Dr. Gil Lederman’s success rate claims — 94 to 99 percent control of pancreatic cancer, 95 percent for liver metastases, and above 90 percent for stereotactic radiosurgery generally — rest on a counting method that radiation oncology experts have publicly rejected as flawed, and the marketing built on those numbers has produced malpractice verdicts, patient lawsuits, and a $2.35 million federal Medicare fraud settlement.1New York Magazine. The Doctor Can’t Help Himself2The New York Times. Cancer Doctors Found Guilty of Malpractice3U.S. Department of Justice. Radiation Oncologist to Pay $2.35 Million to Settle Claims of Defrauding Medicare Program
How the Numbers Were Calculated
Lederman’s success figures counted any tumor that shrank or stayed the same size as a positive outcome. Patients who died, or who never sent in follow-up imaging, were excluded from the calculations. New York Magazine’s 2004 investigation found that the 94 percent pancreatic control rate came from a study of 45 patients in which only 17 were actually evaluated. Asked about the exclusions, Lederman said, “If they die, then they don’t send in films.”1New York Magazine. The Doctor Can’t Help Himself
Dr. Robert Timmerman, a radiation oncology professor at the University of Texas Southwestern Medical School, called Lederman’s retrospective analysis “so flawed that it’s almost not worth doing,” saying retrospective reviews of this kind routinely produce control and survival claims that diverge sharply from reality. Dr. Albert Koong, a radiation oncologist at Stanford, said local control of a primary tumor is largely beside the point once a cancer has spread: “It’s like slamming the barn door shut after the horse has run out. What’s going to kill you is the metastases.”1New York Magazine. The Doctor Can’t Help Himself
The claims were distributed widely — through radio and cable television advertising, internet promotion, hospital presentations, and glossy pamphlets — and Lederman charged roughly $18,000 per treatment round.1New York Magazine. The Doctor Can’t Help Himself
Where Radiosurgery Does Reach High Success Rates
Stereotactic radiosurgery genuinely produces high tumor control rates for certain well-defined conditions. The International Stereotactic Radiosurgery Society reports five-year tumor control of 90 to 99 percent for vestibular schwannomas with contemporary dosing.4National Center for Biotechnology Information. ISRS Practice Guidelines for Vestibular Schwannoma Those figures come from prospective or carefully controlled studies of localized, typically benign tumors. They do not transfer to the sweeping claims Lederman has made for terminally ill patients with metastatic pancreatic or liver cancer.
Lawsuits From Patients and Families
Around 2001, Lederman and Staten Island University Hospital launched an “International Patient Program” that marketed fractionated stereotactic radiosurgery to Italian nationals. Promotional materials described the treatment as 90 percent successful with minimal side effects, and patients paid $17,500 for the program. In a promotional video, Lederman called the procedure “a treat, not a treatment because of the effectiveness and the lack of toxicity,” and at Italian conferences he examined patients’ imaging and told them he could cure them.5GovInfo. Gotlin v. Lederman, 04-cv-3736
In August 2004, families of about 20 Italian patients treated between 2001 and 2003 sued in the Eastern District of New York. The case, Gotlin v. Lederman, brought malpractice, fraud, RICO, and deceptive marketing claims. In May 2005, the court dismissed several counts, including the fraud, RICO, Lanham Act, and unjust enrichment claims. In 2009, a judge dismissed most of the remaining wrongful-death claims, finding that plaintiffs had failed to prove malpractice in 18 cases and had not established deceptive marketing.5GovInfo. Gotlin v. Lederman, 04-cv-37366Staten Island Advance. Jury Finds Malpractice, Not Wrongful Death
One case went to trial. In May 2010, a civil jury found Lederman and his colleague Dr. Philip Silverman guilty of malpractice in the treatment of Giuseppa Bono, a mother of three who died in 2002. The jury did not find them liable for her wrongful death. Plaintiffs argued that Bono actually had pancreatitis and that the hospital failed to evaluate her adequately before administering radiation.6Staten Island Advance. Jury Finds Malpractice, Not Wrongful Death
The $2.35 Million Medicare Fraud Settlement
Elizabeth M. Ryan, the widow of one of Lederman’s cancer patients, filed a whistleblower suit in 2004 under the False Claims Act. She alleged that between 1996 and 2003, Lederman billed Medicare for stereotactic body radiosurgery even though Medicare at the time covered the procedure only for above-the-neck treatments and classified body radiosurgery as experimental. According to the complaint, Lederman systematically miscoded claims to indicate he had treated patients above the neck, affecting roughly 300 patients.3U.S. Department of Justice. Radiation Oncologist to Pay $2.35 Million to Settle Claims of Defrauding Medicare Program
The federal government joined the case in 2008. A federal judge found Lederman’s reimbursement claims “legally and factually false.”7PR Newswire. Doctor Gilbert Lederman Will Pay $2.35 Million to the US to Settle Healthcare Fraud Cancer Treatment Lawsuit In November 2014, Lederman agreed to pay $2.35 million to settle without admitting liability. Of that total, $2,175,000 went to the federal government and $326,250 to Ryan as the whistleblower’s share, with an additional $175,000 for her legal fees.8Staten Island Advance. Former ‘Beatle Doc’ Settles Medicare Fraud Case
The Hospital’s Parallel Settlements
Staten Island University Hospital resolved its own exposure years earlier. In September 2008, the hospital paid $88.9 million to settle a range of federal and state fraud allegations, including $25 million tied to the same stereotactic radiosurgery billing practices in Ryan’s complaint, and entered a corporate integrity agreement with the Department of Health and Human Services inspector general.9U.S. Department of Justice. Staten Island University Hospital Pays $88.9 Million Settlement A separate federal suit alleging that Lederman’s advertisements overstated the success of the radiosurgery treatment settled in January 2008 for $880,000.10The New York Times. Staten Island Hospital Settles Fraud Case Lederman was removed as director of radiation oncology at Staten Island University Hospital in 2002.11New York Post. Beatle Guitar Doctor Booted
Where the Practice Stands Now
Lederman continues to operate Radiosurgery New York from Midtown Manhattan. As of early 2024, the practice’s website describes its radiosurgery as “well tolerated & highly successful attacking targeted cancer in general” and features before-and-after images captioned “Brain Tumor Disappears after Dr Lederman’s Radiosurgery!” and “Pancreas Cancer Disappears after Dr L’s Radiosurgery!” The site claims he has treated “tens of thousands” of patients, including more than 5,000 men for prostate cancer, and describes his “experience and expertise” as “unparalleled.”12Radiosurgery New York. Radiosurgery New York Homepage
Available reporting shows no revocation or suspension of Lederman’s medical license. The only disciplinary action on record is a 2003 reprimand and $5,000 fine from the New York State Board for Professional Medical Conduct, which arose from a separate matter involving disclosure of patient information without consent.13CNN. Harrison Estate Files Suit Against Doctor For a patient weighing the success rates in his marketing, the record to weigh them against is the one above: experts who have called the underlying analysis flawed, a jury that found malpractice, a federal judge who called his Medicare billing legally and factually false, and more than $3 million in combined settlements tied to the treatment and how it was sold.