William J. Natbony

Phone212 504 6351

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Experience & Credentials

Practice Areas

  • Health Care
  • Litigation
  • Insurance and Reinsurance
University Princeton University, B.A., cum laude, 1980
Law SchoolGeorgetown University Law Center, J.D., 1983
Admitted1983, District of Columbia; 1984, New York and U.S. District Court, Southern and Eastern Districts of New York

For more than twenty-five years, Bill Natbony has devoted his practice to the prosecution and defense of insurance and health care litigation as well as general commercial litigation matters, with particular emphasis and experience in the areas of financial and mortgage fraud, insurance law, no fault, business fraud, RICO, Medicaid/Medicare reimbursement, administrative agency rulemaking and employment disputes. In so doing, he has represented numerous insurance companies, re-insurers, banks, nursing homes, hospitals, physicians, physician management groups and provider associations. He has substantial experience litigating against state and municipal entities.

Bill's experience has included significant litigation challenging fraudulent no fault billing and the improper licensing and structure of health care providers. By way of example, Bill has represented major automobile carriers in significant no-fault civil recovery actions against numerous provider, management company and individual defendants. These litigations have already resulted in the waiver of substantial pending no-fault claims and the recovery of substantial funds for these insurer clients. He also represents groups of insurers seeking to recover substantial no-fault funds paid to a number of New York diagnostic imaging centers as a result of fraudulent billing activities, including the payment for case referrals in violation of New York law. Bill's practice also includes advising insurers concerning their investigatory and claim activities.

Bill's experience also includes representing financial institutions in litigation involving the buying/selling of mortgage loans and securities, the obligations/termination of mortgage loan servicers, and the interpretation and enforcement of complex commercial agreements, including SWAP agreements.

Bill is a 1980 cum laude graduate of Princeton University and obtained his law degree from Georgetown University Law Center in 1983. Prior to joining Cadwalader in 1984, Bill served as law clerk to Judge George Hart and Judge Charles R. Richey of the United States District Court for the District of Columbia.


Hon. George L. Hart Jr.
U.S. District Court, District of Columbia

News & Resources


News Releases

Cadwalader Recognized Among the Most Innovative Law Firms in Europe

Nov 03, 2014


Cadwalader Recognized Among Leading Law Firms in 2015 Edition of IFLR 1000

Oct 21, 2014



European Debt Restructuring Handbook: Leading Case Studies from the Post-Lehman Cycle

Over the past decade in Europe, the number of companies with complex corporate and financing structures has increased to levels unseen at any time in history. While efforts have been made by the European Union and various jurisdictions to improve their restructuring and insolvency regimes, restructuring practitioners and their clients have had to extend the boundaries of what was supposed to be possible in order to restructure corporate groups' balance sheets in a manner that is reflective of value and that preserves the going concern.


Trade Alert

Trade Alert - July 2014, Issue 7

Aug 01, 2014

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Office Information

William J. Natbony

New YorkNY 10281-0006


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