Called one of our cell phones. Left message claiming to be from office of "Dr Chefsky" at Kaiser Permanente. Not one of our doctors. Note: I've received some bogus calls claiming to be from Kaiser Permanente--a hospital in southern CA--so I didn't follow-up on this call.
SORRY
This is legit Kaiser nurse line. They will give you a call-back number. I have unblocked (sorry thought I was in my recent call list vs message list; have UN-blocked)
This is a Kaiser line for the neurology department. I think it's Vandever specifically but it's a nurses line like Jeanne said. khc probably got a wrong number call from them awhile ago but this is a legitimate number. (Unless it's being spoofed.) Got a call back from them and answered when I saw Jeanne's post. Confirmed.