Giving the Most


U.S. Renal Care is led by a seasoned senior management team with more than 150 years of collective experience in healthcare management and operations.

J. Christopher Brengard
Chief Executive Officer
Chris Brengard founded U.S. Renal Care in 2000 and has served as its President and CEO since inception. Prior to founding USRC, Chris served as Vice President of Outpatient Operations for Select Medical Corporation from 1998 to 2000. In addition, in 1992, he was the founder of MediFit Rehabilitation Group in Houston, Texas and served as its President and CEO until 1998. Prior to MediFit, he held various positions with Continental Medical Systems in Jonesboro, Arkansas.
Doctor Mary Dittrich.
Dr. Mary Dittrich
Chief Medical Officer
Dr. Dittrich is the CMO at U.S. Renal Care and a co-founder and Partner of Boise Kidney & Hypertension Institute. She served as the Chairman of the Medical Advisory Board for Liberty Dialysis, Inc., an organization which partnered with nephrologists to own and operate dialysis facilities. She co-founded numerous dialysis clinics in the states of Idaho and Alaska, where she served as a medical director. Dr. Dittrich also served as the Senior Medical Director of Remedy Partners, the largest Awardee Convener under Medicare’s bundled payment program. Dr. Dittrich earned her medical degree from the University of Colorado Health Sciences Center in Denver, Colorado. She completed her residency in Internal Medicine followed her fellowship in Nephrology at the University of Washington in Seattle, where she also worked in the area of transplantation. Dr. Dittrich received a Bachelor of Science degree in Nursing from Creighton University where she received the Spirit of Creighton Award, the highest student award presented by the University.
Stephen Pirri headshot.
Stephen Pirri
President, Chief Operating Officer 
Stephen Pirri joined U.S. Renal Care in April of 2007 and serves as its COO. Steve has more than 20 years of experience in the healthcare industry. Most recently, he served as general manager with Baxter Renal Division, working in the U.S. and internationally. Prior to that, Steve was senior vice president for Gambro Healthcare for five years, managing 175 dialysis clinics and 125 acute care programs in the southeastern U.S with annual revenues of more than $400 million. He was part of a major turnaround for the company that led to divestiture to DaVita. He has also held executive level positions with Urotherapies Inc., Haemonetics Corporation and Coram Healthcare.
Jack F Egan headshot.
Jack F. Egan
Executive Vice President, Finance
Jack Egan is a U.S. Renal Care founder and has been a senior manager since the company’s inception. Jack’s credentials include serving as a Sr. Vice President of Select Medical Corporation from 1997 to 2000. From 1991 to 1997, he was President/COO of RehabWorks, Inc., a subsidiary of Continental Medical Systems. From 1987 to 1991, Jack served as CFO/EVP of RehabWorks in Clearwater, Florida.
Headshot for Thomas L Weinberg.
Thomas L. Weinberg
Executive Vice President, General Counsel
Tom Weinberg joined U.S. Renal Care in September 2006. Prior to joining U.S. Renal Care, Tom served as Vice President, Public Policy, with DaVita Inc., in Washington, D.C., and Assistant General Counsel for DaVita in Tacoma, Washington. From 1990 to 1998, he practiced law in Seattle with the law firms of Bennett Bigelow & Leedom and Foster Pepper & Shefelman.
Headshot for Mike Huguelet.
Mike Huguelet
Executive Vice President, Chief Development Officer
Mike Huguelet joined U.S. Renal Care in 2017 with over 15 years of experience in the healthcare industry. Most recently, he served as the Chief Development Officer with NorthStar Anesthesia focused on new hospital and physician partnerships. Mike also served as a Vice President with DaVita leading growth efforts in both kidney care and integrated care. His prior experience includes investment banking efforts focused on M&A and capital formation, and operations consulting with Arthur Andersen. Mike earned his B.S. in Finance and MIS from Saint Louis University, and his M.B.A. from the Leeds School of Business at the University of Colorado - Boulder.
Headshot for James Shelton.
James D. Shelton
Executive Vice President, Chief Financial Officer
James Shelton joined U.S. Renal Care in May of 2007. James has more than 20 years of experience in senior healthcare management for public and privately owned companies in a variety of healthcare sectors. Most recently, he served as chief financial officer of LifeCare Holdings, Inc. a long-term acute care hospital company that operated 21 hospitals in nine states with more than $360 million in annual revenues. Prior to that, he served as chief financial officer of several healthcare companies including PharMerica, Inc., Capstone Pharmacy Services, Inc., Allied Pharmacy Management, Inc. (a subsidiary of Cardinal Health, Inc.) and National Heritage, Inc.
Headshot for Cameron Thompson.
