School of Medicine


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  • Lea Steffes

    Lea Steffes

    Instructor, Pediatrics - Pulmonary Medicine

    BioDr. Steffes, a Wisconsin native, completed medical school and pediatric residency at the Medical College of Wisconsin. She then moved to the Bay Area and completed her clinical fellowship in pediatric pulmonary medicine at Stanford University in 2020. Additionally, Dr. Steffes received further post-doctoral training in the laboratories of Dr. Maya Kumar and Dr. David Cornfield, studying the cellular and molecular mechanism driving pulmonary vascular disease. In addition to her role as an Instructor in Pediatrics in the division of Pulmonary Medicine, Dr. Steffes is also completing an advanced clinical fellowship in Pulmonary Hypertension at Lucile Packard Children’s Hospital Stanford. Her clinical work consists of caring for patients with pediatric pulmonary and pulmonary vascular diseases such as pulmonary hypertension, bronchopulmonary dysplasia, interstitial lung disease, respiratory failure, chronic cough and asthma. Her research is focused on the vascular changes seen in pulmonary hypertension, more specifically understanding the cellular characteristics of occlusive neointimal lesions, the abnormal cells that block pulmonary blood flow in pulmonary hypertension. In her most recent work, Dr. Steffes identified a subset of healthy vascular smooth muscle cells that are the cell of origin for the pathologic neointimal cells and a specific signaling pathway, that when blocked, inhibits the formation of neointimal lesions.

    Dr. Steffes is currently employing advanced single cell sequencing technologies to further understand neointimal cells with the ultimate goal identifying new therapies for pulmonary hypertension, a fatal disease with no known cure.

  • Robert Steffner

    Robert Steffner

    Clinical Associate Professor, Orthopaedic Surgery

    BioDr. Steffner specializes in the evaluation, diagnosis, and treatment of bone and soft tissue tumors in pediatric and adult patients. This includes primary bone and soft tissue sarcomas, locally active conditions such as giant cell tumor, aneurysmal bone cyst, and chondroblastoma, as well as impending and pathologic fractures from metastatic carcinoma, multiple myeloma, and lymphoma. He works closely with the multidisciplinary sarcoma group at the Stanford Cancer Center to provide coordinated, highly specialized treatment strategies.

    Research interests include circulating tumor DNA in bone and soft tissue sarcomas, local drug delivery, establishment of a national bone and soft tissue registry, and collaborative clinical studies on imaging and soft tissue management.

  • Henning Stehr

    Henning Stehr

    Clinical Assistant Professor, Pathology

    Current Research and Scholarly InterestsBioinformatics & Clinical Cancer Genomics

  • Harise Stein

    Harise Stein

    Adjunct Clinical Professor, Obstetrics & Gynecology - General

    BioDr. Harise Stein has had multiple clinical, teaching and administrative roles at Stanford in addition to her private practice. In June 2022 she semi-retired, closing her private office and stopped seeing patients in Stanford ob/gyn clinics.

    -- Stanford Physician PRN Support Program, where having served as an initial member of the physician wellness committee, a peer support trainer, author of the peer support manual and program Director for several years, she has now stepped down to a peer supporter. In addition, for 8 years, up until January 2019, she served as the WellMD Newsletter editor, and was the creator and webmaster for the WellMD website. She has been a frequent speaker on topics of burnout and resilience for medical and community groups.

    -- Founder and Co-Chair of Stanford Family Abuse Prevention Council, teaching medical and community members about the health effects, recognition and management of partner and family abuse. She has created Stanford websites for domestic abuse, child abuse, elder abuse and human trafficking, as well as a monthly abuse research summary (see next section). In addition, she served for seven years as a Commissioner on the Santa Clara County Domestic Violence Council and has been a member of the LPCH Suspected Child Abuse and Neglect Committee.

    -- Editor of monthly Abuse Research newsletter (abuseresearch.info), summarizing the most important articles indexed by the NLM each month on the health effects of abuse. This newsletter goes out to a large local, national and international audience of clinicians, researchers, advocates, judiciary/law, government officials and policy makers.

    -- Stanford Integrative Medicine Society, as a founding member and webmaster, and until recently serving as the Director of Stanford Ob/Gyn Preoperative Mind-Body Support program, preparing patients in ob and gyn clinics for upcoming surgery using various techniques including education, mindfulness, relaxation and positive psychology.

    Through her many years of caring for patients and fellow physicians, she has come to believe that the most important root factor in health and well-being is the power of relationships - how family members treat each other, the impact of an optimal patient-physician interaction, the support of medical colleagues by and for each other, and their relationship with their institution.

  • Gary K. Steinberg, MD, PhD

    Gary K. Steinberg, MD, PhD

    Bernard and Ronni Lacroute-William Randolph Hearst Professor of Neurosurgery and Neurosciences and Professor, by courtesy, of Neurology

    Current Research and Scholarly InterestsOur laboratory investigates the pathophysiology and treatment of cerebral ischemia, and methods to restore neurologic function after stroke. Treatment strategies include brain hypothermia, stem cell transplantation and optogenetic stimulation. Our clinical research develops innovative surgical, endovascular and radiosurgical approaches for treating difficult intracranial aneurysms, complex vascular malformations and occlusive disease, including Moyamoya disease, as well as stem cell transplant.