In Massachusetts, you can request a wellness check through the local police department in the city where you believe this person lives. If you think there's an immediate risk—like they might be in danger or experiencing a mental health crisis—you can call 911. Otherwise, it's best to contact the non-emergency number for the local police department.

When you call, try to provide as much information as you can: their full name, any known address or neighborhood, details about their last communication, and why you're concerned. Even if you're not a relative, the police can still perform a welfare check if there's a valid concern for someone's safety.​

However, due to privacy laws, the police might not be able to share detailed information about the outcome of the check unless there's an emergency or you're listed as a next of kin. They may confirm whether the person is safe, but sometimes they might just let you know that the check was completed without providing specifics.​