I worked there as a contracted employee. After beginning, I found out that if a job is posted, internal employees will be interviewed first. The company encourages internal employees to bid on positions to learn as much about the culture as possible. For this reason, you really do not have an advantage if a job is posted, especially if a qualified internal applicant wants the same position.
The culture is positive, and the employees have a lot of fun together. There is a high expectation on professionalism, strict adherence to procedures, and positive attitude.
One important note: employees are expected to adhere to a very strict dress code. If you have tattoos, they must be covered up. The reason is that Tattoos draw the attention to the person with the tattoo; instead of the focus remaining on the patient.