Thank you for your question.
There are a variety of summer medical programs in the following article: Medical Summer Programs for High School Students.
We hope that the programs in the article may be helpful. If you are looking for other options, it may be useful to contact a local college to see if they have opportunities for a course or program for high school students connected to the medical field. It may also be helpful to contact a local medical facility to see if there are opportunities for high school students such as shadowing a professional or volunteering.