OneOncology
Founded 2018 Β· 742 employees on LinkedIn Β· 2 known investors
OneOncology invests in and partners with community oncology practices to deliver cancer care, helping them grow, diversify across specialties, and apply data and technology to improve performance. It operates a network of oncology and urology practices across the United States.
Also known as One Oncology
Founders & leadership
Board
Investors Β· 2
Also in the syndicate Β· 1
Company profile
researched Aug 2026OneOncology is a Nashville, Tennessee-based platform company that partners with independent community oncology practices, enabling them to remain independent while improving patient access to cancer care in local communities at a lower cost than the hospital setting. The company invests in and collaborates with partner practices, helping them grow within their local markets, diversify across multiple specialties, apply data insights, and use technology to strengthen operational, financial and clinical performance. Services provided across the platform include group purchasing, operational optimization, practice growth support and clinical innovation.
The platform is organized around three business lines: OneOncology, the core community oncology partnership; OneUrology, which brings urologists and urology practices across the platform together; and OneR, a community-based site management research network that connects clinical trial sponsors with practices and centralized research services. OneOncology also operates OneAnalytics, an analytics platform drawing on a data warehouse across multiple systems to measure financial, operational and clinical performance, and OneCouncil, a national physician executive board on which each partner practice elects a representative, with committees covering pharmacy and therapeutics, clinical pathways, research, and quality and value.
Partner practices span numerous US states and include Tennessee Oncology, New York Cancer & Blood Specialists, West Cancer Center, Astera Cancer Care, Clearview Cancer Institute, Mary Bird Perkins Cancer Center, Chesapeake Urology, Arizona Urology Specialists, Colorado Urology, Tennessee Urology Associates, Cancer & Hematology Centers of West Michigan, Piedmont Cancer Institute, Coastal Cancer Center and others.
Founding story
The company was founded by community oncologists, for community oncologists, with the stated mission of improving the lives of everyone living with cancer by enabling independent practices to remain independent and to expand patient access to care in their communities.
Business model
OneOncology invests in and partners with independent community oncology and urology practices, providing management, group purchasing, operational optimization, growth support, data analytics and clinical innovation services in exchange for participation in the platform, while practices retain independence.
OneOncology derives value from equity investments in and management services for partner oncology and urology practices, including group purchasing and operational services.
Traction
Company materials report more than 2,700 total providers, over 1.7 million patients seen and more than 600 practice locations across the partner network; 167,000 patients were treated by OneOncology practices in 2019. At the close of the United Urology Group acquisition in October 2024, the platform comprised 1,300 cancer care providers caring for approximately 787,000 patients at more than 420 sites of care.
Latest developments
OneOncology closed its acquisition of United Urology Group in October 2024, adding more than 250 urology providers and 1,300 employees to the platform. In August 2026 the company announced a partnership with OpenEvidence and named new disease group chairs, expanding physician sub-specialization into gynecologic oncology. Earlier initiatives include a March 2022 collaboration with Employer Direct Healthcare on value-based precision cancer care access and the launch of the OneR research network subsidiary in 2020.
βΈFull profile β market position, technology, go-to-market, geography, history
Market position
OneOncology is a national physician-led platform for independent oncology practices, described at the time of its 2024 United Urology Group acquisition as supporting 1,300 cancer care providers serving approximately 787,000 patients at more than 420 sites of care; company materials cite more than 2,700 total providers, 1.7 million patients seen and over 600 practice locations.
The company positions itself as physician-led and physician-governed, founded by community physicians for community physicians, allowing practices to retain independence while gaining scale in purchasing, capital access, data analytics, research infrastructure and shared best practices across oncology and urology.
Technology
OneOncology operates OneAnalytics, an analytics platform that pulls data from multiple systems into a data warehouse and provides interfaces for physicians and practice leaders to measure financial, operational and clinical performance. The company was formed in partnership with EHR technology company Flatiron Health and has pursued precision-care tool development with a biotech partner.
Go-to-market
OneOncology recruits large independent oncology and urology practices into its platform through physician-led partnership and equity investment, and expands through acquisitions such as United Urology Group; physician involvement is institutionalized through OneCouncil, on which each partner practice elects a representative.
Independent community oncology and urology practices and their physicians, and, through those practices, cancer patients treated in community settings.
Geography
United States, headquartered in Nashville, Tennessee, with partner practice locations across states including Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Louisiana, Maryland, Michigan, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, Tennessee and Texas.
History
OneOncology was formed in 2018 by community physicians in partnership with EHR technology company Flatiron Health, tying together three founding practices β Tennessee Oncology, New York Cancer & Blood Specialists and West Cancer Center β representing more than 200 oncology providers. In 2018 it received $200 million in backing from General Atlantic, which took a majority stake, and built out its leadership team, naming Erich Mounce (CEO of West Cancer Center) as first chief operating officer, Phil Watts as general counsel, Robin Shah from Flatiron Health, and David Chernow as board chairman, with former Senator Bill Frist joining the board in December 2018. Tracy Bahl served as early CEO; Jeff Patton, MD was named chief executive officer in May 2020. The company launched a research network subsidiary in October 2020 and closed the acquisition of United Urology Group in October 2024. It is backed by TPG and Cencora.
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Timeline Β· 10
launches, deals, and filingsOneOncology closed its acquisition of United Urology Group, a urology management services organization supporting more than 250 providers with more than 1,300 employees, whose member groups include Arizona Urology Specialists, Chesapeake Urology, Colorado Urology and Tennessee Urology.
OneOncology added former U.S. Senator Bill Frist to its board and named Erich Mounce, CEO of West Cancer Center, as its first chief operating officer. Phil Watts joined as general counsel and Robin Shah joined from Flatiron Health; David Chernow served as board chairman.
Private equity firm General Atlantic took a majority stake in OneOncology; the group received $200 million in backing from General Atlantic in 2018.
$200M source β
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
βΈResearch sources Β· 8
primary sources listed
- OneOncologyoneoncology.com Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does OneOncology do?
- OneOncology is a physician-led national platform that partners with independent community oncology and urology practices.
- Who are OneOncology's investors?
- OneOncology's investors include Frist Cressey Ventures.