Our Radiologists

We are committed to creating a new vision of teleradiology, accomplishing this mission by utilizing the expertise of our radiologists and their input to create a democratic, transparent and fair practice. RP Matrix is invested in creating a supportive and collaborative community.

CONTACT US

Dr. Kent Hutson
Neuroradiologist

RP Matrix Local Practice Board

LPB

Dr. William Hartz

Dr. William Hartz practices as an evening-shift teleradiologist for RP Matrix. Additionally, he serves as a member of the local practice board for RP Matrix. He is based in Wynnewood, Pennsylvania.

Before joining RP Matrix, Dr. Hartz practiced for 30 years in a hospital setting, serving in multiple leadership roles including medical staff president, hospital medical director and board member. He also co-managed a multimodality imaging center business for 15 years.

Dr. Hartz completed his residency and fellowship at the University of Pennsylvania. He specializes in interventional radiology.

Kyle Hendrix
Southwest Pod President and LPB

Dr. Kyle Hendrix

Dr. Kyle Hendrix practices as an overnight-shift teleradiologist for RP Matrix. Additionally, he serves as Southwest Pod President and a member of the local practice board (LPB). He is based in San Antonio.

Dr. Hendrix earned his medical degree from the University of North Texas Health Science Center in Fort Worth. He completed his residency and fellowship at the University of Illinois in Champaign. He specializes in interventional radiology.

Dr. Nina Kottler
LPB

Dr. Nina Kottler

Dr. Nina Kottler practices as a diagnostic teleradiologist and serves on the local practice board for RP Matrix. She was the first radiologist to join RP and drove the creation and implementation of recoMD, the Practice’s AI tool. Dr. Kottler also serves on multiple committees with the American College of Radiology, Radiological Society of North America, Society for Imaging Informatics in Medicine and RADxx. She is based in San Diego.

Dr. Kottler also serves as ACMO of Clinical Artificial Intelligence and Vice President of Clinical Operations for Radiology Partners, advancing business intelligence by identifying new technologies and piloting programs to enhance design, metrics and assessments through the deployment of AI products.

Dr. Kottler earned her medical degree from the University of Massachusetts Medical School in Worcester and completed her residency at the University of California, San Diego.

Practice President

Dr. Jorge Ramirez

Dr. Jorge Ramirez practices as an evening-shift teleradiologist and serves as president for RP Matrix. Additionally, he is chairman of RP Matrix's local practice board. He is based in Tampa, Florida.

Dr. Ramirez earned his medical degree from University of Puerto Rico. He completed his internship at Tulane University in New Orleans, his residency at Louisiana State University in Baton Rouge and his fellowship at Duke University in Durham, North Carolina. He specializes in thoracic radiology.

Dr. Danit Talmi
LPB

Dr. Danit Talmi

Dr. Danit Talmi practices as a swing-shift teleradiologist and serves on the local practice board for RP Matrix. She has participated in multiple committees at RP Matrix, including recruiting, onboarding and peer learning. She is based in Monument, Colorado.

Prior to joining RP, Dr. Talmi worked for a local private practice in Denver before transitioning to teleradiology in 2009.

She earned her medical degree from Syracuse University in New York, and she completed her residency and fellowship at the University of Maryland Medical Center in Baltimore. She specializes in musculoskeletal radiology.

Dr. Warpinsky
LPB

Dr. Amy Warpinski

Dr. Amy Warpinski practices as a day-shift teleradiologist for RP Matrix, where she serves as a partner and local practice board member. She is based in Michigan.
She earned her medical degree from Midwestern University Chicago College of Osteopathic Medicine, and she completed her residency at Michigan State University in East Lansing.

Hear from our radiologist leaders.

I saw Matrix as an opportunity to exit a stale job where I felt isolated and disconnected. I craved a partnership where thoughts and opinions were expressed and most importantly incorporated. Now, as part of Matrix, I have had the opportunity to rekindle my passion for radiology and grow as a leader. I am able to fully utilize my clinical skills to care for our patients and my leadership skills to partner with our practices. Matrix is a practice where we are all enthusiastically involved, and collectively, we have created a team where we feel valued, supported and respected. We believe in what we have built as a practice and look forward to continue incorporating innovative ideas from our existing and new teammates.

