Intern applicants have rated the interview process at MSD Partners with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 50% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Initial 250 word submission followed by a 30 minute phone screen if you advance. Didn't advance beyond this but I imagine there to be more rounds, talking to more people in the team.