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William Duane Darling

Of Counsel
fax +1 512.536.5716

William Duane Darling concentrates his practice in healthcare law. Bill has extensive experience in the development and implementation of physician/hospital-related managed care organizations.

He advises healthcare clients on all facets of the industry, including:

  • antitrust
  • regulatory compliance
  • fraud and abuse compliance
  • contractual issues
  • risk management issues related to the formation and operation of Accountable Care Organizations
  • joint ventures with hospitals, physicians and other healthcare related providers
  • quality care initiatives including value-based purchasing programs
  • Medicare and Medicaid certification
  • reimbursement issues
  • peer review matters
  • health care planning

Within this practice, he represents clients in matters dealing with the Centers for Medicare and Medicaid Services (CMS), and before various regulatory and licensing agencies, peer review organizations, and in both state and federal courts. Bill is Board Certified in Administrative Law by the Texas Board of Legal Specialization.


Named among The Best Lawyers in America® for Health Care Law by Best Lawyers (1993-2023)

Recognized among the Top Rated Lawyers in Healthcare by Martindale-Hubbell (2013)

Named Texas Super Lawyer by Thomson Reuters (2003-2012)

Named Washington, D.C. Super Lawyer by Thomson Reuters (2010-2014)

Named among Best Lawyers in Healthcare by Chambers USA (2006-2011)

Leading US Healthcare Lawyer, Legal Media Group Expert Guide


State Bar of Texas, Health Law section, Past Chair, Public Law section, P50Past Chair, Administrative Law Committee

Austin Bar Association, Member

East Harris County Bar Association, Past President

Health Care Financial Management Association, Member

American Health Lawyers Association, Member

State Bar Licenses

Texas, District of Columbia

Court Admissions

U.S. District Ct., S.D. of Texas
U.S. District Ct., W.D. of Texas
U.S. Supreme Court
U.S. Court of Appeals, 5th Circuit


  • Panelist. Accountable Care Organizations, Southern Medical Association & Auburn University Health MBA Program (March 2013)
  • Lecturer. Pay for Performance, Southern Medical Association & Auburn University Health MBA Program (March 2013)
  • Healthcare and Consolidation: The Big Bang, Southern Medical Association Conference(December 2012)
  • Health Care Reform and the Consolidation of the Health Care Industry. What Does it Mean for Quality Accreditation & Quality Summit (June 2012)
  • The Consolidation of the Health Care Industry ? Why ACO?s Are Just a Piece of the Puzzle, Southern Medical Association Medico-Legal Aspects of Healthcare Emerging Policy Issues in Conjunction with Auburn University’s Physician Executive MBA Program (March 2012)
  • The Changing Dynamics of Healthcare Finance and Delivery, Texas Association of Health Plans(October 2011)
  • New Market Dynamics & Physician Options, AAMSE Conference (July 2011)
  • Choosing Partners in a Complex Medical World – ACO’s and Other Practice Models, Texas Medical Association (June/July 2011)
  • Choose Your Partners Wisely – Accountable Care Organizations – Friend or PHO? Metroplex Hospital (May 2011)
  • CMS Value-Based Purchasing Strategies for Success, Healthcare Quality (CIHQ) (May 2011)
  • Choose Your Partners Wisely, ACOs and Other Practice Models, TexMed 2011 Texas Medical Society (May 2011)
  • Accountable Care Organizations: Washington Update. Auburn Post-Graduate Program (March 2011)
  • Accountable Care Organizations and State Medical Associations, American Association of Medical Society Executives (January 2011)
  • Accountable Care Organizations, Houston Bar Association (January 2011)
  • Accountable Care Organizations: Opportunity or Threat, Texas Medical Association (November/December 2010)
  • Accountable Care Organizations-Friend or PHO? Texas Medical Association Fall Meeting (October 2010)
  • Panelist. How Healthcare Reform will Affect Your Business – The Opportunities and Hazards, Strasburger Tax Symposium (August 2010)
  • How I Quit Worrying and Learned to Love Health Reform, HFMA Gulf Coast Chapter Annual Meeting (May 2010)
  • Quality Based Reimbursement: How Hospitals and Physicians Can Work Together to Affect Quality Care, Southern Medical Association in Conjunction with Auburn University’s Physician Executive MBA Program (2010)