"I must stress this is a serious action and we do not take it (lightly) and it is not done frequently," organization spokesman Sean Tipton said.
According to Suleman, the Beverly Hills doctor implanted six embryos in her uterus last year. That exceeds national guidelines for a woman of her age. Thirty-three-year-old Suleman already had six children and was unemployed when she gave birth to the octuplets in January. However, the group says Kamrava's expulsion was not based solely on his work with a single patient.
"There was no specific case," Tipton said. "It was a pattern of failure to live up to our standards."
Despite being forced from the organization, Kamrava is still licensed and can continue to practice medicine.
AP and CNS contributed to this report.