Is it appropriate to call police for this?

Hello, I have been in Germany for a few months now and I’m just looking for advice/resources for a situation.

Every night lately, there has been a person screaming super loud for hours in the middle of the night. They are standing in front of a hospital entrance and it seems like the hospital doesn’t care and I’ve never seen police out there for this person. It’s affecting our sleep since even with our windows closed, we hear this yelling for hours at 22:00-02:00. We also walk our dog at 22:00 so it’s very unsettling since this is basically across the street from us.

This person seems unwell and I don’t really know what resources there are in Germany for this situation. Is this a situation for police? Thank you for any advice.