What can be done about racist medical practices in the USA?

In my Anthropology class today, we read in our textbooks that heart disease kills more black Americans than any other racial group in the US. I had heard this and thought it was genetic. I thought black people were more prone to getting heart disease or else it was somehow worse in people of African descent than in people of non-African descent. However, the article in our textbooks stated that a big reason why more black Americans die from heart disease than members of other races is because they are either not recommended for proper medical treatment or because being that a large portion of people below the poverty line in the US are black they simply cannot afford proper medical treatment.

In addition, the article cited studies done where doctors did not know the race of their patients but simply reviewed the patients’ tests and records and recommended correct medical attention accordingly. Those black Americans were given proper medical attention.

What does the collective propose can be done about this?