Wow ... lots of questions. For starters, the ACS has a practice managmement CD you can order. They also have a residents program at the annual meeting that covers some of this. The various medical finance throwaways are also good. I like Medical Economics. (
www.memag.com)
Medical group practice is a small business - similar in many respects to a dry cleaner or a fast food restaurant. There is an owner (the partners), they hire employees (nurses, techs) and have expenses (rent, supplies, malpractice.) They have customers (patients) who pay for the services they receive. The owner pays all the bills and keeps what remains. No guarantees and every expense comes directly out of your pocketbook.
Billing: you hire someone. Successful large practices have a billing staff to negotiate rates and terms and handle billing. It has become a very complex process. There are LOTS of private courses (including the ACS) on billing alone
Patients: Most of the volume in a general surgery practice is breast, hernia, lap chole and lumps and bumps. Those referrals come from primary care physicians. (CT surg referrals come from cardiologists ... you get the idea.) You get more patients by making your referring docs happy. Some of this is making your patients happy so they say good things about you to the PCP. The other part is being easy to work with, quickly scheduling appointments, keeping the PCP updated with the patient, etc. Advertising has very little role in most surgery practices (cosmetic and bariatric being notable exceptions.)
Insurance: You don't have to take Medicaid (government insurance for the poor.) You don't have to take Medicare (government insurance for the old.) You don't have to take commercial insurance at all. You can demand payment in cash, upfront. The question is how do you bring in enough business to support yourself that way. The dermatologists manage to run cash only practices because they have limited the supply of new dermatologists being produced. Surgery hasn't done that and in most places surgeons don't have much leverage about which insurance to accept. In areas where demand>supply (typically rural areas and small cities), surgeons have better pricing power
Schedule: 4 weeks vacation in one block is certainly more possible in a group practice than solo practice. I don't think it's common because it would make life difficult on your partners (taking more call, seeing your patients in follow-up, doing more cases), your patients (having to schedule followup with another doc) and referring docs (I'm sorry, Dr. X's next appointment is 6 weeks away) The other issue is length of annual vacation - 4 weeks/year is relatively typical. The surgery business model doesn't accomodate 8-12 weeks of annual vacation like anes/rads do.
Staffing: Turnover - not if you are a good place to work. Pay - people do surveys on this. You can find out what 25/50/75th percentil salaries for an LPN in a small town in the south is. This isn't really an issue for surgeons because their practice expenses are pretty limtied. Most surgeons spend 1/2 to 1 day per week in clinic. That means that 5 surgeons can probably share 1 receptionist and 1 medical assistant. On the low end, figure that the expenses to pay those people is $50K/yr = 10K/surgeon. Double that and 20K isn't so bad. The bulk of a surgeons time is spent in the OR where the hospital covers all the overhead. Contrast this to a PCP who is in clinic 40 hrs/week and depends on a very efficient clinic staff to move patients through quickly. In that case, each PCP might need to support 2-3 full time employees.
How much money: It just depends. How many cases do you do? How much do they pay? What are your expenses? If you are fast and live in a high-reimbursement, low-expense community, $500K is doable, likely more. Live somewhere else and you might be literally struggling to stay in business.