How do I obtain medical records of my biological father.?

Question:

How do I obtain medical records of my biological father.?

I was adopted so my last name changed and there is no record of what my last name was.

Additional Details

5 months ago
He left my mom and I when I was about 1 when I turned ten my mom remarried and the guy she married adopted me. I asked his family for help but they said no. What can I do that it won't cost a fortune.

5 months ago
Biological father is dead at young age something to do with his heart so this is why I'm looking into medical history for my sake and my twin boys.

Best Answer - Chosen by Asker: 5 months ago
He left my mom and I when I was about 1 when I turned ten my mom remarried and the guy she married adopted me. I asked his family for help but they said no. What can I do that it won't cost a fortune.