InterWell Health Partners with Over 1,000 Nephrologists in $46 Million Series B Equity Round News provided by Share this article Share this article WALTHAM, Mass., April 22, 2021 /PRNewswire/ -- InterWell Health, the leading physician organization driving innovation in the renal industry, announces the closing of a Series B round of equity funding of over $46 million. This private offering brings together more than 1,000 nephrologist investors representing 55 nephrology practices in 31 states into InterWell Health. InterWell Health was founded in December 2019 with initial funding of $20 million from 16 nephrology practices and Fresenius Medical Care North America (FMCNA), the world's largest, vertically integrated kidney care company. "This offering expands our investor group of premier, visionary nephrology practices across the country," said Kim Sonnen, President of InterWell Health. "We are poised to deliver extraordinary value to patients, providers, and payors under value based arrangements that support individuals living with chronic kidney disease. Our hallmark is the physician investment, leadership, and engagement that drives the InterWell Health business model."