Memorial Sloan Kettering breast pathologist Timothy D’Alfonso

Timothy M. D’Alfonso, MD


Clinical Expertise

Breast Pathology

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Accepted Insurance Providers

Dr. D’Alfonso accepts the following list of insurance providers. Select your insurance provider to see more details.

Contact and Location

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Find a Convenient Location

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offers many services, including screening, chemotherapy, and medical testing.

About Me


MD, Rosalind Franklin University of Medicine and Science/Chicago Medical School


Anatomic Pathology - NewYork-Presbyterian/Weill Cornell Medicine


Breast Pathology - NewYork-Presbyterian/Weill Cornell Medicine

Board Certifications

Anatomic Pathology

I am a surgical pathologist who specializes in breast pathology. My goal is to provide high quality care by making accurate and timely diagnoses for people with breast cancer. I also use my expertise to provide important information that can help them understand the likely course of their disease. My research interests are focused on the clinical, morphologic, and molecular features of breast cancer. I enjoy working in a large academic cancer center with numerous opportunities for teaching and mentoring pathology trainees.


Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.

Clinical Trials

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Find a Clinical Trial for You

Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.

You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.

Research and Publications

Publications on PubMed

Visit PubMed for a full listing of Dr. D’Alfonso’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.