One GI®
John Zettlemoyer currently serves as Market Vice President at One GI® since January 2024. Prior to this role, John held various positions at Sentara Healthcare from May 2016, including Practice Manager and Director of Operations. John also has a distinguished service record with the United States Navy Facility from June 1996 to June 2016, where responsibilities included serving as a Senior Chief Petty Officer and a Naval Hospital Corpsman, with a focus on emergency medicine and healthcare infrastructure development in Kunar Province, Afghanistan, in 2009. John holds a Master of Business Administration from Saint Leo University (2013-2016) and a degree in Health Care Administration from Southern Illinois University, Carbondale (2006-2010).
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One GI®
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One GI is a physician-centric gastroenterology management services organization (MSO) that partners with gastroenterologists to help them manage, optimize, and grow their independent gastroenterology practices. Founded and advised by a medical board of gastroenterologists, One GI is devoted to preserving private practice through consolidation. One GI’s innovative executive leadership team holds deep expertise in digital health, healthcare provider oversight, and multi-specialty practice management to drive strategic growth initiatives, clinical excellence, and optimal patient care. Since its inception in 2020, One GI continues to rapidly grow within our expanding footprint, develop local ancillary services, and strengthen relationships with payors and healthcare systems. We offer a full suite of services for our partner practices, including finance and accounting, revenue enhancement, legal and compliance, practice benchmarking, quality assurance, development and growth, HR, information technology, and marketing/advertising/recruiting. One GI’s state-of-the-art ancillary services include in-house pathology, infusion, pharmacy, and research programs throughout our network. One GI is headquartered in Nashville, Tennessee, and powers gastroenterology practices located throughout Tennessee, Mississippi, Ohio, Kentucky, and Indiana. One GI’s entities include: Gastroenterology Health Partners, Digestive Health Associates, Gastro One, Gastroenterology Associates and Endoscopy Center of North Mississippi, Digestive Health Specialists, Dayton Gastroenterology, Digestive Disease Consultants, North Coast Endoscopy, Great Lakes Gastroenterology, Associates in Gastroenterology, and Franklin Gastroenterology.