The share of Wisconsin dentists serving Medicaid patients is lower than the national average. In 21 counties, fewer than four out of every 10 dentists filed Medicaid claims in 2021 — and in seven counties, not one dentist did, according to the UW-Madison La Follette School analysis. The numbers were similar in Dane County, where about six out of 10 dentists filed no Medicaid claims that year and less than one-third of Medicaid patients received dental care.