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Clear Lake Regional Medical Center

Meet Our Leadership

Clear Lake Regional Medical Center – an HCA affiliated hospital – is led by a team of more than 2,000 employees and more than 900 physicians. Supporting this team is an impressive board of trustees that includes highly-respected physicians and community business leaders.

Our board members help develop the hospital’s strategic direction, evaluate the hospital’s delivery of care, and facilitate the development of new services to ensure that our patients receive the most advanced healthcare close to home. This board serves both Clear Lake Regional Medical Center and Mainland Medical Center, a campus of Clear Lake Regional Medical Center.

Meet Our Board of Trustees:

Patrick Koons, M.D., Chairman

Dr. Koons is a Board Certified Anesthesiologist and Managing Member of Guardian Anesthesia Services.  He joined the staff of Clear Lake Regional Medical Center in 2006 and has been the Chief of the Department of Anesthesiology since 2009. He completed a Critical Care Fellowship and his Anesthesiology Residency at the University of Texas Medical Branch at Galveston. He was awarded his Doctor of Medicine also from the University of Texas Medical Branch at Galveston. Dr. Koons received his Bachelor of Science in Biology degree from the University of Texas at Austin. Pat and his wife, Shay, have two daughters and reside in Friendswood.


Mark Ciavaglia

Mark is an attorney in Texas City with the firm Linebarger, Groggan, Blair and Sampson, LLP. He is heavily involved in civic activities including the Texas City Rotary, the Texas City-La Marque Chamber of Commerce Board of Directors, and the Texas City I.S.D. Foundation for the Future. Mark and his wife, Sharon, reside in Texas City with their three children. Mark served as our Board Chairman for the term 2012-2014.


Donald Cline, M.D., President of the Medical Staff/MMC Chief of Staff

Dr. Donald M. Cline is currently serving as the President of the Medical Staff and the Chief of Staff at Mainland Medical Center. He has been a member of the Mainland Medical Staff for 15 years. Dr. Cline graduated from UT Southwestern in Dallas where he completed a research fellowship. He completed his residency/internship at University of Houston Science Center (UTHSC) and UC Davis in California. He is a member of the American Society of Anesthesiologists. Dr. Cline is the father of four children and resides in League City.


Richard Gornto

Rick is president and founding principal of First Financial Benefits, Inc. of Houston and past principal and CEO of First Financial Capital Corporation, an employee benefit third-party administration firm. He is a certified financial planner with 33 years experience in financial services and insurance business.  Rick is past president and board chair of the Houston Society of Certified Financial Planners; past trustee of Alvin Community College; past board member of Child Advocates of Houston; past board member and stockholder of Alvin National Bank; and past president and current board member of the Nolan Ryan Foundation. Rick has been married to Janice Bartley Gornto for 36 years, and has two children and four grandchildren. He resides in the Clear Lake area.


John Lewis, MD

Dr. Lewis is a Board Certified neurologist who has been on staff at Mainland Medical Center since 1979. He completed his internship and residency at the University of Texas Medical School in Houston and is a member of the Texas Neurological Society, AAN. Dr. Lewis is chair of the MMC Credentials Committee, a member of the hospital’s Peer Review Board, and also a member of the Medical Executive Committee. He was named Mainland Medical Center’s Physician of the Year in 2007. Dr. Lewis is the father of two children and resides in Dickinson with his wife, Pam.


Bernard Milstein, MD

Dr. Milstein is a pioneer in the field of laser vision correction and has performed more than 15,000 LASIK procedures. He is also at the forefront in the surgical treatment of cataracts. A fellow of the American Academy of Ophthalmology, Dr. Milstein is a past President of the Texas Ophthalmological Association and is a member of the Texas Medical Association and the Galveston County Medical Society. He is a clinical professor of ophthalmology at the University of Texas Medical Branch and for many years instructed residents in advanced cataract and refractive surgical techniques. Dr. Milstein is involved in countless committees and organizations throughout Bay Area Houston.


Robert Mitchell

Bob Mitchell, president, Bay Area Houston Economic Partnership, has more than 30 years’ experience in economic development, process controls, and manufacturing management in the Houston region. He has spent more than two decades in management as a highly successful executive in both for-profit and non-profit enterprises, and has consistently demonstrated his ability to develop, manage, and implement strategic plans for international companies. Mr. Mitchell believes in supporting the community and has actively donated his time in numerous capacities. In September 2009, Texas Governor Rick Perry appointed Mr. Mitchell to his Aerospace and Aviation Advisory Committee. Mr. Mitchell also serves on numerous boards including the Manned Spaceflight Education Foundation, Inc., HCA Gulf Coast Regional Advisory Board, Rotary National Award for Space Achievement Board of Advisors, Greater Houston Convention and Visitors Bureau, Gulf Coast Limestone, Inc., Houston Technology Center Advisory Board, Board of Visitors Texas A&M University Galveston, and Communities in Schools. Mitchell has three children and lives in Houston.


