Dr. Joyce Au is a breast surgeon who offers a wide range of breast cancer procedures, including lumpectomy and nipple-sparing mastectomy. She is passionate about providing highly individualized care and makes sure every patient is comfortable and fully informed when it comes to making decisions about their breast care.

Working with a comprehensive multidisciplinary team of radiation oncologists, medical oncologists, radiologists, genetic counselors and plastic surgeons, she makes sure her patients understand every aspect of their care.

Dr. Au is also fluent in Cantonese.

Dr. Au is an Assistant Professor at the Donald and Barbara Zuckor School of Medicine at Hofstra/Northwell and an accomplished author amongst her peers. Since childhood, she was always fascinated with medicine, science and the human body and continues to engage in clinical trial studies, including partnering with Cold Spring Harbor Laboratory on breast cancer research. She has received numerous awards for her kind and compassionate care, including the Northwell’s Patient Choice award.

"Dr. Au was extremely thorough in her explanation of my condition and treatment options and showed great care for me as a person."


  • Advanced Training in Breast and Melanoma Surgery, Fox Chase Cancer Center
  • Residency in General Surgery, SUNY Downstate
  • Research Fellowship, Memorial Sloan Kettering Cancer Center
  • MD, Emory University School of Medicine
  • BS, Duke University

Honors & Awards

  • Huntington Hospital’s Top Performing Doctor
  • Winner of Northwell Health System’s Patient Choice Award
  • Invited Lectures & Presentations

    Breast Cancer: Who Is at Risk and What to Do About It. Mid-Island YJCC. (Long Island, NY, 2022)

    Breast Cancer: Who Is at Risk and What to Do About It. Pharmacal. (Virtual, 2022)

    Updates in Breast Care 2022. Glen Cove Hospital Family Medicine Grand Rounds. (Virtual, 2022)

    Updates in Breast Care 2022. Huntington Hospital OB/GYN Grand Rounds. (Virtual, 2022)

    Breast Cancer: Who Is at Risk and What to Do About It. Friedman Center for Breast and Lymphatic Surgery. (Long Island, NY, 2021)

    Follow-up and Post-Treatment Needs of Breast Cancer Patients. Huntington Hospital Oncology Conference Special Session on Survivorship (Virtual, 2021)

    Breast Cancer: Who Is at Risk and What to Do About It. Midway Jewish Center. (Long Island, NY, 2019)

    Breast Cancer: Who Is at Risk and What to Do About It. Suffolk County Women’s Bar Association. (Long Island, NY, 2019)

    Breast Cancer: Who Is at Risk and What to Do About It. Suffolk County Executive Office of Women’s Services. (Long Island, NY, 2019)

    Breast Cancer: Who Is at Risk and What to Do About It. Plainview Hospital Physician Lecture. (Long Island, NY, 2019)

    Breast Cancer: Who Is at Risk and What to Do About It. Huntington Hospital OB/GYN Grand Rounds. (Long Island, NY, 2019)

    Surgical Treatment: Lumpectomy vs. Mastectomy. Northwell Breast Reconstruction Awareness Event. (Long Island, NY, 2018 and 2019)

    Surgical Treatment: Lumpectomy vs. Mastectomy. National Council of Negro Women & Northwell Pink and Red Event. (Long Island, NY, 2019)

    Breast Cancer: Surgery and Follow-up. Northwell – Everything You Need to Know about Breast Cancer Event. (Long Island, NY, 2019)

    Breast Cancer During Pregnancy. Huntington Hospital OB/GYN Grand Rounds. (Long Island, NY, 2017)

    Compliance with Hormonal Chemoprotection in an Urban Immigrant Population of Breast Cancer Patients. The 4th Annual Academic Surgical Congress. (Fort Myers, FL, 2009)

  • Affiliations

    • Huntington Hospital
    • Plainview Hospital
    • South Shore University Hospital
    • Northwell Health Cancer Institute
    • Katz Institute for Women’s Health
  • Insurance

    Dr. Au accepts a wide range of insurance plans: view the current list of accepted insurance on the Northwell Health website. We also recommend that you contact us directly with any questions regarding your coverage.

  • Locations

    Northwell Health Physician Partners Breast Surgery at Huntington
    270 Pulaski Road, Suite A
    Greenlawn, NY 11740
    Tel (631) 423-1414
    Fax (631) 423-4902

    Northwell Health Physician Partners Medicine Specialties at Woodbury
    415 Crossways Park Drive
    Woodbury, NY 11797
    Tel (631) 423-1414
    Fax (631) 423-4902

Senior Physician Assistant

LeeAnn Tricarico-Floman

Lee Ann has been a physician assistant for over 25 years, since 1994, when she started in general and cardiothoracic surgery at Northwell’s Lenox Hill Hospital. She joined the breast surgery team working with Drs Erna Busch-Devereaux and Joyce Au in 2018, where she sees patients in the Huntington office for surgical and non-surgical management of both benign and malignant breast disease. As a Senior Physician Assistant, Lee Ann brings a wealth of knowledge to the practice and participates in all aspects of patient care, from presurgical through post-op care and beyond. She assists both physicians in their surgical cases, manages genetic testing, and is involved in the breast cancer survivorship program. When not at work, Lee Ann enjoys spending time with her husband, two boys, and two dogs. She loves spending time outdoors, plays tennis, and her newest obsession- pickleball!
Registered Nurse Navigator

Elizabeth Hasher

Elizabeth loves working with her patients. She has been a registered nurse for over 23 years and spent much of her tenure working with female patients in labor and delivery at Huntington Hospital. In her current role, she coordinates care through diagnosis and treatment in hopes to make the breast cancer journey as seamless as possible. She enjoys educating patients while navigating them to community resources and support services to help patients feel empowered every step of the way. In her spare time, she enjoys going to her kid’s sporting events, working in the yard and connecting with friends through her book club!
Surgical Scheduling Supervisor

Dawn Gault

Dawn has been with the Northwell Health system for over 20 years. She brings a smile to the Huntington breast surgery offices of Dr. Erna Busch- Devereaux and Dr. Joyce Au, where she has been dedicated for over 10 years. She enjoys working with patients to book surgeries, schedule appointments, and help follow up with getting authorizations. Dawn takes pride in going above and beyond to improve the patient experience as she would want her family members treated. In her spare time, she enjoys travel, being with family and going to Orange Theory!
Office Manager

Sophia Intzirlis

Sophia brings over 10 years of experience working with breast cancer patients. She serves as an administrator for Dr. Erna Busch-Devereaux and Dr. Joyce Au and strives to make what sometimes can be an overwhelming process for patients as smooth as possible. She follows patients from initial diagnosis to booking surgeries, to follow-up appointments and helps to coordinate care amongst the greater multi-disciplinary breast care team. When not at work, Sophia enjoys long walks and spending time with her granddaughters.