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Healthcare Insights

Largest IDNs in Wisconsin

Wisconsin is the 20th largest state in the U.S. by population. Its nearly six million residents rely on hospitals and healthcare facilities to receive care services, many of which are part of a broader integrated delivery network (IDN), or health system.

Your healthcare commercialization strategy can significantly boost when you have a greater understanding of the IDNs in Wisconsin. Specifically, two key metrics include an IDN’s size (based on the number of affiliated hospitals) and financial strength (based on net patient revenue). As for the value this data provides, targeting large health systems allows for greater distribution of a product or service, and IDNs with high NPRs may be looking to upgrade or expand their services.

Using Definitive Healthcare’s HospitalView product, we created lists of Wisconsin's largest and highest-earning IDNs based on data from the Medicare Cost Report.

Wisconsin IDNs with the most hospitals

Rank WI IDN name City Definitive ID # of affiliated hospitals Net patient revenue # of staffed beds # of discharges Explore dataset 
Aurora Health Care Milwaukee 4696 19 $4,342,437,516  2,622 90,818 Explore
Froedtert ThedaCare Health Inc Milwaukee 1069596 18 $4,390,840,655  1,670 75,949 Explore
Ascension Wisconsin (FKA Ascension Wheaton Franciscan Healthcare) Glendale 4745 18 $2,211,518,410  2,075 56,350 Explore
Aspirus Health (FKA Community Health Care Inc) Wausau 274276 17 $1,116,510,138  699 25,875 Explore
Marshfield Clinic Health System Marshfield 842985 13 $1,779,079,403  582 24,733 Explore
Emplify Health (AKA Bellin Health and Gundersen Health System) La Crosse 1057636 10 $2,391,542,071  648 26,398 Explore
Froedtert & the Medical College of Wisconsin Milwaukee 274189 $3,172,999,817  1,061 50,550 Explore
ThedaCare Neenah 7030 $845,628,712  436 20,226 Explore
Gundersen Health System La Crosse 4755 $1,587,575,384  399 16,337 Explore
10 SSM Health in Wisconsin Madison 70253 $1,139,460,842  622 30,694 Explore

Fig. 1 Data is from the Definitive Healthcare HospitalView product. Data is aggregated from affiliated facilities based on data from the Medicare Cost Report and is displayed according to the most recent 12-month interval tracked in our database. Data accessed June 2024.

What Wisconsin IDN has the most affiliated hospitals?

The Wisconsin health system with the most hospitals is Aurora Health Care, with 19 hospitals. It is a part of the parent IDN Advocate Health, which is one of the busiest IDNs in the United States based on its high number of patient discharges. Aurora Health Care serves communities throughout eastern Wisconsin and northern Illinois.

Froedtert ThedaCare Health Inc. and Ascension Wisconsin are tied for the second-place spot with 18 hospitals each.

Froedtert ThedaCare Health Inc. is partnered with the Medical College of Wisconsin and offers the only academic medical center in eastern Wisconsin and one of only two academic medical centers in all of Wisconsin.

Ascension Wisconsin is a part of the Ascension Health IDN, which is one of the largest IDNs in the US. It is also one of the nation’s leading non-profit and Catholic health systems.

Wisconsin IDNs by net patient revenue

Rank WI IDN name City Definitive ID # of affiliated hospitals Net patient revenue # of staffed beds # of discharges Explore dataset 
Froedtert ThedaCare Health Inc Milwaukee 1069596 18 $4,390,840,655  1,670 75,949 Explore
Aurora Health Care Milwaukee 4696 19 $4,342,437,516  2,622 90,818 Explore
University of Wisconsin Health (AKA UW Health) Madison 550200 $3,463,285,353  1,185 45,848 Explore
Froedtert & the Medical College of Wisconsin Milwaukee 274189 $3,172,999,817  1,061 50,550 Explore
Emplify Health (AKA Bellin Health and Gundersen Health System) La Crosse 1057636 10 $2,391,542,071  648 26,398 Explore
Ascension Wisconsin (FKA Ascension Wheaton Franciscan Healthcare) Glendale 4745 18 $2,211,518,410  2,075 56,350 Explore
Marshfield Clinic Health System Marshfield 842985 13 $1,779,079,403  582 24,733 Explore
Gundersen Health System La Crosse 4755 $1,587,575,384  399 16,337 Explore
SSM Health in Wisconsin Madison 70253 $1,139,460,842  622 30,694 Explore
10 Aspirus Health (FKA Community Health Care Inc) Wausau 274276 17 $1,116,510,138  699 25,875 Explore

Fig. 2 Data is from the Definitive Healthcare HospitalView product. Data is aggregated from affiliated facilities based on data from the Medicare Cost Report and is displayed according to the most recent 12-month interval tracked in our database. Data accessed June 2024.

What Wisconsin IDN has the highest net patient revenue (NPR)?

The IDN in Wisconsin with the highest net patient revenue is Froedtert ThedaCare Health Inc., with an NPR of $4.39 billion.

The IDN with the second highest NPR in Wisconsin is Aurora Health Care, with an NPR of $4.34 billion, which places it exceptionally close to grabbing the top spot for Wisconsin IDNs. Its parent IDN, Advocate Health, is also one of the top 10 highest-earning IDNs in the United States.

University of Wisconsin Health (UW Health) has the next highest NPR in Wisconsin, with an NPR of $3.4 billion. A highlight of their service is a Drive Thru Clinic, which offers respiratory illness testing and vaccinations without patients even needing to leave their car.

Targeting IDNs in Wisconsin

In today’s healthcare market, IDNs take on more responsibility and oversee all aspects of patient care, making them a valuable target for suppliers. Furthermore, marketing to IDNs allows you to take advantage of their network of care facilities, especially if you market to IDNs with more affiliated hospitals and clinics.

However, selling into the healthcare space is complicated, and even more so when you’re looking to target IDNs. Each IDN follows a unique model, so a cookie-cutter marketing approach will not be as successful as tailoring your marketing to match the IDN; understanding Wisconsin’s broader health system landscape can help you in this endeavor.

Beyond each IDN’s number of affiliated hospitals and NPR, other key metrics that can prove useful for your marketing strategy include prescription patterns, integration levels, and referrals.

Discover more

Affiliated hospitals and NPR are two metrics available on the Definitive Healthcare platform. To discover the data sources of our healthcare insights and explore them for yourself, start a free trial now.