Dr. Jorge Ramirez

I often reference the quote ‘Diversity is having a seat at the table, inclusion is having a voice and belonging is having that voice be heard.’ Women are severely underrepresented in radiology, and even more so in radiology leadership. At RP Matrix, that is not the case. While we are transforming radiology as a specialty, we are also transforming how women are represented and recognized within that specialty. At RP Matrix, most of our physician leaders are women. It takes this kind of bold move to effect the current norms.

Dr. Nina Kottler

Regional Pod Presidents

Dr. Bonetti
Pediatric Pod President

Dr. Renee' Bonetti

Dr. Renee' Bonetti practices as an overnight teleradiologist for RP Matrix. Additionally, she serves as the RP Matrix Pediatric Pod President and member of the local practice board. She is based in Alabama.

She earned her medical degree from the University of South Alabama in Mobile, and she completed her residency at USA Health University Hospital in Mobile and fellowship at Monroe Carell Jr. Children's Hospital at Vanderbilt in Nashville. She specializes in pediatric radiology.

Dr. Anne Giuliano
East Pod President

Dr. Anne Giuliano

Dr. Anne Giuliano serves as an evening-shift teleradiologist for RP Matrix. Additionally, she serves as the RP Matrix East Pod President. She is based in Billings, Montana.

Prior to joining RP, Dr. Giuliano practiced as a hospital-based interventional radiologist, and she served on many committees and even as chair of the radiologist department. After transitioning out of hospital-based practice, she treated venous disease and non-healing wounds.

She earned her medical degree from the University of Massachusetts in Amherst, and she completed her residency and fellowship at the University of Utah in Salt Lake City. She specializes in vascular and interventional radiology.

Dr. Greg Hall
Midwest Pod President

Dr. Greg Hall

Dr. Gregory Hall practices as a general diagnostic teleradiologist for RP Matrix. Additionally, he serves as RP Matrix Pod President for the Midwest area. He is based in Hilton Head, South Carolina.

Dr. Hall has practiced teleradiology since he retired from the U.S. Navy in 2013. Prior to teleradiology, Dr. Hall served as the radiology department head at the Naval Medical Center at Camp Lejeune, North Carolina, and the radiology department head and director of clinical support services at the Expeditionary Medical Facility in Kuwait.

He earned his medical degree from Uniformed Services University in Bethesda, Maryland. He completed his pediatric internship at the Naval Medical Center of Portsmouth, Virginia, and his residency at the National Capital Consortium in Bethesda, Maryland.

Kyle Hendrix
Southwest Pod President and LPB

Dr. Kyle Hendrix

Dr. Kyle Hendrix practices as an overnight-shift teleradiologist for RP Matrix. Additionally, he serves as Southwest Pod President and a member of the local practice board (LPB). He is based in San Antonio.

Dr. Hendrix earned his medical degree from the University of North Texas Health Science Center in Fort Worth. He completed his residency and fellowship at the University of Illinois in Champaign. He specializes in interventional radiology.

Dr. Tony Maung
Pod President, Day Team

Dr. Tony Maung

Dr. Tony Maung practices as a teleradiologist for RP Matrix. Additionally, he serves as the RP Matrix Day Team Pod President. He is based in San Diego, California.

Dr. Maung has been practicing as a teleradiologist for most of his career. He has participated in quality assurance and peer learning committees and assisted with administrative and consulting roles at multiple hospitals.

He completed his residency and fellowship at Harbor-UCLA Medical Center. He specializes in neuroradiology.

Dr. Anand Singh
West Pod President

Dr. Anand Singh

Dr. Anand Singh serves as an evening teleradiologist for RP Matrix. Additionally, he serves as RP Matrix West Pod President and Director of Peer Learning. He is a member of the ACR Military Subcommittee and contributes to a national quality measures workgroup. He is based in Louisville, Kentucky.

Prior to joining RP, Dr. Singh served in the U.S. Air Force as an active-duty radiologist including a tour in Iraq and serving as Chief of MRI and Special Procedures at Scott Air Force Base in Illinois. He returned to MIR for fellowship and then joined a private practice in Louisville for 11 years, acting as the group’s operations officer and guiding the COVID-19 response.

Dr. Singh earned his medical degree from the University of Alabama. He completed his internship at Santa Clara Valley Medical Center and his residency and fellowship at Mallinckrodt Institute of Radiology. He specializes in musculoskeletal imaging.