Are your expenses per year or per month?
Having an office nurse, an office manager/bus admin, and coder - for $118,000 - that's around $40k per person (if equally split, which you may not do) - that includes salary, benefits (401k, health, dental) - remember as an employer, you are responsible for half of their social security and medicare taxes. $40k/year (including benefits) means a very low salary with benefits, or below market salary with benefits
According to salary.com, the average office LPN nurse salary (median, $44.4k) and that doesn't include fringe benefits (plus you have to account for social security and medicare taxes that the employer pays, which is not considered benefits/compensation)
http://www1.salary.com/Licensed-Practical-Nurse-Outpatient-Clinic-Salary.html
Median salary for medical billers is $34.6k
http://swz.salary.com/SalaryWizard/Medical-Billing-Clerk-Salary-Details.aspx
Median salary for a medical office manager is $66.8k
http://swz.salary.com/SalaryWizard/Business-Office-Manager-Healthcare-Salary-Details.aspx
Good employees are worth their weight in gold.
If you paid median wage, that alone is $146k. Add an additional $9k for their social security that you're responsible for, and $2k for medicare tax that you're responsible for, and that's $157k for employee expenses without any additional benefits. A rule of thumb is that benefits usually cost 30% of employee's salary (not exactly true) so let's assume you are a nice employer (or someone who wants to attract and RETAIN competent employees), employee benefits will cost you $44k (30% of $146k)
http://www.bankrate.com/finance/financial-literacy/the-value-of-employer-benefits.aspx
So labor cost would be closer to $201k
Malpractice Insurance, Workman Comp, Unemployment, and Business Insurance will certainly cost more than $1000/month (if the $12000 is your fiscal year budget). Obviously this is very dependent on where you practice - high litigation areas will have much higher premiums than lower litigation areas. Medical malpractice insurance may be as low as $12000 if you're in the right spot, in the right field, with the right claim history, but may be as high as $200,000. Business Insurance, 3rd party liability insurance, WC, unemployment insurance also varies in prices. But I think $12k for the whole thing is a low and unrealistic estimate
Your medical office rent is also dependent on where you practice, and how big your office is. Downtown Manhattan, SF, Austin, etc will be more expensive than middle of nowhere flyover state. Rent can vary between $9-$15 per square foot per year, to $25-$30 per square foot per year.
A 3500 square foot office, at $12/SF/year is around $42.5k
And I haven't even address cost of medical equipments, tests, as well as the time you and your employee have to spend (uncompensated from insurance company) for regulatory compliance (ie HIPPA security audits, PQRI, quality controls for your labs and medication samples, MOC maintenance for your boards, etc)
Remember, in private practice, you are also a small business owner. So you will need an accountant to help file your quarterly taxes. And your income is basically what you get paid minus all expenses. You get paid last.
/depending on the state, it may be months before you get paid for services billed (account receivable), depending on state budget, etc. When you start, it may be several months before you even get cash flow to pay your expenses (hence why a lot of business get start up loans), and you need a good office manager or accountant to keep track of those account receivables to make sure you get paid for your services
//remember, in addition to seeing patients, you will also need time to fill out paperwork (lots of paperwork) for your patients (FMLA, disability, pre-certifications, prior authorizations), answer phone calls from patients, as well as call them with results of tests, and also call insurance companies to appeal denials.
///you will also have to arrange coverage (call) for overnight and weekends and vacations.
////do it right, and you can make a lot of money (legitimately). However there are a lot of hurdles