Physicians Assistants

Kevin Ballard, PA-C

Kevin Ballard joined Quantum Radiology in March 2017. He obtained his Physician Assistants degree from the University of Florida College of Medicine. Kevin is a member of the American Academy of Physician Assistants and the Georgia Association of Physician Assistants.


Windy Bernard, PA-C

Windy Bernard obtained her MS in Allied Health from the University of Alabama at Birmingham. She is an active member of the Society of Interventional Radiologists (SIR), Georgia Academy of Physician Assistants (GAPA), and the American Academy of Physician Assistants (AAPA). Prior to joining Quantum Radiology, Windy was a physician assistant specializing in cardiothoracic surgery.


Catie Bittinger, PA-C

Catie Bittinger obtained her Master of Science in Medicine (MSM) from Trevecca Nazarene University, Nashville TN. She is a member of the American Academy of Physician Assistants and the Georgia Association of Physician Assistants. Prior to joining Quantum Radiology, Catie was a physician assistant specializing in emergency department care.


Erin Brandow, PA-C

Erin Brandow joined Quantum Radiology in January 2019. She obtained her Master of Medical Science (MMSc) from the College of Pharmacy and Health Sciences at Mercer University. Erin has certification in basic life support and advanced cardiovascular life support. Prior joining Quantum Radiology, Erin was a physician assistant specializing in interventional radiology and primary care. She also has experience as a pharmacy and laboratory technician.


Shea Box, PA-C

Shea Box obtained her MS in Physician Assistant studies with honors from Emory University. Shea’s previous work experience includes first and second assisting in both cardiac and thoracic OR cases at Grady Memorial Hospital and a role as an ophthalmic technician at Texan Eye. She is ACLS, BLS and NCCPA certified. Shea also has basic conversational Spanish language skills.


Nancy Demester, PA-C, CNMT, RT

Nancy Demester obtained her MS in Medical Science from Emory University. She also has a certificate in Nuclear Medicine from Ohio State University. Nancy maintains her credentials as a radiologic technologist as well. She is an active member of the Society of Interventional Radiologists (SIR), American Academy of Physician Assistants (AAPA), Georgia Academy of Physician Assistants (GAPA), and the American Society of Radiologic Technologists (ASRT).


Jon Khoury, PA

Jon Khoury obtained his Master of Medical Science from Emory University. Jon has over two decades of experience as a physician assistant specializing in minor surgical procedures, emergency medicine, and pulmonary and critical care medicine.


Mali Montgomery, PA-C

Mali Montgomery obtained her Masters of Medical Science (MMSc) from the College of Pharmacy and Health Sciences at Mercer University, Atlanta. Mali has certification in basic life support and advanced cardiac life support. Mali joined Quantum Radiology in February 2019. Mali was a physician assistant specializing in radiology prior to joining Quantum Radiology. She is a member of the American Academy of Physician Assistants and the Georgia Association of Physician Assistants.


Kelly Williams, PA-C

Kelly Williams obtained her MS in Medical Science from Emory University. She is an active member of the Society of Interventional Radiologists (SIR). Prior to becoming a physician assistant, Kelly worked as a registered dietician where she created nutritional interventions for patients living with HIV/AIDS.


Priya Verma, PA-C

Priya Verma joined Quantum Radiology in August 2020. She obtained her Physician Assistants degree from Seton Hall University and University of Medicine and Dentistry. Priya has more than 20 years of experience in asthma, immunology, allergy medicine, integrative medicine, orthopedic surgery, sports medicine. She has certification in primary care and internal medicine.


790 Church Street, Suite 400, Marietta, GA 30060
(678) 239-0420
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