This is my version of a definition, but the best legal definition of direct primary care is here:

FOR THE PRACTICE TO QUALIFY AS A DIRECT PRIMARY CARE PRACTICE THE PRACTICE MUST:

1) CHARGE A PERIODIC FEE

2) NOT BILL ANY THIRD PARTIES ON A FEE FOR SERVICE BASIS, AND

3) ANY PER VISIT CHARGE MUST BE LESS THAN THE MONTHLY EQUIVALENT OF THE PERIODIC FEE

Thank you Dr. Eskew.