Jennifer Tseng, M.D.

Double board-certified surgical oncologist Jennifer Tseng, M.D., F.A.C.S., is a breast surgeon in Orange County, California who firmly believes in shared decision-making between physicians and patients. She is a strong patient advocate and sets high standards of care, continually striving for improvement and meticulously planning surgeries to provide cancer patients with the best possible outcomes.

Dr. Tseng is a native of Southern California, having grown up in Orange County, California. She attended medical school at the University of California, Davis. She completed her General Surgery residency training at Oregon Health and Science University and fellowship training in Clinical Immunotherapy at the National Cancer Institute and Complex General Surgical Oncology at University of Chicago. She pursued additional fellowship training in medical education and clinical medical ethics at the internationally renowned MacLean Center at University of Chicago.

Dr. Tseng has expertise in addressing cancers of the breast, skin, and soft tissue. As Medical Director of Breast Surgery at City of Hope Orange County, she is committed to offering patients a slate of cancer treatment options, including oncoplastic surgery, open nipple-sparing mastectomies with immediate implant reconstruction and innovative clinical trials. As a researcher, she has co-authored over 100 peer-reviewed publications, review articles, book chapters and abstracts, including studies in the Journal of Clinical Oncology, Annals of Surgery and Annals of Surgical Oncology.  

Before joining City of Hope, Dr. Tseng was an Assistant Professor of Surgery at University of Chicago, where she was recognized with her department’s Excellence in Teaching Award. She holds leadership and committee positions within the Society of Surgical Oncology, American Society of Clinical Oncology and American Society of Breast Surgeons.

Dr. Tseng is extremely happy to return to the place she considers home and serve the local community. Away from medicine, she loves spending time with family and friends. She enjoys exploring new restaurants, the local arts scene, and traveling.

• 2020, Best Masters in Health Professions Education (MHPE) 503 Core Course Paper Award for “Formative Evaluation of a Resident Research Fellowship in General Surgery”
• 2017-2022, Excellence in Teaching Award, University of Chicago Department of Surgery
• 2018, Honorable Mention for Excellence (Primary Investigator), Pritzker Summer Research Program, University of Chicago
• 2018, 25th Annual Charles B. Huggins Research Symposium Student Oral Presentation Winner (Primary Investigator), University of Chicago Department of Surgery
• 2011, Best General Surgery Resident, Portland VAMC Cardiothoracic Surgery Service

