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Why join the Physician team at Radiology Imaging Associates?

Our physician team includes over 100 fellowship trained, sub-specialized radiologists, many are Fellows in the American College of Radiology (“ACR”)

Welcome to RIA! By joining our group, you will be a member of one of the largest and most comprehensive and innovative radiology practices in the United States, located in one of the most sought-after locales in the United States!

RIA’s singular focus on its mission “to improve the health of the patients in the communities we serve” has helped RIA grow from its roots as a three-physician provider of radiology services at Denver’s Swedish Medical Center in the early 1960s to being a leading regional provider of professional services for diagnostic imaging and image-guided intervention. Today, RIA radiologists read over 1.5 million imaging studies annually for patients in five states.

On a daily basis, we have fellowship trained radiologists providing high quality sub-specialty care for patients in Colorado, Nebraska, Oklahoma, Kansas and Hawaii via either on-site and/or teleradiology coverage. In Colorado alone, we provide 24/7/365 services to four large health systems (SCL, HCA-HealthONE, Banner Health and Centura Health), including one Level 1 and 5 Level 2 trauma centers, and many more metropolitan and rural healthcare facilities and medical care providers throughout the state.

William Grande, MD smiles warmly into the camera

“RIA is committed to recruiting radiologists who provide outstanding service and care to our patients, referring providers, and partner hospitals.”

– William Grande, MD Physician Recruitment Chair


For decades, RIA has prided itself on being on the cutting edge of imaging innovation. We led the effort to acquire the first CT scanner and first outpatient MRI in the state of Colorado and were the first in our home state to provide in-house radiology coverage 24 hours per day, 365 days per year. RIA radiologists were integral to development and testing of novel ‘Rodeo’ breast MR pulse sequences, minimally invasive breast biopsy procedures, and breast US and CT colonography techniques. More recently, our radiologists have been national leaders in the initial testing of 3D mammography leading investigators in numerous interventional stroke research studies which have revolutionized the treatment of acute ischemic stroke, invited to speak at society and industry conferences on a worldwide basis on topics such as cardiac CT, breast tomosynthesis, interventional oncology, minimally invasive reconstruction techniques for complex venous disease, and clinical quality measures in imaging, and written textbooks and taught classes that define the practice of radiology today. We continue to search for better methods, better processes and better outcomes as we pursue our mission of improving the health of the patients to whom we provide care.

Diagnostic Sub-specialty Expertise

Our diagnostic radiology team includes over 80 fellowship trained, sub-specialized radiologists who cover our practice 24 hours per day, 365 days per year. This means that the medical staffs and patients we serve receive expert interpretations from radiologists they trust within minutes of the completion of an imaging study.

World Renowned Interventional and Neurointerventional Programs

Our interventional radiologists are recognized as experts throughout the world. RIA offers deep experience in basic interventional services and we are considered experts in the treatment of complex hepatobiliary disease, interventional oncology, complex venous reconstruction and neurointerventional radiology. Our 23 fellowship trained interventional and neurointerventional radiologists provide service coverage 24 hours per day, 365 days per year.

To illustrate our interventional radiology expertise, interventional neuroradiologist Dr. Donald Frei was a primary author of the seminal paper on the treatment of acute stroke (New England Journal of Medicine – February 11, 2015) that proved the efficacy of rapid intervention in the setting of acute ischemic stroke. Dr. Frei was also featured on the CBS network for advancements in the treatment of aneurysms.

RIA Interventional Clinics

RIA currently owns and operates three interventional clinics where interventional and neurointerventional patients are seen by radiologists and mid-level providers before and after procedures. Patients come to the clinics from a variety of referral sources where they are evaluated and then brought to the hospitals for high-end treatments. While these clinics require significant investment from RIA, we believe this commitment allows us to provide best-in-class care to our patients.

Clinical Sciences

RIA and its affiliate company Medical Imaging of Colorado employ a non-physician Clinical Sciences team consisting of six technical specialists with over 75 years of combined experience in the areas of mammography, ultrasound, CT and MRI. Our team maintains registration and advanced certification with national registries such as the ARRT and ARDMS. Clinical Sciences team members have lectured on a national level, been involved with formalized training programs in their respective areas of expertise, and served on a national level as chairs and members of clinical and medical advisory boards and testing standards committees.

The Clinical Sciences team is committed to improving the skill of the technologists employed by our partner hospitals, ensuring adherence to ACR practice guidelines and ensuring continuous quality improvement in imaging. They work to ensure that the patient and referring clinicians’ experience is positive and will meet with specific referring clinicians as needed to address particular imaging issues or needs. In addition, our team has successfully implemented and manages an ongoing CT dose management program that has reduced dose levels at our partner facilities to ‘as low as reasonably achievable’. The dose reductions we’ve achieved were so substantial that RIA’s CT clinical specialist was invited to meet with Siemens engineers in Germany to educate them about our program. Furthermore, the Clinical Sciences team assists the radiologists in protocol development, trains technologists on the appropriates use of imaging protocols and assists in driving the implementation of the most up-to-date clinical protocols in both inpatient and outpatient imaging departments and centers.

The Clinical Sciences team also supports all of our partners in the maintenance of certifications and accreditation process. This includes, but is not limited to, all American College of Radiology modality-specific accreditations and MQSA certifications.

Quality Program Overview

At RIA, clinical quality has always been the cornerstone of our success. We believe our quality program starts with hiring radiologists trained at premier programs across the country, and then continues by providing them with unparalleled clinical and technical support which allows them to be great clinicians. However, our commitment to quality only begins with radiologist recruiting. We utilize our clinical data systems to manage metrics such as turnaround time and called reports to improve our service in real time. Monitoring and managing quality on a regular basis allows the continuous clinical quality improvement of our services in all our partner facilities.

Our Board of Directors


Our Business Leadership Team