Chandler S. Cortina, MD, MS, FSSO, FACS
Associate Professor
Location
- Clinical Cancer Center - Froedtert Hospital
- 8800 W. Doyne Ave.
- Milwaukee, WI 53226
Specialties
- Surgical Oncology
Clinical Cancer Center - Froedtert Hospital
Dr. Chandler Cortina is a Breast Surgical Oncologist and health services and clinical outcomes researcher. His clinical practice is solely dedicated to caring for patients with malignant and benign surgical breast disease. He works closely with the multidisciplinary breast team to ensure each patient receives personalized and cutting-edge clinical care.
Overview
Diseases and Conditions
- Benign Breast Disease
- Breast Cancer
- Inflammatory Breast Cancer (IBC)
- Breast Cancer Gene Mutations
- Ductal Carcinoma in Situ (DCIS)
- Lobular Carcinoma in Situ (LCIS)
- Invasive Ductal Cancer
- Invasive Lobular Cancer
- HER2 Breast Cancer
- Triple-Negative Breast Cancer
- Male Breast Cancer
- Paget’s Disease of the Breast
Treatments and Services
- Breast Surgery
- Lumpectomy
- Mastectomy
- Sentinel Lymph Node Biopsy (SLNB)
- Virtual Visit
- Axillary Lymph Node Dissection
- Skin-Sparing Mastectomy
- Nipple-Sparing Mastectomy
- Excisional Biopsy, Breast, and Axilla
- Modified Radical Mastectomy
- Risk-Reducing Mastectomy
Patients Ages Seen
- Adult
- Senior
Languages
- English
Hospital Affiliations
- Froedtert Menomonee Falls Hospital – Menomonee Falls
- Froedtert Hospital – Milwaukee
- Froedtert West Bend Hospital – West Bend
Board Certifications
- Surgery
Clinic Locations
Clinical Cancer Center - Froedtert Hospital
- 8800 W. Doyne Ave.
- Milwaukee, WI 53226
- (414) 805-0505
- Get Directions
Biography
Dr. Cortina is highly involved in research and has published numerous manuscripts, including articles in high-impact journals such as The Lancet, JAMA Oncology, JAMA Surgery, and the Annals of Surgical Oncology where he is also a member of the journal’s Editorial Board. His current research focuses on understanding how gender-affirming care may alter cancer risk, screening practices, and treatment recommendations for gender-diverse populations as well as how novel systemic therapies impact surgical decision-making and surgical outcomes for breast cancer patients.
Dr. Cortina’s research is funded through grants from the National Institute of Health’s National Cancer Institute (NIH/NCI), the Patient-Centered Outcomes Research Institute (PCORI), and the Advancing a Healthier Wisconsin endowment (AHW). He is also actively involved in several surgical and oncological societies and serves on committees for the Society of Surgical Oncology, the American Society of Breast Surgeons, and the Central Surgical Association. Within the Medical College, he serves as Breast Clerkship Director for the Complex General Surgical Oncology fellowship program and leads the Section of Breast Surgery’s quarterly Breast Surgical Oncology Journal Club.
Education and Training
Doctor of Medicine - Louisiana State University Health Science Center - Shreveport, LA (2013)
Internship & Residency in General Surgery - Rush University Medical Center - Chicago, IL (2013-2018)
Fellowship in Breast Surgical Oncology - Northwestern University, Feinberg School of Medicine - Chicago, IL (2018-2019)
Master of Science - Medical College of Wisconsin - Milwaukee, WI (2019-2021)
Publications
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The growing high-risk population.
(Walker JC, Kong AL, Cortina CS.) Am J Surg. 2026 Oct;260:117091 PMID: 42321118 PMCID: PMC13390806 SCOPUS ID: 2-s2.0-105042914707 06/20/2026
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Long-Term Outcomes of a Statewide Initiative to Reduce Margin Re-Excisions After Lumpectomy.
