Gemmy Hannsun MD

Abdominal Imaging, Breast Imaging, Nuclear Medicine, Women's Imaging

Radiologist

101 The City Dr SOrange, CA 92868
Phone+1 714-456-8888

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Summary

Dr. Gemmy Hannsun is a radiologist based in Santa Ana, CA, specializing in radiology with subspecialties in abdominal imaging, breast imaging, nuclear medicine, and women's imaging. He completed his medical education at the University of California, Davis, and a radiology residency and women's imaging fellowship at the University of California, San Diego Medical Center. Dr. Hannsun currently practices at Santa Tustin Radiology Medical Group and has prior experience at several healthcare institutions, including the VA Medical Center and UC San Diego Health. His research contributions include several published works in reputable journals on topics such as contrast-enhanced mammography and the myelination process. He has been recognized with honors such as Alpha Omega Alpha from the Alpha Omega Alpha Honor Medical Society.

Education & Training

University of California (San Diego) Medical CenterFellowship, Women's Imaging, 2021 - 2022
University of California (San Diego) Medical CenterResidency, Radiology-Diagnostic, 2017 - 2021
Kaiser Permanente Southern California (Los Angeles)Residency, Internal Medicine, 2016 - 2017
University of California, Los AngelesBS, Biochemistry , Sum Laude, 2012 - 2016
University of California, Davis, School of MedicineClass of 2016

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Certifications & Licensure

CA State Medical License 2018 - 2027
American Board of Radiology Diagnostic Radiology
American Board of Radiology Diagnostic Radiology with Special Competence in Nuclear Radiology
American Board of Radiology Nuclear Radiology
Fluoroscopy Supervisor and Operator LicenseCDPH

Awards, Honors, & Recognition

Alpha Omega Alpha Alpha Omega Alpha Honor Medical Society, 2015
Merck Index Award University of California, Los Angeles, Department of Chemistry and Biochemistry, 2008

Publications & Presentations

PubMed

11 citations
Diagnosis and Management of Transplanted Kidney Extrarenal Pseudoaneurysms: A Series of Four Cases and a Review of the Literature
Ghaneh Fananapazir, Gemmy Hannsun, Luke Wright, Michael T. Corwin, Christoph Troppmann
Cardiovascular and Interventional Radiology. 2016-07-20
38 citations
Therapeutic laquinimod treatment decreases inflammation, initiates axon remyelination, and improves motor deficit in a mouse model of multiple sclerosis
Spencer M. Moore, Anna J. Khalaj, JaeHee Yoon, Rhusheet Patel, Gemmy Hannsun
Brain and Behavior. 2013-11-01
22 citations
Sex chromosome complement influences functional callosal myelination.
Spencer M. Moore, Rhusheet Patel, Gemmy Hannsun, Joy C Yang, Seema K. Tiwari-Woodruff
Neuroscience. 2013-08-15

Journal Articles

Contrast-Enhanced Mammography: Technique, Indications, and Review of Current Literature
Gemmy Hannsun, Stephen Saponaro, Paul Sylvan, Azadeh Elmi, Current Radiology Reports, 11/3/2021

Grant Support

Sutter Health PhilanthropySutter Medical Center2013–2014

Research History

Women's Imaging FellowUCSD Breast Health Center, Department of Breast Imaging, San Diego, California 2021 - 20222021 - 2022
Graduate ResearcherDr. Ghaneh Fananapazir, University of California, Davis School of Medicine, Department of Radiology, Sacramento, California2015 - 2016
Undergraduate Research AssistantTiwari-Woodruff Laboratory, University of California, Los Angeles, Department of Neurology, Los Angeles, California2009 - 2012