Cameron Thompson
Divisional President, Operations
Cameron Thompson joined U.S. Renal Care in January 2017. Cameron has more than 30 years of experience in the healthcare industry. Prior to joining U.S. Renal Care, he served most recently as the Executive Vice President, West Zone for Apria Healthcare. Before that, Cameron served as the Executive Vice President of Operations, Executive Vice President of Logistics and a number of progress senior leadership roles in the organization over his 20 year tenure with Apria Heatlhcare. Before joining Apria, he served in upper management roles for two regional, privately-held home care companies. He holds a Bachelor of Business Administration degree in Finance from the University of Texas of the Permian Basin.
Headshot of Steve Nottingham.
Steve Nottingham
Divisional President, East
Steve joined U.S. Renal Care in September 2019 and serves as the Divisional President for the East. Prior to USRC, Steve was the General Manager of the Western Group with Fresenius Kidney Care where, during his tenure, his efforts led the division to being ranked #1 in overall quality. Before his time in healthcare, Steve was with Iron Mountain Corporation for 25 years where his last position was as the Executive Vice President for Emerging Business and Customer Experience. Steve received his Bachelor of Science degree in Finance from California State Polytechnic University, Pomona.
Headshot of Jack N. Harrington.
Jack N. Harrington
Senior Vice President, Real Estate & Development
Jack Harrington, a founding partner of U.S. Renal Care, serves as Sr. Vice President of Real Estate Development. Jack has over 25 years of operational health care and development experience. Prior to USRC, from 1990 to 2000, Jack was the Chief Operating Officer of NEA Clinic of Jonesboro Arkansas, a large multi-specialty medical clinic with 26 specialties and more than 90 physicians. From 1984 to 1990 Mr. Harrington was Vice President of United Federal Savings & Loan.
Headshot of Debbie Taylor.
Debbie Taylor
Senior Vice President, Clinic Services
Debbie Taylor received her nursing degree in 1984. She has worked in the dialysis industry since 1989 with experience in acute and chronic dialysis as well as the home modalities. Debbie earned her Master’s Degree in Nursing-Health Systems Management from Vanderbilt University in 2004. She joined the US Renal Care team in 2015 after the merge with DSI Renal as Senior Vice President, Operations for the Western Division.
Lauren McDowell headshot.
Lauren McDowell
Senior Vice President, Human Resources
Lauren McDowell joined U.S. Renal Care in October of 2006. Lauren has more than 30 years comprehensive Human Resource experience with both national and multinational companies in the private sector as well as state government. Prior to coming to U. S. Renal Care she served as Director of Human Resources within the hospitality and manufacturing industries. She is a trainer certified by nationally known Franklin Covey and Novations, and her expertise includes employee relations, talent and performance management, training and benefits.
Headshot of Brett Kirstein.
Brett Kirstein
Senior Vice President, Chief Revenue Officer
Brett Kirstein joined U.S. Renal Care in January, 2017. Prior to joining USRC, Brett was a Managing Director of WayPoint Healthcare Advisors providing advisory services to clients across the country related to optimizing their revenue cycle, initiating Accountable Care Organizations, and establishing population health strategies, infrastructure, and technology support. In 2003, he founded and led Revenue Cycle Solutions, a firm that served a variety of clients including large academic health systems, community hospitals, public and regional long term care providers, and physician groups. He started his career at Arthur Andersen and became a Partner leading the revenue cycle practice for the Southwest Region.
Headshot of David Eldridge.
David Eldridge
Senior Vice President of Finance
David Eldridge joined U.S. Renal Care in May of 2006. David has more than 20 years of accounting and finance experience in various industries including healthcare, technology and public accounting. Prior to joining U.S. Renal Care, he was the Manager of Financial Planning and Analysis for Maxim Integrated Products, a publicly traded semiconductor manufacturer. David is a CPA as well as a Chartered Accountant in Australia.
Headshot of Tim Thomasson.
Tim Thomasson 
Senior Vice President, Information Technology, Chief Information Officer
Tim Thomasson joined U.S. Renal Care in February of 2010. Tim has 20 years of experience in the healthcare information technology field. Most recently, he served as Chief Information Officer for Medical Edge Healthcare, a multi-disciplinary medical practice management group. Prior to that, he was Vice President of Information Technology at Magella Healthcare, a national group of Neonatal and Maternal Fetal Medicine providers. He has also held senior IT management positions with Pediatrix Medical Group and the Metroplex Emergency Physicians group.
Headshot of Joseph Brunink.
Joseph Brunink
Senior Vice President, Operations
Joseph Brunink joined U.S. Renal Care in 2018 and serves as its Senior Vice President of Operations for the Central Division. Before joining USRC, Joe worked for DaVita for six years, most recently serving as a Divisional Vice President with responsibilities for more than 50 dialysis centers in Michigan. Joe began his healthcare experience in physician practice management with Spectrum Health working with Vascular Surgery, Cardiology, and Surgical Specialties. Joe also played professional baseball within the Philadelphia Phillies organization. He received his B.A. in Operations Management from Grand Valley State University and his M.B.A. from Michigan State University.