BOARD-CERTIFIED AND FELLOWSHIP-TRAINED
OUR RADIOLOGISTS
JEFFREY L. ROSENGARTEN, MD
Co-Founder, President & Senior Orthopedic Radiologist
Dr. Rosengarten was fellowship trained in MSK/Orthopedic Radiology and his passion in this practice segment is evident. During his first 15 years in academic practice, he won several awards for resident education, published multiple papers, and was the primary investigator or sub-investigator for over 50 research projects. He mentored over 50 residents, fellows and medical students. For 35 years he has had numerous academic appointments including at Northwestern University, The University of Illinois, and The Chicago Medical School at Rosalind Franklin University.
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Dr. Rosengarten formed three independent radiology practices, built over 20 imaging centers, and co-founded or helped build several medical companies over the last 2 decades. As an entrepreneur, he participated in multiple projects on behalf of academic and community hospitals as well as his own and other radiology groups.
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Dr. Rosengarten feels strongly about 2 practices that have helped ensure success throughout his business career: 1) Empowering coworkers at all levels so they feel as though they have control over their work lives; 2) Building a culture that encourages enjoyment at work.
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All three of Dr. Rosengarten’s children have followed his footsteps into medicine and radiology, in particular based on the passion that they observed their father maintain through both good times and challenging situations. Dr. Rosengarten feels that support he has received from the people that he loves—family and friends—is most responsible for his personal success.
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He loves world travel, meeting and learning from all people, experiencing new and varied cultures, and feels that lifelong learning is vital.
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“I never thought that I would be saying that I have been practicing radiology for 35 years. I am still passionate about the same things 35 years later: patient centered care, with the highest quality, best service, and the lowest possible cost. That’s it! That equals the best value for the patient!”
ZACHREY M. ROSENGARTEN, MD
Co-Founder, Vice President & Senior Orthopedic Radiologist
Dr. Zach Rosengarten is a board-certified musculoskeletal radiologist, having completed his Orthopedic/ MSK fellowship training at UC- Irvine/ Long Beach VA Hospital in 2022 and his Diagnostic Radiology residency training at Lenox Hill Hospital in New York City in 2021. Zach's MD was granted from the Chicago Medical School, after undergraduate study at the University of Wisconsin.
Zach has spent the last 10 years building teams and friendships to learn the intricacies of the diagnostic radiology profession as well as how to build medical imaging centers from the ground up. Zach is excited to help drive the progression of Diaspora Radiology and Smart Scan Medical Imaging with the goal of ensuring the highest quality imaging at a reasonable cost, at a time when medical costs are getting out of hand.
Zach has dabbled in investing in early start-up companies in areas such as healthcare, tech, and software. To relax, Zach likes to yell at his favorite sports teams through the TV, mainly the Packers and Badgers, or go to the park with his young son.
FRANK KALMAR, MD
Director or Body Imaging and Oncologic Imaging
Dr. Kalmar has over 25 years’ experience in all aspects of radiology, with a strong interest and subspecialty fellowship training in body imaging and musculoskeletal imaging. Dr. Kalmar approaches every imaging case as if it were his mother’s and treats every referring physician as if they were a sibling, providing very thorough, thoughtful, and well-researched interpretations that aid in narrowing the differential of sometimes tricky diagnoses.
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Numerous daily phone consultations with referring physicians have made Dr. Kalmar’s career a more palpable and personally satisfying experience which is not often the case for a radiologist who sits in front of a computer monitor all day. Whether he is interpreting the cases of thousands of NFL, NBA, MLB, PGA, Big Ten and Olympic athletes or injecting pain-relieving steroids into the hip of a 90-year-old woman, every one of Dr. Kalmar’s patients is seen and treated with equal optics and provided with the highest quality diagnostic interpretations and treatment.
Adam Rudd, MD
Senior Orthopedic Radiologist
Dr. Rudd is a board-certified and fellowship-trained diagnostic radiologist specializing in Musculoskeletal/Orthopedic Imaging. He earned his MD from Chicago Medical School and completed his residency at the University of California Irvine Medical Center. In residency, he served as Chief Resident and was voted Senior Resident of the Year at graduation by his resident peers and attendings. After residency, he completed a Musculoskeletal Imaging fellowship at the University of California San Diego Medical Center under the tutelage of Dr. Donald Resnick, a leader in the field and often referred to as the “father of present-day musculoskeletal radiology.” Dr. Rudd prides himself on high quality and accurate imaging reports and developing strong professional relationships with ordering providers to provide patients with the best care possible.In his free time, Dr. Rudd's favorite activity outside of work is traveling and hiking through mountains all over the world. His favorite hikes so far have been the Dolomites and Machu Picchu, and he also spends time every summer in Vail, Colorado. He and his wife got married in the mountains near Vail in 2024 and together have thus far summited 13 of the 58 Colorado mountains over 14,000 feet high.
