A doctor who appeared on a hit Bravo reality show was arrested on Long Island -- accused of stealing the identities of cast members of the show in a scheme to obtain prescription drugs, according to law enforcement officials.

Dr. Francis Martinis -- a urologist in Fort Salonga -- and his wife, Jessica, who both appeared in the hit Bravo reality show franchise "Below Deck," are accused of allegedly using the personal information of other cast members to write bogus prescriptions for oxycodone.

Investigators said the scheme started to unfold earlier this year, when Jessica went to a pharmacy in Kings Park in an attempt to fill a bogus oxycodone prescription in January. According to those officials, the hand-written prescription raised concerns, prompting a pharmacist to call police.

A subsequent investigation revealed that the doctor had sent dozens of prescriptions for oxycodone to Suffolk County pharmacies over a two-year period, law enforcement officials said. Many of these prescriptions were allegedly fake -- written under the names of two "Below Deck" cast members.

Investigators said that Jessica would pick up the prescriptions and pay in cash as part of the alleged plot.

"Doctors are supposed to be trusted members of the community and with that trust comes a tremendous amount of personal and professional responsibility,” said Suffolk County District Attorney Raymond Tierney. "Physicians are held to a high standard, as they take an oath to uphold a number of professional ethical standards when they begin their careers. The conduct Dr. Martinis allegedly engaged in with his wife not only violated this oath, but it also violated the law."

The duo was arrested in May and charged with eight counts of criminal sale of controlled substance and falsifying business records, law enforcement officials tell NBC New York.

Investigators did not reveal if they believe the couple were using, reselling the drugs or both.

Former New York Homeland Security Director Michael Balboni explained the allegations are serious, especially amid an ongoing national addiction and overdose crisis.

Balboni said, "He abused the celebrity position that he had on that ship to take the identities of his crew members -- if that is proven -- and then use that to buy drugs, that is a common scheme for a common criminal."

The pair were among the guests who chartered Sirocco, a luxury yacht that set sail on the French Riviera in 2019 and had part of their trip documented for "Below Deck Mediterranean." The doctor was also a guest once again the following year, this time on another Below Deck spin-off, "Below Deck Sailing Yacht." The series featured life on a 180-foot sailboat that cruised the Ionian Sea.

Following their appearances in the franchise, the doctor and wife duo attended promotional events with other crew members.

Peter Crusco, an attorney for the couple. said they both pleaded not guilty and that the "evidence will show the charges are bogus and cannot be substantiated."

"The DEA is rooted in an 'all hands on deck' approach to save lives from illegal drug misuse and abuse through enforcement, education, and prevention," said DEA Special Agent in Charge Frank Tarentino. "We identified two individuals who brazenly diverted controlled substances intended for medicinal purposes to the illegal drug market.  These arrests are a reminder that a doctor’s illicit drug diversion can lead to irreparable harm like the drug overdoses and poisonings currently plaguing our nation."

Bravo did not respond to a request for comment from NBC New York.

The two are scheduled to appear in court Thursday.

Balboni said, "Prosecutors will want to send a message to all other physicians -- you have special access to these drugs, you know how they work and if you do this you will be prosecuted."

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