Founded in Los Angeles
Six medical doctors co-founded RadNet, opening an outpatient imaging center in Los Angeles, California, United States and providing management, administrative and financial services to various medical clinics. Those physicians included Dr. Howard Berger, who leads RadNet today as Chairman, President and CEO.
Two sole owners
Dr. Berger and a partner purchased the other RadNet founders’ interests to become sole owners of the company.
Acquired by CCC Franchising, renamed Primedex
RadNet was acquired by CCC Franchising Corporation, which was subsequently renamed as Primedex Health Systems, Inc. RadNet operated as a subsidiary of Primedex.
Expansion across California
Under Primedex ownership, RadNet continued to expand in the state of California with acquisitions and the construction of new imaging centers.
Radiologix
Primedex acquired the company Radiologix, Inc., forging a presence beyond California for the first time and becoming the largest owner and operator of fixed-site, outpatient imaging centers in the United States. The transaction enabled Primedex to enter key states such as Maryland, New York and Florida.
Renamed RadNet, Inc.
Primedex Health Systems, Inc. was renamed RadNet, Inc.
Listed on Nasdaq as RDNT
The Nasdaq Stock Exchange began listing RadNet, using the ticker RDNT.
Nine acquisitions
RadNet’s strategic growth continued with the following acquisitions:
- Valley Imaging Centers in California (2007)
- Liberty Pacific Imaging Center in California (2007)
- Rolling Oaks Radiology in California (2008)
- Insight Health Corp. in California (2008)
- Papastavros’ Associates Medical Imaging in the state of Delaware (2008)
- Breastlink in California (2008)
- Delaware Neuroradiology in Delaware (2008)
- Medical Resources, Inc. in the states of New Jersey and New York (2009)
- Truxtun Medical Group in California (2010)
eRAD and a radiology IT division
RadNet acquired Image Medical Corporation – the parent of eRAD, Inc., based in the state of South Carolina – and established a business division dedicated to radiology information technology. eRAD has since developed leading-edge systems for managing patient data, coordinating imaging workflows and handling scheduling and billing, as well as for digitally capturing, storing, retrieving and displaying radiology images.
New Jersey Imaging Network
RadNet and the Barnabas Health system began operations for their new joint-venture partnership in New Jersey – named the New Jersey Imaging Network, LLC.
New York
RadNet increased its impact in New York with the acquisitions of Lenox Hill Radiology in 2013 and Diagnostic Imaging Group in 2015.
Cedars-Sinai
RadNet and the Cedars-Sinai health system formed two joint ventures in California.
Medical Arts Radiology and Kern Radiology
RadNet’s outpatient-imaging leadership grew further with the 2018 acquisition of Medical Arts Radiology in New York and the 2019 acquisition of Kern Radiology in California.
DeepHealth
RadNet acquired DeepHealth, an artificial intelligence (AI) and machine learning company based in the state of Massachusetts. DeepHealth initially focused on developing solutions for improving mammography.
Arizona
RadNet expanded into the state of Arizona with the acquisition of AZ Tech MRI & Radiology and the formation of Arizona Diagnostic Radiology Group, a joint venture with the Dignity Health/CommonSpirit system.
Aidence and Quantib
RadNet bolstered its international presence with the purchase of two Netherlands-based technology companies: Aidence Holding B.V., which created AI-oriented products for pulmonary nodule management and lung cancer screening, and Quantib B.V., which leveraged AI to develop imaging solutions for prostate cancer and neurodegeneration.
United Kingdom
RadNet entered the United Kingdom market by acquiring a majority interest in the UK-based Heart & Lung Health (HLH) Group. Cardiothoracic radiologists in the HLH network use AI-powered innovations, including those from RadNet, to provide diagnostic services for the UK’s National Health Service and other health providers. The effectiveness of HLH’s work was integral to the UK establishing a national screening program for lung cancer.
MammogramNow
RadNet launched MammogramNow, a program that increases access by providing mammography services in select Walmart stores. RadNet’s other public outreach efforts include a mobile mammography program, preventive-care education at community events, health-awareness campaigns across many communications channels and charitable support for organizations devoted to enhancing well-being.
One DeepHealth brand
RadNet consolidated DeepHealth, eRAD, Aidence and Quantib under the single brand of DeepHealth to provide a robust portfolio of AI-powered health informatics unified by the cloud-native DeepHealth OS operating system.
Texas
RadNet expanded into the state of Texas with two acquisitions:
- Houston Medical Imaging, LLC
- American Health Imaging
Four acquisitions for DeepHealth
RadNet continued the growth of its wholly owned subsidiary DeepHealth with the following acquisitions:
- Kheiron Medical Technologies Limited in the United Kingdom (2024)
- See-Mode Technologies PTE LTD, based in Singapore and operating in Australia (2025)
- iCAD, Inc. in the state of New Hampshire (2025)
- CIMAR UK in the United Kingdom (2025)
Alpha RT
RadNet acquired the assets of Florida-based Alpha RT, a pioneer in remote MRI scanning solutions and services. The transaction combined Alpha RT’s staffing services and training programs with DeepHealth’s TechLive remote scanning technology, creating a comprehensive remote-imaging portfolio.
Virginia, Florida and Indiana
RadNet further increased its network of imaging centers by acquiring:
- Woodburn Nuclear Medicine and Metro Region PET Center (2025), marking RadNet’s expansion into the state of Virginia
- Radiology Regional in Florida (2026)
- Northwest Radiology (2026), marking RadNet’s entry into the state of Indiana
Idaho
RadNet entered the state of Idaho through a joint venture with Trinity Health’s Saint Alphonsus Health System. Today, RadNet operates 27 joint ventures with trusted health systems in the United States.
Gleamer
RadNet subsidiary DeepHealth became the world’s largest provider of radiology clinical AI solutions after the acquisition of French-based Gleamer SAS. Today, DeepHealth serves thousands of customers – helping to boost clinical accuracy, streamline workflows, address staffing shortages and support large-scale screening programs that enable earlier detection and treatment of disease.
With more than 12,000 team members across four continents, RadNet is improving healthcare through the pivotal gateway of imaging – specifically through its combined leadership in outpatient imaging and digital health.