yes, they can. you sign a document agreeing to allow them access.

wow, there is a red flag about enlistment. If its a fraudulent enlistment, meaning you intentionally covered up, lied, falsified or neglected to report something, and the Military finds out, your in big trouble. You will probably get a bad conduct or dishonorable discharge. that will follow you the rest of your life. Some people get away with it and some do not. Let me suggest that you apply for a waver to enlistment if its a medical issue. If its something that will keep you out of combat, you will be denied enlistment. Like diabetic or on medication that you could become separated from or unable to refill, those are areas that will keep you out of the military for example. If its drug related, or dependency of substance, or whatever, its risky trying to cover that up. Most any medical doctor can assist you in getting into the military under medical wavers. If your concerned about you medical records becoming available to a military investigation, I think you should stay out of the military. I think your to be respected for wanting to go into the military, but what is the point of going in under false pretenses with a greater than average chance of getting caught and messing up the rest of your life.

like others said yes but with your consent on your enlistment papers there is a waver that you have to sign to get in saying they can. if you lie and they catch you witch they will in due time, they will charge you with fraudulent enlistment, article 132 which is a charge for just about anything, and falsifying a government document and two of these are brig time. so you would be looking at about 3-8 years in jail a huge fine and a bad conduct discharge which is basically saying you got charged with a felony making it really hard to get a job in the civilian sector

Yes. You give them permission by way of your signature on the bottom of the SF 89 Report of Medical History. Don’t hide anything. If it is a disqualifying condition it will only lead to your separation (usually in basic training) and will waste time, money and the talents of others to do that.

yes they can without your consent. if you are going in the military, you will sign a waiver of consent or else you will not get in. and they call or visit every doctor that you’ve come in contact with. they, being the military, want to know if there is anything wrong with you physically or mentally. its for their own protection, can’t have a crazy individual out on the firing range with a loaded rifle or someone that might flip out when in combat.

It would be best to enlist honestly. It will save you a lot of jail time later on.

Not directly.

They can require you to provide records in specific cases to to specific personnel.

Only if you provide it to them. Are you trying to hide something ? Better not, it will come back to bite you later.