This is largely in the eye of the beholder. Within neuro, I'd see it as a red flag if someone didn't have at least 1-2 first author publications.
As others have mentioned, many folks who are predominantly clinicians fizzle out of research pretty fast once they get up and running. It can be hard to keep up, but I encourage people to remain in the game - even as a collaborator on projects if you can. At a minimum it might give you a reason to attend conferences and get your institution to fund your travel.