I'm going to play the devil's advocate regarding one of the suggestions that has been floating around, and say that because there are no active ripperdoc player characters, it makes no sense forcing us to procure one to steal chrome (a very important aspect of combat aftermath) from the corpse of our victims. No legal corporate doctor is going to accept a blood stained Mixer hauling a corpse to have its chrome removed. And at the same end of the spectrum, ripperdocs won't be always active and considering that chrome rots over time, it seems slightly unthemely to have to throw your chrome away because the single ripperdoc PC (or no PC at all) wasn't available. Of course there are NPCs for this circumstances but honestly I don't feel like we're doing the game a favor by adding this sudden huge workload to staff by having to puppet ripperdocs removing chrome from a corpse. And unless you don't know what you're talking about, you'd agree that stealing chrome from corpses happens all the time and is a major motivator behind combat.
I'm not saying it's a bad idea, I'm saying first you should make playing a ripperdoc easier before forcing the players to procure characters that don't exist in order to progress with their plots.
Instead we need to understand why there are no ripperdoc characters. So I'm going to lay out some common misconceptions according to my interpretation of the situation.
1) "No characters to do it" -- bullshit, characters have been constantly forced out of their comfy jobs in gold and green. However some players simply refuse to become a ripperdoc in the underbelly of society. It's not their playstyle. I would welcome the staff try to push some characters in this direction in more obvious ways.
2) "Setting up your own clinic is too expensive, no player has 350k to dump into ultra expensive gear" -- true but inconsequential and irrelevant. There are IC ways you can be a ripperdoc without paying a single chy. There's a very stablished, old and popular character in the game that could take your character as their mentor and let you use their clinic for a cut. Why aren't you guys pursuing this venue? Instead of bitching how expensive everything is? By design, setting up your own clinic is intended only for oldbies or corporates. When you want to start your own business you first start by working for somebody else, saving flash, learning, growing. The GMs will ALWAYS support your plots and your goals as long as you RP for it. RP for it doesn't mean slaving it away to buy each part of a clinic one by one. It means making the right contacts and earning the right favors.
With this being said I would like some of jwimpeney's and Grizzly666's suggestions to begin promoting the archetype:
1) Give more power to acquire chrome and nanos via illegal black market ways. This can be in the form of a NPC shop in one of the seediest, most illegal, shadiest places in the City (rings a bell?) or a vending machine or whatever, those would be naturally cheaper than buying it at the original corpie vendor. However this NPC must only sell to a certain list of players, i.e. certain types of fixers, or certain type of characters. If you don't like this just buy it from a fixer.
2) New type of illegal chrome would be awesome for the long term, given how difficult it is to add new types of chrome that's not just nanogenics but I totally love it and those would be obviously illegal and blatant in their appearance but also carry certain disadvantages. Higher PDS penalty points, upkeep, things like that.