The affordable care act has enrolled millions on to some kind of health insurance plan. Even if you are stuck with a high deductible plan, oftentimes that annual check up (preventive care) is fully covered without requiring a deductible payment. And, of course, if you are on Medicaid - you have Medicaid.

If you are relatively young and/or healthy, that's all you would really need.

As a result, their patient population likely gradually dwindled.

I was a proponent of dpc at one point but, now enrolled in a high deductible plan myself, i don't see as much need for it personally. I'd rather take the money and throw it into my health savings account and use it when i need to.