David Nickeson, MD

Dr. David Nickeson is board certified in Internal Medicine and has been on staff at Mainland Medical Center since 1989. He is currently in private practice at Mainland Pulmonary Associates. Dr. Nickeson was awarded his M.D. degree from Jefferson Medical College and his Bachelor of Science from Pennsylvania State University with highest distinction. Dr. Nickeson has served on numerous committees at Mainland Medical Center and most recently served as CPOE Chairman. Dr. Nickeson serves as Vice President of the Galveston County Medical Society.


Dipsu Patel, MD, Board Member

An interventional cardiologist, Dr. Patel joined the Mainland Medical Center medical staff in 2010. Prior to fellowships at the Texas Heart Institute at St. Luke’s Episcopal Hospital and Baylor College of Medicine Heart Institute, he earned his medical degree from the University of Texas Medical Branch and also served as Chief Resident at George Washington University.


Catherine Potter

Kitty is Corporate Risk Officer at Texas Independent Bancshares, and president and board member at Texas First Bank. Her responsibilities include bank management for Texas City, as well as managing investments, finance and operations, and central reporting and analysis for affiliated banks. She holds bachelor degrees in marketing and accounting, a Master of Business Administration, and is a Certified Public Accountant. Kitty is an inductee of the TCISD Foundation for the Future Hall of Honor and is the first recipient of the Texas First Female Banker of the Year. She has received the Distinguished Service Award for Outstanding Community Service and the Outstanding Citizen Award. She is also on the Rotary Club Multiple Paul Harris Fellow, Roll of Fame. Kitty and her husband, Gary, have three children and reside in Texas City.


Eduardo S. Ramirez, M.D.

Dr. Ramirez joined the staff of Clear Lake Regional Medical Center in January 1996.  He received his medical degree from Ponce School of Medicine in Ponce, Puerto Rico in 1990 and a Bachelor of Science degree from the University of Puerto Rico in 1986 and completed his Residency in Internal Medicine at Yale University/Norwalk Hospital.  Dr. Ramirez is a member of the EmCare Hospitalist Group.  Dr. Ramirez and his wife Sigrid reside in Friendswood with their two children.


Manish Rungta, MD, Vice President of the Medical Staff/CLRMC Chief of Staff

Dr. Rungta currently serves as Vice President of the Medical Staff and Chief of Staff of Clear Lake Regional Medical Center. He joined the Medical Staff of Clear Lake Regional Medical Center in 2004 and is Board Certified in Gastroenterology. Dr. Rungta is in practice at Bay Area Gastroenterology, PA, in Webster. He completed his Gastroenterology Fellowship Training at Baylor College of Medicine and Internal Medicine Residency Training at University of Texas Medical Branch. Dr. Rungta received his Doctor of Medicine from the University of Medicine and Dentistry of New Jersey. He also completed a combined BS/MD Program and Bachelor of Science in Engineering Science (Magna Cum Laude) from the New Jersey Institute of Technology. Dr. Rungta and his wife, Manju, have three children and reside in Bellaire.


Kay Stenzel

Kay received her Bachelor of Science in education in Missouri and has taught school in Missouri and Texas. She was a classroom teacher in Alvin and Santa Fe before retiring from teaching in the Texas City ISD. She has been a resident of Santa Fe since 1988. Kay, a mother and grandmother, is involved in numerous civic activities and is a hospice volunteer. She resides in Santa Fe with her husband, Ralph, who is currently mayor of the City of Santa Fe.


Troy Villareal, President, HCA Gulf Coast DivisionTroy A. Villarreal, President, HCA Gulf Coast Division

Troy A. Villarreal joined HCA Gulf Coast Division as President in June 2016 from Medical City Dallas Hospital, where he had been chief executive officer since October 2013. Before that, he was the chief executive officer at The Medical Center of Plano for five years.

He earned his bachelor’s degree in psychology at Texas A&M University and master’s degrees in health care administration and business administration at the University of Houston-Clear Lake. He is a fellow in the American College of Healthcare Executives.

Villarreal has a strong history of community service. He is a graduate of Leadership Plano Class 27 and formerly served on the executive committee board, strategic planning committee, and alumni committee of Leadership Plano. He also has served on the board of the Plano Chamber of Commerce as campaign cabinet chair for Collin County and as a member of the advisory board of the United Way of Greater Dallas.

Since joining HCA in 1993, Villarreal has been responsible for major facility upgrades, significant growth, and increased patient, physician and employee satisfaction at a variety of HCA hospitals.