Billing for OMM is around 75% of the DO's practice that I currently shadow. I am in awe of how he works, as he commonly spends 30mins with every patient, while both assessing all of their health needs and performing OMM. He makes the same as a Doctor who would see 4 patients an hour because of the way he is paid, which is for a normal consultation and OMM (twice the cost for a visit). Patients only need to pay one copay for a visit, but their insurance pays double the amount back to the doctor of a normal visit. His billing office is run by a former DO school's head of billing and he has no problems collecting. I should also mention that he only works 4 days a week for a total of 30 hours a week and makes a very comfortable living.