False Claims Act complaint filed against former president and co-owner of mobile cardiac PET scan provider

HOUSTON – The United States has filed a complaint under the False Claims Act against Rick Nassenstein, a resident of Florida and formerly the president, chief financial officer and co-owner of Illinois-based Cardiac Imaging Inc. (CII), a provider of mobile cardiac positron emission tomography (PET) scans.

The complaint alleges Nassenstein knowingly played a central role in a scheme whereby CII paid doctors exorbitant, above-fair market value fees who referred patients to CII for cardiac PET scans in violation of the Physician Self-Referral Law, also known as the Stark Law. It prohibits health care providers from billing Medicare for certain designated health services referred by a physician with whom the provider has a financial relationship, including a compensation arrangement, that does not meet any statutory or regulatory exception. Congress enacted the Stark Law to protect Medicare patients from financial arrangements that can adversely impact physicians’ decision making and lead to unnecessary services. Claims knowingly submitted to Medicare in violation of the Stark Law also violate the federal False Claims Act (FCA).

“Improper compensation arrangements unnecessarily drive-up healthcare costs and cloud a physician’s medical judgment,” said U.S. Attorney Alamdar S. Hamdani. “This complaint alleges that in an effort to increase profits, Nassenstein caused CII to enter into improper compensation arrangements with cardiologists who referred patients for cardiac PET scans. We are committed to enforcing the Stark Law and protecting Medicare from these types of improper financial relationships.”

“Financial relationships between healthcareproviders and referring physicians can undermine the objectivity of medical treatment decisions and increase the cost of care,” said Principal Deputy Assistant Attorney General Brian M. Boynton, head of the Justice Department’s Civil Division. “The Justice Department will enforce provisions designed to prevent prohibited financial conflicts to ensure that taxpayers and patients can have confidence that decisions about patient care are driven by the medical needs of patients rather than the financial interests of physicians or providers.” 

Cardiac PET scans are nuclear medicine tests that doctors use to help assess heart function and diagnose cardiac disease. The United States’ complaint alleges CII provided cardiac PET scans on a mobile basis and paid the referring physicians, usually cardiologists, to provide the physician supervision required under Medicare rules. The United States alleges that from at least 2017 through June 2023, Nassenstein caused CII to enter into compensation arrangements with referring cardiologists, under which the cardiologists were paid as if they were fully occupied supervising CII’s scans, even though the cardiologists were actually providing care to other patients in their offices or were not even on site. The complaint alleges CII’s fees also purportedly compensated the cardiologists for additional services beyond supervision that were not actually provided. 

The lawsuit was originally filed under the qui tam or whistleblower provisions of the FCA by Lynda Pinto, a former billing manager at CII. Under the FCA, private parties, known as relators, can file an action on behalf of the United States and receive a portion of the recovery. The FCA permits the United States to intervene in and take over the action, as it has done here. If a defendant is found liable for violating the FCA, the United States may recover three times the amount of its losses plus applicable penalties.

The Justice Department’s Civil Division, Commercial Litigation Branch, Fraud Section and the U.S. Attorney’s Office for the Southern District of Texas (SDTX) are handling the matter with assistance from the Department of Health and Human Services (HHS) Office of Inspector General. The case is captioned U.S. ex rel. Pinto v. Nassenstein, No. 18-cv-2674 (S.D. Tex.). CII and its current owner, Sam Kancherlapalli, previously settled related claims arising from the conduct described above. See “Mobile Cardiac PET Scan Provider and Founder to Pay $85 Million to Resolve Allegedly Unlawful Payments to Referring Doctors.”

SDTX Assistant U.S. Attorney Melissa M. Green and Trial Attorneys Samuel  Lehman and Jake M. Shields of the Justice Department's Civil Division are handling the matter.

The investigation and prosecution of this matter illustrates the government’s emphasis on combating healthcare fraud. One of the most powerful tools in this effort is the FCA. Tips and complaints from all sources about potential fraud, waste, abuse, and mismanagement, can be reported to the HHS at 800-HHS-TIPS (800-447-8477).

The claims asserted in this case are allegations only, and there has been no determination of liability.