Meet the Faculty

Clint Williamson, M.D.

Program Director

Clint Williamson, M.D.
Body Imaging and general radiology, INTEGRIS Baptist Medical Center 
Chair of Radiology, INTEGRIS Cancer Institute of Oklahoma 
Dr. Williamson is a native of Oklahoma City. He did his undergraduate work at the University of Oklahoma before going to medical school at Emory University. He did his Radiology Residency here at INTEGRIS before going to Baylor University Medical Center for his Body Imaging Fellowship. He is a member of the American Roentgen Ray Society, the Association of University Radiologists, the Association of Program Directors in Radiology, the American College of Radiology, the Oklahoma State Radiological Society, and the Radiological Society of North America. He is a committee member for APDR and the ABR. His diagnostic interests include oncologic and transplant imaging. When he has free time he enjoys playing bass and wine tourism.


Georgianne Snowden, M.D.

Section Head

Georgianne Snowden, M.D.
Interventional Neuroradiology, Neuroradiology
Dr. Georgianne Snowden is a board-certified radiologist with subspecialty training in Neuroradiology and Interventional Neuroradiology and a member of Radiology Associates, Inc.  She is a graduate of the University of Oklahoma College of Medicine. Her residency in diagnostic radiology was completed at INTEGRIS Baptist Medical Center where she was named chief resident.  
Now a member of the INTEGRIS Health Board of Directors, she currently serves on the Safety & Quality and Audit & Compliance Committees.  Immediate past chairman of the Safety & Quality Committee.
Following completion of a fellowship in neuroradiology at the University of Cincinnati Hospital, Dr. Snowden returned to Oklahoma and has spent her career associated with INTEGRIS Baptist Medical Center.  She was a past president of the medical staff; served as radiology residency director since November 2013-June 2016; is past chairman of the Department of Radiology; has been a long-time member of the INTEGRIS Baptist Quality, Patient Safety and Credential Committees, and has served on numerous other committees.  She is a past member of the INTEGRIS Baptist Board of Directors and has been a member of the INTEGRIS Health Board since 2004 where she currently chairs the Quality Committee.
She is a senior member of the Society of Neuro Interventional Surgery; an ABR core exam writer, for the Neuroradiology section since 2010; a member of the American College of Radiology and has been an examiner for the American Board of Radiology since 1995.
Dr. Snowden was the first physician in Oklahoma to perform endovascular aneurysm coiling and has a busy endovascular neuroradiology practice. She is part of the INTEGRIS Stroke Team and performs complex endovascular procedures for appropriate stroke victims, often in the emergent setting.
Robert Gelczer, M.D.

Section Head

Robert Gelczer, M.D.
Chair of Radiology, INTEGRIS Health Edmond
President, Radiology Associates
Dr. Gelczer is the section head for Musculoskeletal Radiology. Dr. Gelczer did his residency at the Mayo Clinic in Rochester, MD and his fellowship at Mallinckrodt Institute of Radiology in St. Louis, MO. He is a member of the Society of Skeletal Radiology a member of the American College of Radiology. He is a committee member of the ACR Certifying Exam and Online Longitudinal Assessment Exam Committees in Musculoskeletal Radiology.


Ryan Trojan, MD
Dr. Trojan is a graduate of Oklahoma State University and the University of Oklahoma School of Medicine. Dr. Trojan completed his diagnostic radiology residency here at INTEGRIS followed by a fellowship in Interventional Radiology at Johns Hopkins in  Baltimore, MD. 
Dr. Trojan is the ESIR Program Director and serves as a mentor for all residents interested in pursuing Interventional Radiology as a career path.

Bob Jarman, MD
Dr. Jarman is proud of his family’s long-standing history in the state of Oklahoma. (His family has had the same football tickets at Owen Field for 90 years!) He is a graduate of the University of Oklahoma College of Medicine class of ’89 and has practiced in Oklahoma for over 20 years. Initially he pursued orthopedic surgery but found his calling in radiology at the University of Oklahoma HSC from 1991-1995. In his final year he was chief resident. While there, he was responsible for coordinating the radiology response team assisting the Office of the Medical Examiner following the Murrah Bombing in April 1995.
Dr. Jarman joined Radiology Associates in July of 2019 as a general and musculoskeletal radiologist. His love of teaching was part of what drew him to this practice. In his spare time he enjoys hiking, skiing, hunting, wine and mixology, and coaching middle school football. 

David Bohn, MD
Dr. Bohn is a graduate of the INTEGRIS Health diagnostic radiology residency. He did his fellowship in Musculoskeletal Radiology and Body MRI at Baylor University in Dallas. He is a member of the American Roentgen Ray Society.
Dr. Bohn was born and raised in the Sooner state before heading to Texas for fellowship. When not at work, he stays busy with his wife and their three boys. Hobbies include youth sports, fishing, movie night, college football, hiking, and being on the lake. 

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