Lots of people wear scrubs in a hospital setting, but only a tiny percentage actually "scrub-in" for surgery.
For the rest of us, it's just comfy jammies to wear at work, and the usual crap like keys, etc. gets carried in the pockets.
If scrubs are just work jammies for you, your options are much greater; everyone has phones, pagers, etc. clipped to their waist and pockets full of other stuff. The answer is to carry in plain sight, but in something that blends in to the environment.
Although you prefer something not on the waist, I've spent years wearing scrubs every day while carrying a Kahr PM9 in a DeSantis Pistol Pack clipped to my waist, along with phones and pager. In all that time, nobody (including the Security guys and numerous cops) has so much as looked twice at it.
The Pistol Pack is ostensibly made only for LCP-sized guns, but the PM9
will fit. You aren't going to out-draw Jerry Miculek, but it's a helluva lot more comfortable and accessible than an ankle holster.
Pistol Pack