School of Medicine


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  • Solmaz Ehteshami Afshar, MD

    Solmaz Ehteshami Afshar, MD

    Clinical Assistant Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine

    BioDr. Ehteshami Afshar is a board-certified, fellowship-trained pulmonologist with Stanford Health Care. She is also a clinical assistant professor in the Department of Medicine, Division of Pulmonary, Allergy & Critical Care Medicine at Stanford University School of Medicine. She earned her MSc from the University of British Columbia, specializing in health economics, before completing her residency in internal medicine at Yale New Haven Hospital. She furthered her training at Stanford University, pursuing fellowships in pulmonary and critical care medicine as well as sleep medicine.

    Dr. Ehteshami Afshar’s clinical expertise lies in the management of complex pulmonary conditions and sleep-related respiratory disorders, with a particular focus on patients with neuromuscular diseases. She diagnoses and treats acute and chronic respiratory failure requiring noninvasive home mechanical ventilation, sleep-related respiratory disorders including sleep apnea, and airway disease including asthma and chronic obstructive pulmonary disease (COPD). She also provides care for critically ill patients in the intensive care units (ICU).

    Dr. Ehteshami Afshar’s current research interests include improving the respiratory status of patients with amyotrophic lateral sclerosis (ALS) as well as identifying novel treatment options for patients with tracheobronchomalacia. She has previously worked on research studies on COPD care, asthma interventions, and patient education around asthma.

    Dr. Ehteshami Afshar has published her research in many peer-reviewed journals, including the American Journal of Respiratory and Critical Care Medicine, Respiratory Research, and Cleveland Clinic Journal of Medicine. She has presented to her peers at international, national, and regional meetings, including the American College of Chest Physicians Annual Meeting, the American Thoracic Society International Conference, and the California Thoracic Society Annual Educational Conference.

  • Anna Chen Arroyo

    Anna Chen Arroyo

    Clinical Associate Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine

    BioDr. Anna Chen Arroyo is a board-certified allergist and asthma physician and the medical director of the Allergy, Asthma, and Immunodeficiency Clinic at Stanford Health Care. She is also a clinical associate professor and section chief of Allergy, Asthma, and Immunodeficiency in the Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine at Stanford University School of Medicine.

    Dr. Arroyo specializes in diagnosing and treating allergic conditions, with a focus on severe asthma, maternal asthma, and drug (medication) allergies. She provides many types of treatment for managing allergic conditions, such as allergen immunotherapy, biologic therapy, and drug desensitization.

    Dr. Arroyo’s research focuses on early life risk factors for allergic disease development, such as asthma, and how allergic diseases impact people across the lifespan. She is also interested in studying how allergic diseases affect the Asian American population.

    Dr. Arroyo has published her research in peer-reviewed journals, such as The Journal of Allergy and Clinical Immunology: In Practice and The Journal of the American Medical Association (JAMA). She has also presented to her peers at national conferences, including annual meetings for the American Thoracic Society and the American Academy of Asthma, Allergy, and Immunology.

    Dr. Arroyo is a member of the American Academy of Asthma, Allergy, and Immunology, the American Thoracic Society, and the American College of Allergy, Asthma, and Immunology.

  • Harmeet Bedi

    Harmeet Bedi

    Clinical Associate Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine

    BioDr. Harmeet Bedi is the Director of Interventional Pulmonology & Bronchoscopy at Stanford University. His expertise is in minimally invasive techniques used in the diagnosis and treatment of various airway and lung diseases such as lung cancer, benign & malignant airway obstruction, and pleural diseases. He specializes in rigid & flexible bronchoscopy, robotic bronchoscopy, airway stent placement, balloon bronchoplasty, endobronchial ultrasound (EBUS), and various pleural procedures. He also specializes in a variety of tumor ablative therapies including laser therapy, electrocautery, argon plasma coagulation (APC), brachytherapy, and cryotherapy.

    He founded the cone-beam computed tomography (CBCT) - guided bronchoscopy program at Stanford in 2019. CBCT-guided bronchoscopy is a novel and cutting-edge technique which combines bronchoscopy with CT imaging, allowing for improved localization and diagnosis of peripheral lung nodules. Additionally, CBCT-guided bronchoscopy will allow for numerous potential cancer therapies that are currently under development.

    Dr. Bedi is a principal investigator and co-investigator on multiple clinical trials related to bronchoscopy, thoracic imaging, pulmonary nodules, and lung cancer. Specifically, he has multiple research interests within the realm of bronchoscopic device innovation and CBCT-guided bronchoscopy.

  • Roberto J. Bernardo MD, MS, ATSF

    Roberto J. Bernardo MD, MS, ATSF

    Clinical Assistant Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine

    Current Research and Scholarly InterestsExercise hemodynamics and cardiopulmonary exercise testing

  • Michelle Thi Cao, MD

    Michelle Thi Cao, MD

    Clinical Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine

    Current Research and Scholarly InterestsPositive Airway Pressure devices for central sleep apnea