SEMINARS 2026
OUR SPEAKERS 2026
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SEMINARS 2026
Ambulance Taxis: The Impact of Regulation and Litigation on Health Care Fraud
February 12, 2026, 5pm London UK time
This talk is about the effectiveness of pay-and-chase lawsuits and upfront regulations for combating health care fraud. Between 2003 and 2017, Medicare spent $7.7 billion on 37.5 million regularly scheduled ambulance rides for patients traveling to and from dialysis facilities even though many did not satisfy Medicare’s criteria for receiving reimbursements. Using an identification strategy based on the staggered timing of regulations and lawsuits across the US, we find that adding a prior authorization requirement for ambulance reimbursements reduced spending much more than pursuing criminal and civil litigation did on their own. No evidence was found that prior authorization affected patients’ health.
Video | Slides
OUR SPEAKERS 2025
- Ariadna Tibau Martorell, MD PhD
- Ariane Denoyel
- Barbara Goodman
- Beth Boyer
- Bethany Shinkins, DPhil
- Dan O'Connor, MD, PhD
- David R. Penberthy, MD, MBA
- Durhane Wong-Rieger, PhD
- Gary Schwitzer
- Giovanni Fava, MD
- Hilary Robbins, PhD
- Huseyin Naci, PhD
- James Tabery, PhD
- Jeanne Lenzer
- Jo Waller, PhD
- Lawrence Lynn, MD
- Leeza Osipenko, PhD
- Mark Sheehan, PhD
- Nathan I Cherny MBBS, FRACP, FRCP
- Nicholas J. DeVito, MPH, DPhil
- Nick Woolley
- Pan Pantziarka
- Patricia Vandamme
- Peter Sasieni, PhD
- Rebecca Ahrens-Nicklas, MD, PhD
- Reshma Ramachandran, MD
- Robert Cook-Deegan, MD
- Serena Tenari
- Shannon Brownlee
- Sian Taylor-Phillips, PhD
- Timothée Olivier, MD
- Winston Yan, MD, PhD