A Long Island psychiatrist is accused of illegally selling prescriptions for highly addictive painkillers to patients who did not have a medical need for the drugs.

Prosecutors say Dr. Nasreen Kader was arrested after patients' families started complaining. She is facing felony charges of illegally selling prescriptions for controlled substances like Xanax, Klonopin and Ritalin.

An investigation into the doctor began in 2012 after two families complained to the state attorney general that Kader was over-prescribing powerful medications to their loved ones. The allegations triggered an undercover operation.

"On average, the visits were less than two minutes, so it was a quick in-and-out," said prosecutor Lara Merchan. "There was a complete lack of medical evaluation or discussion of symptoms or concern for the patient at all."

Merchan says Kader's goal was to get a prescription written and the patients out of her office in a timely fashion.

Defense attorney Douglas Nadjari called the allegations against Kader "an ill prepared case."

"It's not supported by medical testimony or medial analysis and we'll let the rest of it play out in court," said Nadjari.

Kader faces 15 counts of criminal sale of a prescription for a controlled substance. She faces 5 ½ years for each of those counts. She was released Tuesday afternoon with no bail. Kader was forced to surrender two passports and her travel is now limited to Nassau and Suffolk counties.