• Tseng J, Bazan JG, Minami CA, Schonberg MA. Not Too Little, Not Too Much: Optimizing More Versus Less Locoregional Treatment for Older Patients With Breast Cancer. Am Soc Clin Oncol Educ Book. 2023 Jun;43:e390450. doi: 10.1200/EDBK_390450. PMID: 37327467.
• Terman E, Sheade J, Zhao F, Howard FM, Jaskowiak N, Tseng J, Chen N, Hahn O, Fleming G, Huo D, Nanda R. The impact of race and age on response to neoadjuvant therapy and long-term outcomes in Black and White women with early-stage breast cancer. Breast Cancer Res Treat. 2023 Jul;200(1):75-83. doi: 10.1007/s10549-023- 06943-x. Epub 2023 Apr 29. PMID: 37120458; PMCID: PMC10224832.
• Thalji SZ, Ethun CG, Tsai S, Gamblin TC, Clarke CN, Bedi M, King D, LoGiudice J, Poultsides G, Grignol VP, Tseng J, Votanopoulos K, Fields RC, Cardona K, Mogal H. Outcomes of plastic surgical reconstruction in extremity and truncal soft tissue sarcoma: Results from the US Sarcoma Collaborative. J Surg Oncol. 2023 Mar;127(4):550-559. doi: 10.1002/jso.27169. Epub 2022 Dec 7. PMID: 36477427.
• Gusho CA, King D, Ethun CG, Cardona K, Harrison Howard J, Tran TB, Poultsides G, Tseng J, Roggin KK, Fields RC, Cullinan DR, Chouliaras K, Votanopoulos K, Grignol VP, Bedi M. Extraskeletal myxoid chondrosarcoma: Clinicopathological features and outcomes from the United States sarcoma collaborative database. J Surg Oncol. 2022 Dec;126(8):1533-1542. doi: 10.1002/jso.27062. Epub 2022 Aug 13. PMID: 35962783.
• Strand SH, Rivero-Gutiérrez B, Houlahan KE, Seoane JA, King LM, Risom T, Simpson LA, Vennam S, Khan A, Cisneros L, Hardman T, Harmon B, Couch F, Gallagher K, Kilgore M, Wei S, DeMichele A, King T, McAuliffe PF, Nangia J, Lee J, Tseng J, Storniolo AM, Thompson AM, Gupta GP, Burns R, Veis DJ, DeSchryver K, Zhu C, Matusiak M, Wang J, Zhu SX, Tappenden J, Ding DY, Zhang D, Luo J, Jiang S, Varma S, Anderson L, Straub C, Srivastava S, Curtis C, Tibshirani R, Angelo RM, Hall A, Owzar K, Polyak K, Maley C, Marks JR, Colditz GA, Hwang ES, West RB. Molecular classification and biomarkers of clinical outcome in breast ductal carcinoma in situ: Analysis of TBCRC 038 and RAHBT cohorts. Cancer Cell. 2022 Dec 12;40(12):1521-1536.e7. doi: 10.1016/j.ccell.2022.10.021. Epub 2022 Nov 17. Erratum in: Cancer Cell. 2023 Jul 10;41(7):1381. PMID: 36400020; PMCID: PMC9772081.
• Nash AL, Thomas SM, Nimbkar SN, Hieken TJ, Ludwig KK, Jacobs LK, Miller ME, Gallagher KK, Wong J, Neuman HB, Tseng J, Hassinger TE, King TA, Hwang ES, Jakub JW, Rosenberger LH. Racial-ethnic variations in phyllodes tumors among a multicenter United States cohort. J Surg Oncol. 2023 Mar;127(3):369-373. doi: 10.1002/jso.27117. Epub 2022 Oct 7. PMID: 36206024; PMCID: PMC9892174.
• Teller P, Nguyen TT, Tseng J, Allen L, Matsen CB, Bellavance E, Kaufman D, Hieken T, Nagel S, Patten C, Pomerenke L, Tevis SE, Sarantou T. Innovation in Breast Surgery: Practical and Ethical Considerations. Ann Surg Oncol. 2022 Oct;29(10):6144-6150. doi: 10.1245/s10434-022-12136-5. Epub 2022 Jul 19. PMID: 35854028.
• Expert Panel on Breast Imaging, Brown A, Lourenco AP, Niell BL, Cronin B, Dibble EH, DiNome ML, Goel MS, Hansen J, Heller SL, Jochelson MS, Karrington B, Klein KA, Mehta TS, Newell MS, Schechter L, Stuckey AR, Swain ME, Tseng J, Tuscano DS, Moy L. ACR Appropriateness Criteria® Transgender Breast Cancer Screening. J Am Coll Radiol. 2021 Nov;18(11S):S502-S515. doi: 10.1016/j.jacr.2021.09.005. PMID: 34794604.
•  Lee RM, Ethun CG, Gamboa AC, Turgeon MK, Tran T, Poultsides G, Grignol V, Bedi M, Mogal H, Clarke CN, Tseng J, Roggin KK, Chouliaras K, Votanopoulos K, Krasnick BA, Fields RC, Oskouei SV, Monson DK, Reimer NB, Maithel SK, Pickens A, Cardona K. A novel preoperative risk score to guide patient selection for resection of soft tissue sarcoma lung metastases: An analysis from the United States Sarcoma Collaborative. J Surg Oncol. 2021 Aug 10. doi: 10.1002/jso.26635. Epub ahead of print. PMID: 34374088
• Mojtahed SA, Boyer NR, Rao SA, Gajewski TF, Tseng J, Turaga KK. Cost-Effectiveness Analysis of Adjuvant Therapy for BRAF-Mutant Resected Stage III Melanoma in Medicare Patients. Ann Surg Oncol. 2021 Jun 15. doi: 10.1245/s10434-021-10288-4. Epub ahead of print. PMID: 34129153.

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