Attorney General Beau Biden announced the verdict Tuesday.
While working for American Eagle Reserve in 2008, Meehan allegedly sold the coins to an investor in Delaware at a much higher price than they were worth.
According to Meehan, the coins were worth 15% of what the investor actually paid.
The victim was a quadriplegic, who was only able to communicate with computer assistance.
"This defendant preyed on his victim's trust. His scam deprived this vulnerable victim out of necessary funds that he would have used for his own considerable healthcare needs," Attorney General Biden said.
The court emphasized that at the time Meehan committed the crime, he knew the victim was physically impaired.
At sentencing, Meehan admitted that he was taught how to lie, how to manipulate, and how to pray with clients over the telephone in order to gain their trust.
Meehan was also sentenced to up to five years probation, and ordered to pay $200,000 in restitution back to the victim.