Ranking for "Town A" while having an address in bordering "Town B"

Let's say I'm targeting "dentist Town A".

A dentist in Town B sits a quarter-mile outside of the Town A border. This dentist serves the Town A area and naturally gets a lot of business from Town A.

Is it even worth trying to rank for "dentist Town A" if you have a "Town B" address?

I've generally avoided these because I don't trust Google and I would assume this dentist loses significant juice just for being outside the Town A limits.

Anyone have any insights on this?

I’ve ranked in this scenario for several different towns. In google top ten (not local pack results).

Normally create a page to target each town specifically.

Can be done. Just make sure you have a page on your target city. Depends on level of competition though. You'll struggle with map pack if there's already a load of places in Town A. Although you could rank the city page you make on organic.

Another idea is to use AdWords if your not able to get map pack ranking or organic.

Or if You're looking for black hat then ranking some parasite pages to drive traffic.

Ranking the GMB for multiple cities is going to be difficult, the searchers proximity plays a large part in the results the searcher will receive.

I would try to rank an organic page to be honest with you... Assuming the competition level is favorable.