A Brazilian native, Dr. Marttos has spent most of the past three years commuting back and forth from his home in Miami to ready the facility for the 2016 Olympic Games. He has been tasked with overseeing all trauma and emergency services during the Games. This includes the Olympic Village Polyclinic -- a mini hospital in the Olympic Village that provides everything from emergency services to dental care -- as well as the Americas Medical City facility, which is composed of two hospitals, one that will cater to athletes and the other to Olympic dignitaries and VIPs.
If someone needs to be rushed from the Olympic Village or the Polyclinic to the hospital, it should take approximately 12 minutes.
It's full-service healthcare that will be run by a staff of 5,000 doctors, nurses, and other medical personnel -- many of whom will volunteer to do these jobs.
While many of the larger countries taking part in the Games come with their own medical teams, many smaller countries use this as an opportunity to get basic check-ups and preventative care.
Dr. Marttos tells me that in the event of an injury, a doctor needs to be on hand right away. "My role is to be sure my hospital has everything in place. We have protocols and guidelines," he said. "It looks like an American hospital, they have everything ready, like my hospital in Miami."
As a reporter, I've been talking a lot about Zika, Rio's notoriously dirty water and even threats of terrorism. When I ask him how much of a concern this is for him, he says his priority is the athletes. "How to take care of the injuries. Everything else, terrorism, is not under our control. Brazil got ready. They did a lot of training."
He adds, "I can say that for all the athletes, for all the people inside the venues, if they need us, we're going to be ready to take care of them."
As we tour the nearly 500-bed hospital, I can't help but think of just how starkly different this facility is compared to the pictures of the public hospitals that Dr. Nahon showed me: rooms filled to capacity, patients waiting for days for emergency services -- sometimes dying before being treated -- and the body bag next to a patient.
I ask Dr. Marttos what he thinks of the public hospital situation. He's very diplomatic and says that sometimes the physical infrastructure isn't the same as here. The walls may not be as nice, the equipment not quite as new, but that the quality of the doctors is the same.
He's optimistic that perhaps the work that he has put into the facility here will be a legacy for the care for future Brazilians.
More people turning to public hospitals
I'm back in the command center for Rio's Emergency Response Battalion, feeling the pulse of activity. More than a thousand people help keep the ambulances running and responding to emergencies 24 hours a day. The control board fills an entire wall, tracking minor to major injuries with color codes of blue, yellow and red.
Doctors, both military and civilian, triage the calls, making sure that everyone who gets an ambulance truly needs one. They cannot afford to waste efforts, especially with the extra stress of the Olympics.
Lt. Col. Carlos Sima shows me around his command center with pride, and puts a good face on their lackluster response time and the well-known overcrowding of the hospitals they deliver to.
"The economic crisis has made it very difficult," he tells me. "Even people who used to afford private hospitals are now going to public ones to save money."
I ask him what his biggest concern is during the upcoming Olympics, and hear a familiar refrain.
"A terrorist attack," he says quickly. "We don't have history with that. We are used to big accidents and the like, but because we don't have a history with terror, that would be of real concern."