About Us > A. Jo Chien, MD

A. Jo Chien, MD

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Highlights

  • Assistant clinical professor of medicine at the Helen Diller Family Comprehensive Cancer Center
  • Recipient of American Society of Clinical Oncology’s (ASCO) Young Investigator Award
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A. Jo Chien, MD, is an assistant clinical professor of medicine at the Helen Diller Family Comprehensive Cancer Center at the University of San Francisco. She focuses her practice on the treatment of breast cancer, especially those that are HER2-positive.

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Dr. Chien’s research interests emphasize HER2-positive disease, breast cancer in young women, and cancer treatment and fertility. She has been recognized with many awards, including the American Society of Clinical Oncology’s (ASCO) Young Investigator Award, Foundation Merit Award, and Postdoctoral Fellowship. Dr. Chien is a member of ASCO and the American Association of Cancer Research.

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Contributions

MammaPrint test results may help decide treatment

01/19/17 | BY: Eric Fitzsimmons

MammaPrint, a test that looks at 70 genes in a breast cancer tumor, may be used to help some women with early-stage disease avoid chemotherapy.

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 | 8 Min. Read

Genetic test results and what they mean

08/31/15 | BY: Mark Robson, A. Jo Chien

Test results indicate whether you carry a gene mutation (positive), no mutation detected (negative), or a variant of uncertain significance—a gene change with unclear cancer risk implications.

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 | 6 Min. Read |