Im not aware of anyone that has started a medical corp doing pathology professional services (consulting is a different story, lots have done that) that had less than 10+ years of experience other than myself. The challenges in terms of the business and law aspects are very daunting and that isnt even mentioning the political sphere.
Frankly, we are in a different era. There really is no new hospitals being constructed where trainees could create a base of operations. That said, there are a ton of at risk contracts where the admin is disatisfied with the group and would like change. The key is identifying these at risk locations and marketing yourself.
Most as in 99%+ of pathologists go down this path:
either they are employees for life in Kaiser, Academia or Government type operation
OR they join a practice and become partner
there are maybe a handful of people in the whole state of California that filed for an S-corp, got a fict. name from the state medical board and actually created a business. Most if not all are >60 years old. For me, this was the ONLY way to go, otherwise I would have felt I had sold myself short. If you want to do this dont give up. It is a long journey but being your own CEO is the most rewarding thing Ive ever done.