An Omaha doctor has been charged with first-degree sexual assault and witness tampering after a woman says the 83-year-old man forcibly performed oral sex on her.

The 26-year-old woman told police Nosrat Massih invited her to his Omaha condo to look it over, then removed her clothes and forced himself on her. She told police Massih had been drinking.

Massih was charged Wednesday and posted 10 percent of a $20,000 bail to be released from jail. Online court records do not show that Massih has a lawyer. Massih could not be reached Saturday for comment.

His preliminary hearing on the charges has been set for April 29 in Douglas County Court.