MLIS Graduate Certificate?

Hi! I’m in school to become a librarian and I am very interested in clinical data and the medical librarian sphere. Because specific librarian jobs are a bit hard to come by, I’m aiming to get as much experience as possible (internships, volunteer work, etc). Someone recently recommended that I get a graduate certificate in health informatics and or human-centered data science (FSU). Has anyone done this? Was the information provided beneficial, and do employees appreciate this?