The 10 largest medical groups in Wisconsin by physicians
Froedtert & the Medical College of Wisconsin Community Physicians is the largest medical group in Wisconsin, with 2,789 physicians, followed by Aurora Medical Group in Milwaukee (2,760) and UW Health in Middleton (2,157).
- Froedtert & the Medical College of Wisconsin Community Physicians2,789physicians4,515HCPs
- Aurora Medical Group2,760physicians5,317HCPs
- UW Health2,157physicians3,490HCPs
- Marshfield Clinic Health System1,740physicians2,949HCPs
- Froedtert & the Medical College of Wisconsin Community Physicians1,560physicians2,565HCPs
- Marshfield Clinic Health System (MCHS), Marshfield Medical Center1,505physicians2,699HCPs
- Mercyhealth1,177physicians1,691HCPs
- Gundersen Lutheran Medical Center973physicians1,777HCPs
- Mayo Clinic Health System in La Crosse971physicians1,329HCPs
- Mayo Clinic Health System in Eau Claire962physicians1,631HCPs
The 10 largest of 618 Wisconsin medical groups that report physicians. Ranks compare size, not quality of care.
Every medical group in WisconsinThe median Wisconsin medical group has 5 physicians
618 Wisconsin medical groups report physicians. The median medical group has 5 physicians, so Froedtert & the Medical College of Wisconsin Community Physicians is about 558 times that size.
- the size of the median Wisconsin medical group, which has 5 physicians
- 558×
- of the 618 Wisconsin medical groups that report physicians
- 1.6%
How we ranked the largest Wisconsin medical groups
- Measure
- Physicians linked to each group in CMS enrollment and the Dmand AI database.
- What counts as a group
- One Medicare PAC ID. A group that bills under several names counts once.
- Field
- 618 Wisconsin medical groups in the Dmand AI database report physicians.
- Ties
- Medical groups with the same number share a rank.
- HCPs
- Healthcare professionals with a current link to the group in the Dmand AI database.
- What a rank means
- Size only. A rank compares physicians; it says nothing about quality of care.
- Refresh
- Monthly. Updated Oct 28, 2026.
FAQ
Questions about the largest Wisconsin medical groups
Answers from the same data, updated monthly.
What is the largest medical group in Wisconsin?
Froedtert & the Medical College of Wisconsin Community Physicians in Milwaukee, with 2,789 physicians. Aurora Medical Group is second with 2,760.
What are the 10 largest medical groups in Wisconsin?
By physicians: Froedtert & the Medical College of Wisconsin Community Physicians (2,789), Aurora Medical Group (2,760), UW Health (2,157), Marshfield Clinic Health System (1,740), Froedtert & the Medical College of Wisconsin Community Physicians (1,560), Marshfield Clinic Health System (MCHS), Marshfield Medical Center (1,505), Mercyhealth (1,177), Gundersen Lutheran Medical Center (973), Mayo Clinic Health System in La Crosse (971), Mayo Clinic Health System in Eau Claire (962).
How many physicians does a typical Wisconsin medical group have?
The median Wisconsin medical group that reports physicians has 5 physicians, out of 618 that report them.
How often is this list updated?
Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.
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