I am not exactly sure what you mean by a Podiatrist working full time in a hospital. If you are referring to Podiatrists having privileges in the hospital, I think that many of the Podiatrists today have privileges at the hospital to see consults, admit patients, perform surgeries in the hospital OR, etc.... There are few Podiatrists that even take foot and ankle trauma call in hospitals. However, majority of these Podiatrists are either in solo private practice, Podiatry group practice, multi specialty group practice, or ortho groups. Some of these groups or solo practictioner may have offices in the hospital medical office complex. There are few Podiatrists that are hired by a health networks / hospitals, such as Kaiser Permanente, VA Hospitals, etc... Thess Podiatrists are paid by the hospital but they still see patients in practices or clinics in the hospital.
As for most graduates working for Ortho group after residency, this is still not very common. Majority of the Podiatry residency graduates are joining other Podiatry groups, multispecialty groups, or starting their own practices. There are some that do get to join an Orthopedic group and this will continue to increase over time. However, the percentage of grads working for an Ortho group will remain a small percentage as compare to working for a non Ortho group for the next couple of years. The opportunites are out there if one were to look for these opportunities. I just wanted to make sure that you understand that majority of the PM&S-36 residency grads will probably not work in an Ortho group. Remember, there are many successful Podiatrists out there that do not work in an Ortho group and are doing tons of reconstructive rearfoot surgeries.
All I can say about starting salaries is that it varies greatly. It depends on a multitude of factors.