A lot of people get confused about how to use these words. Maybe this will help.
to marry (someone)- this is the general verb. It is the time when people come together as husband and wife. Do not say I married with someone. It is not correct. And do not say I married to someone. It is also incorrect.
Correct example: I married Sam 3 years ago.
to get married- this talks about the time two people got married. It makes us think of the wedding.
Correct example: I got married.
to get married to (someone)- We think of who was married in the wedding. Do not say I got married with someone. It is incorrect.
Correct example: I got married to Sam.
to get married in (someplace)- We think of where the wedding took place.
Correct Example: I got married in Hawaii.
to be married- This means a state of being. Are you married or are you single?
Correct Example: I am married.
to be married (to someone)- Also state of being. But who is married to you?
Correct Example: I am married to Sam.
Conclusion- When you use to marry or to get married, think about the wedding. When you use to be married, think about the person's life now.