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Julia C. Tchou, MD, PhD, FACS

Julia C. Tchou, MD, PhD, FACS Physician

Co-Director, Rena Rowan Breast Center Section Chief, of Breast Surgery Professor of Clinical Surgery

Languages spoken:

  • Yue Chinese

Dr. Tchou is employed by Penn Medicine.

About Dr. Julia C. Tchou

Recognized by America's Top Doctors 2015 – 2018

Recognized by Best Doctors in America 2015, 2016

Recognized in Philadelphia magazine's annual Top Docs issues for 2018 and 2019

Patient Satisfaction Ratings

Patient Rating Breakdown

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

Overall Ratings

Clinical Specialties


  • Endocrine and Oncologic Surgery

Programs & Centers:

Board Certification:

  • Surgery, 2010

Clinical Expertise:

  • Breast Cancer
  • Breast Cancer Follow Up
  • Carcinoma In Situ of Breast
  • Clinical Trials
  • Cystosarcoma Phyllodes
  • ER Positive Breast Cancer
  • HER2/Neu Receptor
  • Immunotherapy
  • Invasive Breast Cancer
  • Lumpectomy
  • Lymph Node Dissection
  • Mastectomy
  • Metastatic Axillary Cancer
  • Nipple Sparing Mastectomy
  • Oncoplastic Surgery
  • Sentinel Lymph Node Biopsy
  • Skin Sparing Mastectomy
  • Triple-Negative Breast Cancer

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: State University of New York at Stony Brook
Residency: Johns Hopkins Hospital
Fellowship: Johns Hopkins Hospital
Fellowship: Northwestern Medical Center


American Associate of Cancer Research, National American Cancer Society Institutional Research Grant at the Wistar Institute, National American College of Surgeons, National American Society of Clinical Oncology, National Association of Academic Surgery, National Association of Women Surgeons, National Breast Cancer Alliance, National Breast Cancer Research Program, Department of Defense Congressionally Directed Medical Research programs, National Cancer Center at the Wistar Institute, Local Developmental Pilot Project Grant Review, TREC, National ECOG Breast Committee's Local-Regional Working Group, Local Global Breast Cancer Tumor Board, National NIH/NCI IMAT, National NIH/NCI Provocative Questions Initiative Grant Review panel member, National NIH/NCI UH2/UH3, National Scientist Reviewer, Department of Defense, CDRMP, Breast Cancer Research Program, National Society of Surgical Oncology, National The Wistar Institute Cancer Center,, Local Tumor Microenvironment and Metastasis Program, The Wistar institute, Philadelphia, PA, Local

Hospital Affiliation

Dr. Tchou is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.


Description of Research Expertise:

My research is focused on 1) developing strategies to mitigate breast cancer risk associated with metabolic syndrome by lifestyle modifications and by re-purposing some of the commonly prescribed medications to prevent breast cancer initiation and progression; 2) elucidating how novel immunotherapy such as CAR T therapy can induce epitope spreading and how combination therapy can unleash the anti-tumor effects of our own immune system; and 3) how we can use large data to enhance our understanding of tumor biology with the common goal of improving breast cancer outcomes.

Selected Publications:

Hoffman DI, Zhang PJ, Tchou J: Breast-conserving surgery for pure non-classic lobular carcinoma in situ: A single institution's experience Surgical Oncology 28 : 190-194,2019.

Ferrari N, Ranftl R, Chicherova I, Slaven ND, Moeendarbary E, Farrugia AJ, Lam M, Semiannikova M, Westergaard MCW, Tchou J, Magnani L, Calvo F: Dickkopf-3 links HSF1 and YAP/TAZ signalling to control aggressive behaviours in cancer-associated fibroblasts Nature Communications 10 (1): 130,2019.

Williams AD, Reyes SA, Arlow RL, Tchou J, De La Cruz LM: Is age trumping genetic profiling in clinical practice? Relationship of chemotherapy recommendation and oncotype DX recurrence score in patients aged < 50 years versus ≥ 50 years, and trends over time Annals of Surgical Oncology 25 (10): 2875-2883,2018.

Williams AD, Li YR, So A, Steel L, Carrigan E, Ro V, Nguyen J, Tchou J: The impact of aspirin use on breast cancer subtype and clinical course Journal of Surgical Research 230 : 71-79,2018.

Williams AD, So A, Tchou J: Overall survival is similar between women who seek care at one or more institutions after diagnosis of operable breast cancer in the community Surgical Oncology 27 (3): 387-391,2018.

Modarressi T, Levine MA, Tchou J, Khan AN: Gestational gigantomastia complicated by PTHrP-mediated hypercalcemia Journal of Clinical Endocrinology & Metabolism 103 (9): 3124-3130,2018.

Yoon-Flannery K, DeStefano LM, De La Cruz LM, Fisher CS, Lin LY, Coffua LS, Mustafa RE, Sataloff DM, Tchou JC, Brooks AD: Quality of life and sexual well-being after nipple sparing mastectomy: A matched comparison of patients using the breast Q Journal of Surgical Oncology 118 (1): 238-242,2018.

So Alycia, De La Cruz Lucy M, Williams Austin D, Bahng Joseph, Liao Geraldine, McDonald Elizabeth S, Fisher Carla S, Czerniecki Brian J, Sataloff Dahlia, Tchou Julia: The impact of preoperative magnetic resonance imaging and lumpectomy cavity shavings on re-excision rate in pure ductal carcinoma in situ-A single institution's experience Journal of Surgical Oncology 117 (4): 558-566,2018.

Jakub James W, Peled Anne Warren, Gray Richard J, Greenup Rachel A, Kiluk John V, Sacchini Virgilio, McLaughlin Sarah A, Tchou Julia C, Vierkant Robert A, Degnim Amy C, Willey Shawna: Oncologic safety of prophylactic nipple-sparing mastectomy in a population with BRCA mutations: A multi-institutional study JAMA Surgery 153 (2): 123-129,2018.

Williams AD, Payne KK, Posey AD Jr, Hill C, Conejo-Garcia J, June CH, Tchou J: Immunotherapy for breast cancer: Current and future strategies Current Surgical Reports 5 : pii: 31,2017.

Academic Contact Info

Division of Endocrine & Oncologic Surgery
3400 Civic Center Boulevard
Perelman Center, 3rd Floor West

Philadelphia, PA 19104-4283
Phone: (215) 615-7575
Patient appointments: 800-789-7366 (PENN)

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