the board of Varian Medical Systems, Inc. As a member of management, Mr. Thiry provides significant industry-specific experience and unique expertise regarding the company’s business and operations as well as executive leadership and management experience.

	Dennis Kogod Chief Operating Officer of DaVita HealthCare Partners Inc. Dennis L. Kogod became our chief operating officer in January 2009 and prior to that, he served as our president-west beginning in October 2005. From January 2004 until joining us, Mr. Kogod served as president and chief operating officer-west of Gambro Healthcare, Inc., which we acquired in October 2005. From July 2000 to January 2004, Mr. Kogod served as president, west division of Gambro Healthcare, Inc. From June 1999 to July 2000, Mr. Kogod was president of Teleflex Medical Group, a medical original equipment manufacturer of medical delivery systems. From January 1996 to June 1999, Mr. Kogod was corporate vice president of Teleflex Surgical Group, a surgical device and service organization. Mr. Kogod served on the board of directors of Arbios Systems, Inc., a medical device and cell-based therapy company.

	Dr. Robert J. Margolis MD Co-Chairman of DaVita HealthCare Partners Inc. and Chief Executive Officer of HealthCare Partners Robert J. Margolis became our co-chairman in November 2012. He continues to serve as the Chief Executive Officer of HealthCare Partners Holdings, LLC, which became one of our subsidiaries in November 2012, since May 1982 and the managing partner of HCP Medical Group since he founded its predecessor entity in July 1975. Dr. Margolis is board certified in internal medicine and medical oncology having trained at Duke University Medical School and the National Cancer Institute. Dr. Margolis serves on the boards of directors of the Martin Luther King Hospital, the National Committee for Quality Assurance, the California Association of Physician Groups, and the California Hospital Medical Center Foundation, Los Angeles. Dr. Margolis also serves as a member of the Executive Management Advisory Board at UCLA’s School of Public Health, a member of HealthCare Policy Advisory Council for Harvard Medical School, and a member of the advisory board of the USC Schaeffer Center for Health Policy and Economics. Dr. Margolis previously served as the chairman of the boards of directors of the American Medical Group Association, the National Committee for Quality Assurance, and the Unified Medical Group Association. Dr. Margolis has a national reputation in the managed care industry with over 40 years of industry experience. He works extensively on issues of quality improvement, pay for performance, coordinated care and access to care issues and speaks frequently on these and related subjects at National and regional meetings.

	James K. Hilger Interim Chief Financial Officer and Chief Accounting Officer of DaVita HealthCare Partners Inc. James K. Hilger became our interim chief financial officer in April 2012 in connection with Mr. Borgen’s resignation from the company and continues to serve as our chief accounting officer, a position he has held since April 2010. Prior to April 2010, Mr. Hilger served as our vice president and controller since May 2006, after having served as our vice president, finance beginning in September 2005. Mr. Hilger was our acting chief financial officer from November 2007 through February 2008. From September 2003 until joining us, Mr. Hilger served as vice president, finance and administration and chief financial officer of Pyramid Breweries, a brewer of specialty beverages. From December 1998 to July 2003, Mr. Hilger served in positions as chief executive officer and chief financial officer of WorldCatch, Inc., a seafood industry company. From 1987 until joining WorldCatch, Inc., Mr. Hilger held a variety of senior financial positions in the food industry. Mr. Hilger began his career in public accounting with Ernst & Whinney.

	LeAnne Zumwalt Group Vice President of DaVita HealthCare Partners Inc. LeAnne M. Zumwalt became our group vice president in July 2011. From January 2000 to July 2011, Ms. Zumwalt served as vice president and currently oversees our public policy and government relations and our purchasing functions. Ms. Zumwalt has served in various capacities with us and served as our vice president investor relations from January 2000 through October 2009. From 1997 to 1999, Ms. Zumwalt served as chief financial officer of Vivra Specialty Partners, a privately held health care service and technology firm. From 1991 to 1997, Ms. Zumwalt held various executive positions at Vivra Incorporated, a publicly held provider of dialysis services. Prior to joining Vivra Incorporated, Ms. Zumwalt was a senior manager at Ernst & Young, LLP. Ms. Zumwalt serves on the board of directors of The Advisory Board Company.

	Laura Mildenberger Chief People Officer of DaVita HealthCare Partners Inc. Laura A. Mildenberger became our chief people officer in July 2008, having joined us in October 2001 as vice president of operations. Prior to joining us, Ms. Mildenberger served as vice president of operations for the western U.S. for Matrix Rehabilitation, a physical therapy outpatient company, from March 2000 to October 2001. From 1993 to 2000, Ms. Mildenberger served as a general manager for NovaCare Outpatient Rehabilitation, a provider of physical and occupation therapy services. From 1988 to 1993, Ms. Mildenberger was the executive vice president/principal of Worker Rehabilitation Services, a multi-site physical rehabilitation company. Ms. Mildenberger began her career as an occupational therapist at the Mayo Clinic.

	Javier Rodriguez President of DaVita HealthCare Partners Inc. Javier J. Rodriguez became our president in February 2012. Mr. Rodriguez served as our senior vice president from April 2006 to February 2012. From December 2003 to April 2006, Mr. Rodriguez served as our vice president value management, operations. From August 1999 to December 2003, Mr. Rodriguez served as our vice president of payor contracting. From July 1998 to August 1999, Mr. Rodriguez served as divisional financial analyst. Prior to joining DaVita, Mr. Rodriguez worked for Baxter Healthcare Corporation in Finance from 1995 to 1996. He also served as Director of Operations for CBS Marketing Inc. in Mexico City.

	Allen R. Nissenson, MD, FACP Chief Medical Officer of DaVita HealthCare Partners Inc. Allen R. Nissenson, MD, FACP, became our chief medical officer in August 2008. He is an emeritus professor of medicine at the David Geffen School of Medicine at UCLA, where he served as director of the dialysis program from 1977 to 2008 and associate dean from 2005 to 2008. Dr. Nissenson was the president of the Southern California End-Stage Renal Disease Network from 2005 to 2007. Dr. Nissenson was the president of the National Anemia Action Council from 2001 to 2007. Dr. Nissenson was the president of the Renal Physicians Association from 1999 to 2001.