Stanford University


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  • Julia J. Chang, MD

    Julia J. Chang, MD

    Clinical Assistant Professor, Medicine - Endocrinology, Gerontology, & Metabolism
    Clinical Assistant Professor (By courtesy), Neurosurgery

    BioDr. Chang is a board-certified endocrinologist and internal medicine doctor. She is a Clinical Assistant Professor in Stanford Medicine’s Division of Endocrinology, Gerontology, and Metabolism. She specializes in transgender health, pituitary disorders, diabetes, and general endocrine disorders.

    She provides patient care at the Stanford Health Care Endocrinology Clinic and the Stanford Health Care LGBTQ+ Health Program. For each patient, she develops a comprehensive, compassionate care plan personalized to individual needs. Her goal is always the best possible health and quality of life for every patient in her care.

    Dr. Chang leads quality improvement and education initiatives within the endocrinology and pituitary team. She teaches medical students, residents, and fellows and serves as the associate program director for the Stanford endocrinology fellowship.

    Dr. Chang has conducted extensive research and has published peer-reviewed articles on obesity, weight loss, and transgender health in the journals Endocrine Practice, Family Medicine, and Cleveland Clinic Journal of Medicine. She has presented the findings of her research at national meetings of the Endocrine Society and United States Professional Association of Transgender Health.

    She is a member of the Endocrine Society, American Association of Clinical Endocrinology, Pituitary Society, and the World Professional Association of Transgender Health.

    As a volunteer, Dr. Chang has guided medical students providing health care to uninsured residents of the Bay Area.

    When not providing clinical care, teaching, or conducting research, Dr. Chang enjoys time with her family, violin, golf, figure skating, and travel.

    She is a native English speaker and also understands Korean.

  • Julie Chen

    Julie Chen

    Clinical Assistant Professor, Medicine - Endocrinology, Gerontology, & Metabolism

    BioJulie Chen, MD, is a board-certified endocrinologist and clinical assistant professor in the division of endocrinology at Stanford University. Dr. Chen diagnoses and treats a wide range of conditions with a focus on endocrine tumors that affect the thyroid, parathyroid, adrenal, and pituitary glands. She also works closely with cancer specialists to treat the endocrine side effects associated with immunotherapy. Dr. Chen recognizes that patients are more than their disease. She views her relationship with each patient as a partnership and develops a personalized care plan for each one. Dr. Chen is committed to helping patients achieve the best possible outcomes through comprehensive treatment.

    Dr. Chen is also passionate about medical education and mentoring. She currently serves as the Program Director for the Endocrinology Fellowship Program at Stanford University. She has given numerous lectures to medical students, residents, and fellows.

  • Katrin Chua

    Katrin Chua

    Professor of Medicine (Endocrinology, Gerontology and Metabolism)
    On Leave from 10/01/2023 To 07/31/2024

    Current Research and Scholarly InterestsOur lab is interested in understanding molecular processes that underlie aging and age-associated pathologies in mammals. We focus on a family of genes, the SIRTs, which regulate stress resistance and lifespan in lower organisms such as yeast, worms, and flies. In mammals, we recently uncovered a number of ways in which SIRT factors may contribute to cellular and organismal aging by regulating resistance to various forms of stress. We have now begun to characterize the molecular mechanisms by which these SIRT factors function. In particular, we are interested in how SIRT factors regulate chromatin, the molecular structure in which the DNA of mammalian genomes is packaged, and how such functions may link genome maintenance to stress resistance and aging.

  • Colleen Craig

    Colleen Craig

    Casual Employee, Medicine - Med/Endocrinology

    BioDr. Craig’s research interests center on examining the roles of incretin gut hormones on glucose metabolism and weight, and on the development and application of incretin-based therapies for treatment of related conditions. In particular, Dr. Craig's clinical research has focused on elucidating the role of GLP-1 in mediating hyperinsulinemic hypoglycemia conditions, including post-bariatric hypoglycemia (PBH) and congenital hyperinsulinism (HI), and on the role of GLP-1 in influencing feeding behaviors. Dr. Craig obtained her M.D. at Brown University School of Medicine and completed her postdoctoral research fellowship at Stanford University School of Medicine.

  • Lawrence Crapo

    Lawrence Crapo

    Professor of Medicine (Endocrinology, Gerontology and Metabolism) at the Santa Clara Valley Medical Center, Emeritus

    Current Research and Scholarly InterestsInvestigation of the epidemiology of diabetic ketoacidosis (DKA) at a public hospital. All cases of DKA at SCVMC occurring over the past 5 years have been identified. Of the 480 cases of DKA, about 1/3 are in Type II diabetics, and 2/3 in Type I diabetics. We are exploring the causes of DKA in the two groups.