Kohlberg & Company, a private equity firm, completed an investment in United United Digestive, a gastroenterology platform from Frazier Healthcare, a health care company. Financial terms were not disclosed. “During our productive and value-creating partnership with Frazier, United Digestive was able to rapidly expand its footprint and services, while maintaining the highest levels of patient care. We look forward to building off of this strong platform in partnering with Kohlberg and leveraging the firm’s longstanding experience and proven track record in investing in market leading healthcare services companies to accelerate United Digestive’s next phase of growth,” Mark Gilreath, United Digestive Chief Executive Officer.