Dr. Brian Levy said he was trying to think of some way he could help the National Guard and was inspired by his son Chris, who just finished a tour with the Guard in Afghanistan.

Now, one age-waiver and one swearing-in ceremony later, he'll be headed to San Antonio for officer-training.

After that, he'll report to his first assignment in Durant, with the 180th Cavalry Squadron.

He says some might worry about the drawbacks of his age, but he sees the benefits of 30-years of medical experience.