Dr. Michael Kamrava and Nadya Suleman
Jordan Strauss/WireImage; Nancy Pastor/Polaris
A national organization that promotes ethical standards in reproductive medicine tells PEOPLE it has ejected the Beverly Hills fertility doctor who treated Octomom Nadya Suleman.
The American Society of Reproductive Medicine had a hearing over the summer in which Dr. Michael Kamrava presented a defense, and the organization notified Kamrava a few weeks ago he was being expelled, ASRM spokesman Sean Tipton tells PEOPLE.
"This is not an action we take lightly, nor do we take it often," Tipton says, adding that Kamrava was expelled for "a pattern of failing to uphold our standards of membership."
Tipton would not get into the specifics of what Kamrava did wrong. But he did confirm that the group's investigation was sparked by media coverage of the octuplets
born earlier this year in Southern California after Suleman was treated by Kamrava.
Tipton says it's been widely reported that Suleman, a welfare mom who already had six kids, claims she was implanted with six embryos, two of which split during gestation. Tipton says that, in addition to revoking Kamrava's membership, the organization has released revised guidelines clarifying its position on embryo transfers. For women under 35, like Suleman, only a single transfer of an embryo is appropriate. If the doctor feels there are special circumstances, he or she can consider implanting a second embryo, Tipton says.
Kamrava did not return a call seeking comment. He has repeatedly declined to comment to the media about the case.
is an advocacy group – which is not the same as a board that certifies specialists or a state medical board. California's medical board has no record of disciplinary action against Kamrava, although the board indicated earlier this year that it was investigating Suleman's fertility treatments.