(Cortina CS, Yang Q, Cartmill R, Zhu P, Hanlon BM, Pung D, Pavuluri Quamme SR, Lawson E, Weber JJ, Lautner MA, Kong AL, Schumacher J.) JAMA Surg. 2026 Sep 02 PMID: 42684690 PMCID: PMC13539435 09/03/2026
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Breast Cancer Outcomes in Intersex Individuals in the National Cancer Database.
(Chan K, Cohen L, Cotler JH, Carthcart-Rake E, Berry AW, Berner AM, Cortina CS.) Ann Surg Oncol. 2026 Sep;33(9):7825-7829 PMID: 42323454 PMCID: PMC13380831 SCOPUS ID: 2-s2.0-105042381757 06/21/2026
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(Conroy MM, Gaur KS, Rein LE, Szabo A, Walker J, Cobb A, Cortina CS, Kong AL.) Ann Surg Oncol. 2026 Aug 22 PMID: 42632876 SCOPUS ID: 2-s2.0-105047935528 08/23/2026
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Assessing Time to Surgery in Asian Women With Breast Cancer: A National Cancer Database Analysis.
(Gaur KS, Conroy MM, Rein LE, Szabo A, Walker J, Cobb A, Cortina CS, Kong AL.) J Surg Oncol. 2026 Aug 10 PMID: 42574586 SCOPUS ID: 2-s2.0-105046906771 08/10/2026
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ASO Author Reflections: Artificial Intelligence in the Scientific Merit Review Process.
(Cohen LN, Seibert D, Kothari AN, Cortina CS.) Ann Surg Oncol. 2026 Jul 30 PMID: 42530842 07/30/2026
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(Cohen LN, Seibert D, Kosten T, Wolfrath N, Al-Hilli Z, Kantor O, Singh P, Teshome M, Blair S, Hieken TJ, Wilke LG, Kothari A, Cortina CS.) Ann Surg Oncol. 2026 Jul 15 PMID: 42458167 07/16/2026
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Expanding Eligibility for Targeted Axillary Dissection.
(Cortina CS, Hieken TJ.) Ann Surg Oncol. 2026 Jul 06 PMID: 42406217 PMCID: PMC13401757 07/06/2026
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(Cohen LN, Seibert D, Kosten T, Wolfrath N, Al-Hilli Z, Kantor O, Singh P, Teshome M, Blair S, Hieken TJ, Wilke LG, Kothari A, Cortina CS.) Ann Surg Oncol. 2026 Jul 06 PMID: 42406210 PMCID: PMC13401758 SCOPUS ID: 2-s2.0-105044052438 07/06/2026
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Characteristics of Gender-Diverse Patients With Breast Cancer.
(Cortina CS, Brazauskas R, Flanagan MR, Dill ED, Joseph KP, Trifonov A, Mukhtar RA, Kim EA, Kantor O, Barmettler G, Rezak KM, Rosenberger LH, Jordan SW, Perez MM, Jimenez RB, Smart AC, Kopkash KA, Hughes TM, Walker JC, Lautner MA, Siegel EL, Brabender DE, Al-Hilli Z, Cassidy MR, Weiss A, McCaffrey RL, Lee MC, Kaoutzanis C, Nguyen KN, Son JD, Williams AD, Madrigrano A, McLaughlin SA, Petroll AE, Stolley M.) JAMA Netw Open. 2026 Jul 01;9(7):e2624824 PMID: 42490110 PMCID: PMC13397088 SCOPUS ID: 2-s2.0-105045912460 07/23/2026
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(Barmettler G, Kohlbeck S, Cortina CS, Kantor O.) Am J Surg. 2026 Jul;257:116947 PMID: 41950722 PMCID: PMC13197973 SCOPUS ID: 2-s2.0-105035098399 04/09/2026
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ASO Author Reflections: Eliminating Surgical Oncology Health Disparities Through Actionable Change.
(Cortina CS, Myers SP, Molina G, Bea VJ, Willis A.) Ann Surg Oncol. 2026 Jun;33(6):4955-4956 PMID: 41817935 PMCID: PMC13154307 SCOPUS ID: 2-s2.0-105033501635 03/12/2026