Slideshow: OIG's Most Wanted Fugitives 2014

The Office of Inspector General has again added to its list of the most wanted healthcare fugitives. In all, the OIG is seeking more than 170 fugitives on charges related to healthcare fraud and abuse.

Photos in this slideshow were obtained from the OIG website.

In July 2013, Sandy De La Fe was indicted on charges of conspiracy to commit healthcare fraud and healthcare fraud. Investigators believe that De La Fe participated in a prescription drug fraud scheme that bilked Medicare out of millions of dollars. A warrant for De La Fe's arrest was issued in July 2013, but he could not be located. Investigators believe that he may be residing in Cuba.

On September 11, 2012, Firas Alky was indicted on charges of healthcare fraud conspiracy and conspiracy to pay and receive healthcare kickbacks. Investigators believe that Alky and his co-conspirators submitted millions in false claims to Medicare for home health services and other medical services that were either medically unnecessary and/or were not actually provided. Investigators believe that Alky fled the United States in 2012 and may be residing in Iraq.

On October 7, 2013, an arrest warrant was issued for Errol Elrington, M.D., for racketeering, Medicaid fraud, and healthcare fraud. Investigators believe that Elrington falsely billed Medicare and Medicaid more than $400,000 for services that he never performed, and he employed an unlicensed physician who engaged in criminal sexual misconduct. Elrington fled the United States for Belize less than 24 hours after being interviewed by Federal and State agents. He remains a fugitive at-large.

In August 2006, couple Aiza Rodriguez and Daniel Guerra were indicted on charges of conspiracy to defraud the United States, commit healthcare fraud, and pay kickbacks; healthcare fraud; conspiracy to commit money laundering; and money laundering. Investigators believe that Rodriguez and Guerra received more than $9 million in Medicare reimbursement for durable medical equipment (DME) that either was medically unnecessary or was never delivered to a qualified Medicare beneficiary. Rodriguez and Guerra fled the United States shortly after a warrant was issued for their arrest. They resided outside Madrid, Spain, until they were incarcerated. U.S. authorities are currently working with the Spanish Government to have the couple extradited to the United States to face charges stemming from their indictment.

On May 6, 2008, Marina Nazarova was indicted on charges of conspiracy to commit healthcare fraud, healthcare fraud, and criminal forfeiture. Investigators believe that Nazarova and her co-conspirators billed Medicare more than $2 million for durable medical equipment (DME) and supplies that either were not provided or were medically unnecessary. Investigators believe that Nazarova fled the United States and is currently residing in Russia. Nazarova remains a fugitive.

On February 18, 2014, Nuritsa Grigoryan was convicted on charges of healthcare fraud conspiracy, aggravated identity theft, conspiracy to misbrand pharmaceutical drugs, false statements to the Federal Government, and conspiracy to use other persons' identification documents in furtherance of fraud. Grigoryan, along with co-conspirators Dr. Kenneth Johnson and Artak Ovsepian, were found guilty for their roles in a $20 million healthcare fraud scheme involving fraudulent prescriptions for expensive antipsychotic drugs. Grigoryan was scheduled to be sentenced in June 2014. She was released after trial and ordered to wear an ankle monitor. Investigators believe that Grigoryan removed her ankle monitor. Grigoryan may be residing in a hidden location in the greater Los Angeles area or may have fled to Armenia after recently obtaining travel documents from the Armenian Consulate. Ovsepian is currently in custody and awaiting sentencing while Johnson is being monitored before being sentenced.