Radisphere Radiology

About Radisphere Radiology

Radisphere Radiology, initially founded as Franklin & Seidelmann Subspecialty Radiology in 2001, established itself as a provider of outsourced radiology services. The company was co-founded by Dr. Frank Seidelmann and Dr. Peter Franklin, both radiologists who envisioned an alternative clinical delivery model for community hospitals. Dr. Seidelmann, a neuroradiologist, saw the increasing need for subspecialist expertise that many local radiology groups struggled to provide. This led to the creation of a national network of subspecialty radiologists. The business was later rebranded as Radisphere National Radiology Group to reflect its nationwide scope.

The company's business model focused on providing a hybrid of on-site and off-site radiology services to community hospitals, typically those with 50 to 400 beds. This involved placing general radiologists on-site for routine interpretations and interventional procedures, while leveraging a remote network of subspecialists for more complex cases and after-hours support. Revenue was generated by contracting directly with hospitals to manage their entire radiology service line, including professional interpretation, billing, and quality assurance. This full-service approach differentiated Radisphere from traditional teleradiology firms that often only provided preliminary reads.

Radisphere developed a proprietary technology platform, known as radii™, to manage the distribution of images and reports across its network. The platform also included performance measurement and resource allocation tools called RadVision and RadPerform. This technology was central to the company's ability to offer services like critical-findings notifications and a robust peer-review process, which were designed to improve report quality and turnaround times. Over its history, the company secured significant venture capital funding, raising a total of $55.1 million over several rounds from investors including Oak Investment Partners and Maverick Capital to enhance its technology and infrastructure. In January 2015, Radisphere was acquired by AmSurg Corp and integrated into its Sheridan physician services division. At the time of the acquisition, Radisphere employed over 100 radiologists and operated in 25 states, reading more than 3 million studies annually.