Mary Inman

T: +44 (0) 20 3668 5611
F: +44 (0) 20 3668 5601

San Francisco
T: 415.426.5661
F: 415.639.4002
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Mary Inman is a partner in Constantine Cannon’s London Office.  She specializes in representing whistleblowers in “qui tam” lawsuits brought under the Federal and various state False Claims Acts.  She also represents whistleblowers in making claims under the Internal Revenue Service and Securities and Exchange Commission’s whistleblower programs.

Ms. Inman is a recognized expert and frequent author and speaker on areas related to health care reimbursement and government procurement.  She has particular expertise in addressing Medicare Advantage risk adjustment fraud and is one of the lead attorneys in a prominent whistleblower case against UnitedHealth Group involving allegations the Medicare Advantage Organization submitted false claims for payment to the Medicare Program based on artificially inflated member risk scores..  She also has extensive experience addressing fraud in government infrastructure projects, and representing city and state governments in prosecuting civil fraud actions.

Ms. Inman joined Constantine Cannon in June 2015.  Previously, she was a partner at Phillips & Cohen, LLP.  Her clients have successfully helped the United States and various states and municipalities recover hundreds of millions of dollars, including cases where:

  • A California jury awarded a $223 million verdict to several Los Angeles and California agencies against an electric utility for overcharging its government customers.
  • A series of hospitals around the country paid $62.9 million to settle allegations that they had inflated cost reports submitted to Medicare for reimbursement.
  • Tyco International and other manufacturers paid over $60 million to settle claims by dozens of California municipalities that they had sold waterworks parts with 40% more lead than allowed by industry standards.
  • Tenet Healthcare Corp. paid $9.75 million in part to settle allegations that its subsidiary shifted costs from its inpatient unit to its rehabilitation unit to increase Medicare reimbursement.
  • Afghanistan war-zone contractor RECON International settled with the Department of Justice in 2010 to avoid litigating claims that it had fraudulently inflated its bills for materials used to build operating bases for U.S. troops.
  • The San Francisco Unified School District received a $5 million award after suing NEC Business Network Solution for paying kickbacks to school officials to induce them to order excess computer equipment using federal funds from the E-rate program.

Ms. Inman also was a leading member of the team of lawyers representing a whistleblower, several states and dozens of public agencies in a two-month jury trial, which resulted in a verdict that the largest PVC pipe manufacturer in the world had defrauded its customers over a ten-year period.  Prior to the start of the trial, co-defendant Formosa Plastics paid $22.5 million to settle its own potential liability.

Ms. Inman graduated cum laude from the University of Pennsylvania Law School in 1994, where she was an articles editor and an associate editor of the University of Pennsylvania Law Review.
After law school, she clerked for the Honorable D. Brock Hornby, U.S. District Court for the District of Maine, and the Honorable Norman H. Stahl of the U.S. First Circuit Court of Appeals. She was then an associate at O’Melveny & Meyers LLP in San Francisco, where her practice focused on employment, collective bargaining and False Claims Act matters.

Ms. Inman graduated summa cum laude from Bowdoin College in 1990 with a joint degree in Russian and Government and Legal Studies.  During her senior year she studied abroad at the Moscow State Linguistic University.

Ms. Inman is bar-qualified in California and Maine.

Practice Groups


  • California
  • Maine


Pollution Whistleblowers Can Win Outsize Rewards (with Max Voldman) The Maritime Executive (July 7, 2017).
Click here to read the article.

Prescription for Chiropractors: Are Your Medicare Billing Procedures Out of Alignment? (with Christopher McLamb) The American Chiropractor (April 2017).
Click here to read the article.

The risks and rewards of medical loss ratio come to managed care (with Timothy P. McCormack
and Jessica T. Moore)
Managed Healthcare Executive (March 12, 2015).
Click here to read the article.

EHRs: Computer Functions Facilitate Fraud
(with Timothy P. McCormack)
Healthcare Business Monthly (May 2014).
Click here to read the article.

Medicare Risk Adjustment: Financial Incentives May Lead to Bad Practices (with Timothy P. McCormack) AAPC Coding Edge (October 2012, 30-32)


June 12, 2017 “In the Crosshairs: Medicare Advantage and Risk Adjustment Fraud,” RAC Monitor broadcast program discussing Constantine Cannon’s recent $32.5 million settlement of the whistleblower case against Freedom Health, Optimum Healthcare, and Sidd Pagidipati (at 22:05 and 28:05 of the broadcast).
Click here to listen to the broadcast.

November 17, 2015 Presenter: "Enforcement Trends in Risk Adjustment: DOJ and the False Claims Act" SSN's Medicare Risk Adjustment & Revenue Management Conference in Miami.
Click here to read the presentation.

October 19, 2013 Keynote Speech: Los Angeles County Bar Association 10th Annual Healthcare Law Compliance Symposium

February 25, 2013 Presenter: "Anti-Fraud Challenges for 2013" HCCA Managed Care Compliance Conference

February 13, 2012 Presenter: “Beyond RADV: Does Your Plan's Risk Adjustment Strategy Run Afoul of the False Claims Act" HCCA Managed Care Compliance Conference
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April 29, 2010 Presenter: "False Claims Act Enforcement of Procurement Fraud, Special Considerations for Contractors" CLE International: False Claims Act Qui Tam Litigation

May 3, 2001 Presenter: "Whether FCA Fines Violate the 8th Amendment" American Bar Association Fraud Institute

The London office of Constantine Cannon is a separate and independent limited liability partnership registered in England and Wales (with registered number OC376384) with a registered office at 1 Paternoster Square, London EC4M 7DX. Constantine Cannon LLP in London is authorised and regulated by the Solicitors Regulation Authority. The word "partner" denotes a member of Constantine Cannon LLP, or an employee or consultant with equivalent standing and qualifications. The professional rules applicable to the firm are available at the SRA website at