School of Medicine
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Anna Chen Arroyo, MD MPH
Clinical Associate Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine
BioAnna Chen Arroyo, MD, MPH, is a board-certified allergy/immunology physician and clinical researcher. She is the section chief of Allergy, Asthma, and Immunodeficiency in the Division of Pulmonary, Allergy and Critical Care Medicine and the medical director of the Allergy, Asthma, and Immunodeficiency Clinic at Stanford Health Care. She specializes in diagnosing and treating allergic conditions, with a focus on severe asthma, maternal asthma, and drug (including chemotherapy) allergies.
Dr. Arroyo’s clinical research focuses on early life risk factors for allergic disease development and how allergic diseases impact people across the lifespan. She is also interested in studying how allergic diseases affect the Asian American population and hormonal influences on allergic diseases. She has published her original research in peer-reviewed scientific 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 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. -
Umang Barvalia
Clinical Associate Professor (Affiliated), Medicine - Med/Pulmonary, Allergy & Critical Care Medicine
BioUmang Barvalia earned his M.B,B.S degree from Medical College, Baroda in Vadodara, India. He completed his internal medicine residency at Marshfield Clinic- St. Joseph’s Hospital, Marshfield, WI where he also served as a chief resident. He was a chief fellow during his Pulmonary and Critical Care Medicine fellowship at University of Wisconsin, Madison, WI. He is currently working as a Board Certified Internal Medicine, Pulmonary and Critical Care Medicine Physician at the Santa Clara Valley Medical Center (SCVMC), San Jose. – a county hospital that serves as a teaching site for Stanford residents and fellows. He holds an appointment of Clinical Associate Professor (affiliated) at Stanford University School of Medicine due to his involvement in training of pulmonary and critical medicine fellows.
His professional interests include point-of-care ultrasound (POCUS) and medical education. He is certified in Critical Care Echocardiography by the National Board of Echocardiography (NBE) and teaches residents and fellows POCUS in the ICU and on the pulmonary consult service.
As a lung specialist, he cares for patients with chronic lung conditions like asthma, pulmonary hypertension, COPD, Interstitial lung disease, diseases involving the pleura and lung cancer. He also established the Endobronchial Ultrasound Program at SCMVC that helps in the diagnosis and care of lung cancer patients.
As a full time faculty in the intensive care unit, he treats patients with a variety of conditions including sepsis, liver failure, respiratory failure, post cardiac arrest and stroke. Along with his peers, he introduced prone position ventilation at SCVMC that helps in management of patients with ARDS. -
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
Clinical Assistant Professor, Medicine - Pulmonary, Allergy & Critical Care Medicine
Current Research and Scholarly InterestsExercise hemodynamics and cardiopulmonary exercise testing
