Here is an article from Leatherneck Magazine by a former MEF Surgeon and the current Brigade Commander at USUHS, Dr. Sean Hussey:
The 3rd MLG Surgeon position in Okinawa is still open. It was originally advertised in this post and a position description is here, and it is still available. Historically, excellent performance in senior USMC leadership positions has led to promotion to O6, so any CDRs out there should strongly consider applying for this position. I’d even apply if I was a senior LCDR. It is due to be filled in summer 2017. Contact your Detailer if you are interested.