I would think the answer is pretty simple, and this is being over-thought by everyone here.
Text the provider, ask if they would entertain someone they know IRL, go with the flow.
Their first response (if it's not an immediate yes or no) will be "who are you?", obviously. Assure them you aren't married to their best friend, or are their neighbour, or something else that would be awkward. I would imagine this would be the deciding factor for providers to determine whether they'd see you or not. You might not care about awkward interactions in the future, but they probably do.
I wouldn't do this if the provider is much more than a casual acquaintance, however, or if you see them IRL more than once or twice a year at functions, work, etc. I wouldn't do it if they were friends of friends (or friends of family). I also wouldn't do this if their ads do not have face pics. If they do have face pics, then they are unlikely to be concerned about who knows what their profession is. If you have identified them by a tattoo or the background of their pics or something else other than their face, that's just creepy, man.
More importantly - keep in mind that there would likely be some sort of pressure for them to say yes if you identify yourself, for many reasons. They may feel that saying no to you could lead to awkward situations in the future, and that's a legitimate concern.
In short, I wouldn't do it, personally, but it would also depend on how I know them and vice versa. If she's a bartender or waitress at a place I frequent and she knows my name, then maybe. Anything else, probably not.
I also would not do this if you have anything to lose (spouse, job, etc.) You may "know" this person, but most of us who do this do so anonymously, and for good reason. Highly likely it would come up in conversation at some point, and somebody else will know your identity as a result.
