Grant Bonavia Credit: Department of Defense

A radiologist at Walter Reed National Military Medical Center hit by a truck on Wednesday night a block from his home in Kensington is recovering following multiple surgeries and blood transfusions.

Grant Bonavia was standing on the sidewalk waiting to cross Connecticut Avenue with his bike, on his way home from work. his wife Mattie said Friday morning in an interview. A pickup truck hit Bonavia, pinning him against a utility pole. Authorities said the truck that hit Bonavia was part of a crash involving at least three vehicles. Montgomery County Fire & Rescue said four other people were injured.

Bonavia, who turns 49 on Tuesday, had multiple injuries, his wife said, and is in intensive care at Suburban Hospital in Bethesda. Mattie Bonavia said her husband has had trauma surgery. She said Monday that he was scheduled to have surgery on his ankle this week and had blood clots in the lower part of his legs.

“He’s just broken in so many places,” she said.

Mattie said her husband is on active duty as a commander in the Navy.

Grant, according to a 2016 article on the Department of Defense’s website, has also been the interim chief of the research department at the National Intrepid Center for Excellence — a division of the Department of Defense that researches traumatic brain injuries of veterans. He is credited in a number of scholarly articles on traumatic brain injuries in the military.

Mattie said she was at home, about a block away, when the accident occurred Wednesday.

“I heard sirens, and I thought, ‘Oh, no. There’s been an accident,”” she said.

Then Mattie got a call from a woman asking if she was Grant’s wife. She went to the scene, and found a horrifying sight.

“When I saw all the blood that was there, I knew we were in trouble,” she said.

Mattie  said that in addition to first responders at the scene, a woman who was a bystander played a key role in saving her husband’s life by applying a tourniquet to stop his bleeding.

“I really want to find this woman’s name,” she said.

Mattie  said her husband, a 19-year Navy veteran, is in good physical shape and thinks that contributed to his survival.

“I don’t think another person could have survived this,” she said.

Grant  has been conscious at times, his wife said, and the two have talked. He remembers the accident “vividly,” she said.

Doctors don’t know how long he will be in the hospital or whether he will fully recover.

“We’re lucky that he’s alive,” she said.

Mattie said that since Wednesday, she has been home only once, briefly, to shower, and has spent all of her time in the hospital, getting almost no sleep.

Her three daughters have visited, including her oldest, from Syracuse University in upstate New York, where she is a student. Mark Hughes, a pastor at Holy Redeemer Catholic Church in Kensington, where the Bonavias are members, has also visited.

A community listserv for the Bonavias neighborhood included an email Thursday that Grant  had 15 blood transfusions in 12 hours that helped save his life. The message urged people to give blood to their local Red Cross chapter.

Mattie  said she is grateful to the community for supporting their family.

“My phone is constantly blowing up. I keep saying the same thing. Please give blood. It’s so basic when something like this happens,” she said.

There have been 14 crashes at the intersection of Connecticut Avenue and Saul Road since April 2015, according to data stored by Montgomery County, five of which resulted in an injury.

“He was standing on the corner waiting at the light. He was standing on the sidewalk waiting for the light to change to tell when he could walk across,” she said. “He was just standing there on the sidewalk, minding his own business.”

Mattie , becoming emotional, said the area needs to be safer for motorists and pedestrians.

“We just need to slow folks down a little more. … People shoot the gap and try to get across all those lanes … and try to do it themselves without a turn arrow,” she said.

Dan Schere can be reached at