Joseph Yetto, MD
Director of Neuroradiology
Dr. Joseph Yetto is a board-certified neuroradiologist specializing in brain, spine, and head and neck imaging.
Dr. Yetto went to Texas Christian University for undergraduate studies earning a B.S. in Electrical Engineering. He subsequently worked as a contract engineer for Alcon Laboratories before joining the military and graduating from the military medical school, Uniformed Services University of the Health Sciences. He then completed internship at the Walter Reed National Military Medical Center in Bethesda, MD.
Afterwards, Dr. Yetto underwent additional military training to become an Undersea and Diving Medical Officer (UMO/DMO) where he received the Honor-man Award for achieving the highest training class scores in both physical fitness and academics. As a UMO/DMO, Dr. Yetto was stationed at the Navy Experimental Diving Unit in Panama City Beach, FL. During this period, he also spent time underway on the USS Rhode Island where he qualified for the additional designation as a Submarine Medical Officer.
After completing his tour at NEDU, Dr. Yetto went on to complete a diagnostic radiology residency at Naval Medical Center San Diego (NMCSD) where he was selected as the Chief Resident. Upon graduation, he was honored as one of the top graduating NMCSD residents amongst all specialties based on his academic and research accomplishments. Dr. Yetto went on to serve as a general radiologist at Naval Hospital Bremerton with a special focus on neuroradiology and musculoskeletal imaging. After 15 years of active duty service, Dr. Yetto was honorably discharged in 2022. He then completed his Neuroradiology Fellowship at the University of Florida.
Dr. Yetto is proud to be a radiologist at Diaspora Radiology (DR) where the primary focus is always the patient and high-quality imaging is the standard.
Dr. Yetto lives with his wife, 4 children, 3 dogs, and growing number of farm animals.
Joshua R. Rosengarten, MD
Orthopedic and General Radiologist
Dr. Josh Rosengarten is a board-eligible radiologist in the process of completing his musculoskeletal fellowship at Radnet/Santa Barbara Cottage Hospital after finishing his Diagnostic Radiology residency training at Rush University Medical Center in Chicago, Illinois.
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Josh turned his obsession with health, fitness and sports into a career as an MSK radiologist. His other interests include traveling around the world with Japan, Croatia and Portugal on the top of his list of places to visit next. He likes almost any outdoor activity, finding new trails to explore, hanging out at the beach, and scuba diving.
WAYNE K. MANNESS, MD
Consulting Neuroradiologist
Dr. Manness has practiced Neuroradiology exclusively for over 20 years. He is fellowship-trained and has extensive experience and expertise interpreting exams of the head, neck, and spine. He eagerly embraces new and innovative imaging techniques and equipment, such as 3T MRI. Dr. Manness enjoys professional collaboration with specialists to help them with their patients' diagnoses and treatments. His emphasis on patient care, accurate interpretation of exams, and high-quality service has made him a reliable source for clinician consults, especially for their most challenging neurological cases. In his time off, Dr. Manness enjoys spending time with his wife and 3 boys, coaching youth sports, travelling, and playing tennis.
MICHAEL TIMINS, MD
Senior Orthopedic Radiologist
Dr. Timins has practiced Musculoskeletal Radiology for 30 years after completing his residency at Northwestern University where he was chief resident. Dr. Timins completed his fellowship at the Medical College of Wisconsin (MCW) and attained a master’s degree at the University of Chicago. Before his tenure at Diaspora Radiology, Dr. Timins was an academic radiologist at MCW where he won multiple teaching awards. Dr. Timins has written and published many articles in peer-reviewed journals. He is known for his personable manner, his gratitude and friendliness in caring for the patients and the clinicians that treat them, and the dedicated care with which he interprets each and every imaging study that he reads.
ADDITIONAL TEAM MEMBERS
Maria Corona
Senior Director
Maria Corona has 17 years experience in Healthcare Operations roles. She began her career in the field as a front desk staff member while completing her degree in Economics at DePaul University. While working at GRC, LLC (a successful group of freestanding imaging centers), Northwestern Memorial Hospital (North Market), and Smart Scan MRI (a prior startup imaging center), she's held the position of Vice President of Operations, Manager of Imaging Satellites, and Executive Director. At Diaspora Radiology Maria has assumed the role of Practice Manager and Administrative Director.