The Mayo Clinic Graduate School of Biomedical Sciences offers PhD and MD/PhD training opportunities. Their unique funding model awards all PhD students 5-year internal fellowships to select the mentor of their choice, and has no teaching requirements. There is no application fee or GRE requirement. The application deadline is December 1st, and you can learn more and apply here.
The Post-Baccalaureate Research Education Program (PREP) is the oldest competitive NIH-funded program of its type. It is designed to enrich PhD and MD/PhD-bound students’ educational experience, and is specifically tailored to students who are typically underrepresented in the biomedical sciences. The application deadline is April 1st, 2021, and you can learn more and apply here.