Jeffrey Yoonjae Ahn
Biography
Jeffrey Yoonjae Ahn, M.D., is an Assistant Clinical Professor in the Division of Hematology/Oncology at the University of California, Irvine. He received his M.D. from the Medical College of Georgia at Augusta University in 2017, completed his internal medicine residency at Loma Linda University, and served as Chief Resident at the Jerry L. Pettis Memorial VA Medical Center before completing his Hematology Oncology Fellowship at UC Irvine in 2024. He is board certified in Internal Medicine, Medical Oncology, and Hematology.
Ahn's research has focused on cancer therapeutics and molecular mechanisms across multiple malignancies. His early work at Emory University examined CXCR4 receptor inhibition in breast cancer models, while his medical school research investigated IDO-blockade effects in glioblastoma cells. His clinical research has evaluated immune checkpoint inhibitors in non-hematologic malignancies, treatment patterns in hepatocellular carcinoma patients with liver dysfunction, and the correlation between CEA and circulating DNA in advanced colorectal cancer. He has published work on thyroid dysfunction from fibroblast growth factor receptor inhibitors and immunotherapy combinations in non-small cell lung cancer.
Ahn is a member of the American Society of Clinical Oncology and the American Society of Hematology. He was inducted into the Alpha Omega Alpha Honor Society in 2016 and received the Walter Shepeard Achievement Award in 2017. During his training, he served as Chief Resident and supervised internal medicine residents in outpatient clinics while leading teaching sessions for medical students on internal medicine fundamentals.
Return to topEducation
- BS in Biology, Emory University, 2011
- BA in Chemistry, Emory University, 2011
- MD, Medical College of Georgia at Augusta University, 2017
Distinctions
- Alpha Omega Alpha Honor Society, 2016
- Phi Kappa Phi Honor Society, 2017
- Walter Shepeard Achievement Award, 2017
- Children's Summer Scholar's Program, 2014
- Mullins Merit Scholarship, 2017
Areas of Expertise
- Hematology and Oncology
- CXCR4 Receptor Inhibition
- Immune Checkpoint Inhibitors
- MicroRNA Replacement Therapy
- Non-Small Cell Lung Cancer
- Circulating Tumor DNA Biomarkers
- Large B-Cell Lymphoma
Recent Publications
- Ahn J, Ouyang Y, Velasco G, Eapen A, Ma H, “A case report of solitary presentations of large B-cell lymphoma of immune-privileged sites (IP-LBCL) in the testis, vitreous body, and skin” (opens in new tab), Leukemia and Lymphoma, vol. 65, no. 13, pp. 2044-2047, 2024.
- Jeffrey Ahn, Hansen Bow, Ann Eapen, Xiao-Tang Kong, “Complete tumor disappearance on brain MRI after standard chemoradiation therapy for a molecular glioblastoma, PATH-31” (opens in new tab), Neuro-Oncology, vol. 26, no. Supplement_8, pp. viii185, 2024.
- Ahn JY, Nagasaka M, “Neptune, the Next Pluto?-Durvalumab and Tremelimumab Face Challenges in Entering the NSCLC Space” (opens in new tab), J Thorac Oncol, vol. 18, no. 1, pp. 29-30, 2023.
- Ahn J, Nagasaka M, “Spotlight on Cemiplimab-rwlc in the Treatment of Non-Small Cell Lung Cancer (NSCLC): Focus on Patient Selection and Considerations” (opens in new tab), Cancer Manag Res, vol. 15, pp. 627-634, 2023.
- Hoda Pourhassan, Jeffrey Ahn, Esther Chong, Chung-Tsen Hsueh, “Development of Cutaneous Secondary Primary Malignancy in the Context of Long-term Lenalidomide Use”, 2020. Presented at Riverside University Health System Research Symposium, Moreno Valley, California, May 2020.
- Ahn J, Moyers J, Wong J, Hsueh CT, “Thyroid dysfunction from inhibitor of fibroblast growth factor receptor” (opens in new tab), Exp Hematol Oncol, vol. 8, pp. 6, 2019.
- Madalitso Chundu, Jeffrey Ahn, Daniel Amponsah, Shannice Baker, Jose Rodriquez, Gary Thompson, “Cephalosporin induces Warm-type Autoimmune Hemolytic Anemia in Chronic Hepatitis C Infection”, 2018. Presented at Riverside University Health System Research Symposium, Moreno Valley, California, May 2018.
- Jeffrey Ahn, Lorien Ahn, James Huang, “A Case Report of Overt Disseminated Intravascular Coagulopathy Caused by Klebsiella Pneumoniae Bacteremia/UTI”, 2018. Presented at American College of Physician Southern California Poster Competition, Huntington Beach, California, October 2018.
- Ahn JY, Gamble D, Li M, Bolduc A, Johnson TS, “Blocking indoleamine 2,3-dioxygenase decreases total Treg number in tumors treated with chemotherapy”, 2014. Presented at Asian Pacific American Medical Student Association National Conference; Medical Association of Georgia, 160th House of Delegates Meeting; American Medical Association Interim Meeting, Las Vegas, Nevada; Pine Mountain, Georgia; Dallas, Texas, September 2014; October 2014; November 2014.
- Liang Z, Ahn J, Guo D, Votaw JR, Shim H, “MicroRNA-302 replacement therapy sensitizes breast cancer cells to ionizing radiation” (opens in new tab), Pharm Res, vol. 30, no. 4, pp. 1008-16, 2013.
- Mooring SR, Liu J, Liang Z, Ahn J, Hong S, Yoon Y, Snyder JP, Shim H, “Benzenesulfonamides: a unique class of chemokine receptor type 4 inhibitors” (opens in new tab), ChemMedChem, vol. 8, no. 4, pp. 622-32, 2013.
This profile was created with the help of AI.
Last updated on 2/24/2026.