Yes this is the layhe client I have received calls from there and I have called back and talk to drs there.
Don't worry folks this is not scam. They can't leave a message cuz maybe they are unsure of whos number they are calling.
This is Lahey Clinic in Burlington, MA. For me, it's always a reminder of an appointment I have. But it is their general phone number going out so you can't tell what extension/department they are calling from. So I always let it go to voicemail anyways because they always leave a detailed message with all the information I need.