ION - Key Persons


Jodi Horsley - COO

Job Titles:
  • Chief Operating Officer
With a comprehensive understanding of patient care systems, clinical operations, and physician relationships, Jodi leads all business operations for over 50 facilities across the United States. She develops strategic initiatives to drive revenue growth while always putting patients first. Prior to joining Integrated Oncology Network, she served at Alliance Oncology as SVP Operations and held various senior leadership roles for 10 years where she focused on joint ventures with hospitals and physicians, and operated wholly owned radiation, medical, and surgical oncology programs. Prior to this, Jodi spent four years as Senior Regional Director of Ops with U.S. Radiosurgery developing and operating radiosurgery programs of excellence with physicians and hospitals. In addition, Jodi has managed multiple physician practices in neurosurgery and orthopedics. Throughout her career, she has designed and implemented programs for operational management of multi-state, multi-unit business, and also has extensive experience in healthcare business marketing and sales, direct-to-consumer healthcare marketing, and connecting legal and business operations. She has her BS, Masters in Public Administration, and Juris Doctor. Jodi is a Fellow of the American College of Medical Practice Executives.

Josh Johnson - CEO

Job Titles:
  • Chief Executive Officer
  • Chief Executive Officer of Integrated Oncology Network
Josh Johnson is the Chief Executive Officer of Integrated Oncology Network, LLC (ION). Previously, Mr. Johnson was the Senior Vice President, Chief Operating Officer and Chief Development Officer for e+CancerCare which was acquired by ION in June of 2019. He was responsible for overall operations, analyzing and developing plans to drive growth, nurturing existing and new business opportunities as well as partner relationships. In addition, he led the company's corporate development function, with responsibility for acquisitions, mergers and joint ventures while overseeing sales and marketing. He assisted with the development of programs supporting organizational strategy and objectives, both short and long range. Previously, Josh was the Chief Operating Officer for Accurate Healthcare and worked for AmSurg, a leading, outpatient surgery company, where his focus entailed financial management and operational assistance. Mr. Johnson brings over fifteen (15) years of healthcare experience with a keen focus on oncology service line leadership.

Robbie Rhymer

Job Titles:
  • EVP Human Resources & Chief Clinical Operations Officer
  • Executive Vice President of Human Resources & Chief Clinical Operations Officer of Integrated Oncology Network
Robbie Rhymer is the Executive Vice President of Human Resources & Chief Clinical Operations Officer of Integrated Oncology Network, LLC. Prior to ION, Mr. Rhymer was the Chief Clinical Operations Officer and Chief Compliance Officer for e+ CancerCare, responsible for overall clinical operations, human resources, compliance and physician relationships. e+ CancerCare was acquired by ION in June, 2019. He assisted in the start-up of e+ in 2003, at which time the company started as a PET/CT company & then expanded to a full, outpatient, oncology service line in 2008. Previously, Robbie was a Regional Vice President at Symbion, a leading, for-profit ambulatory surgery center company, where he managed the Southeastern regional market and was keenly instrumental in the incremental growth of the division, service, quality and various financial aspects. He possesses a strong leadership and clinical background (critical care, surgery and oncology) having held various positions at academic and for-profit companies, including both Tenet Healthcare and HCA. Mr. Rhymer has a graduate degree from Duke University and has more than thirty (30) years' experience in healthcare.

Ryan E. White - Chief Compliance Officer, EVP

Job Titles:
  • Chief Compliance Officer
  • EVP
  • Executive Vice President, Corporate Compliance Officer
Ryan White is the Executive Vice President, Corporate Compliance Officer of ION. Prior to ION, Mr. White was the Compliance Officer for DaVita Health Plan of California. Mr. White has extensive audit, compliance, investigations, privacy and regulatory experience and is skilled in the implementation of global compliance programs, risk assessments, policies, internal control procedures, and the comprehensive analysis of exposure issues related to internal and government audits and investigations. Previously, Mr. White served as the Senior Director of DaVita HealthCare Partners National compliance program. Mr. White has also worked in senior compliance and legal roles at Allergan Inc. and McKesson Corp. Mr. White has a Bachelor's Degree from Vassar College in Biopsychology.

Stuart M. Bitting - CFO, EVP

Job Titles:
  • Chief Financial Officer
  • EVP
Stuart leads the company's finance, accounting, revenue cycle, planning and IT functions. Previously, he was Executive Vice President and CFO of e+CancerCare which was acquired by ION in June 2019. Prior to e+CancerCare, he was the CFO of HarperCollins Christian Publishing, which comprises Thomas Nelson Inc. and Zondervan. Stuart has over 30 years of broad financial, strategic, operational, and merger and acquisition experience across multiple business segments with companies including Frito-Lay, Inc. (a division of PepsiCo), Centex Homes (now part of Pulte Group, Inc.), David Weekley Homes, CompX International Inc., NCH Corporation and Atlas Powder Company. Stuart earned a B.A. in Accounting from St. Ambrose University and a Finance Certificate from Southern Methodist University and is a licensed CPA and CGMA.