"Such assertiveness came in handy when Wojcicki was visiting her grandmother in a Palm Springs care home several years ago and couldn’t find a doctor in the building."

The nursing homes I'm familiar with have nurses and a doctor who comes in one day a week, and takes calls from staff. If anything significant comes up the resident is taken to the ER.

A care home with a doctor on staff full time (let alone 24 hours) would likely be significantly more expensive.

I suspect Wojcicki's grandmother couldn't afford that. And it's probably overkill.