School of Medicine
Showing 3,351-3,400 of 4,928 Results
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Christopher K. Payne, MD
Professor of Urology at the Stanford University Medical Center, Emeritus
Current Research and Scholarly InterestsObstetric Fistula Projects:
1. Preoperative ultrasound evaluation to detect ureteric involvement in vesicovaginal fistulas
2. Patient narrative study to identify key medical, social and economic factors that lead to fistula formation
3. Study of urinary continence after fistula repair
Pelvic pain: investigation into role of pelvic floor in chronic pelvic pain -
Susan Payrovi
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Payrovi is a physician practicing Integrative and Functional Medicine at Stanford’s Center for Integrative Medicine. She earned her bachelor’s degree in Microbiology and Molecular Genetics at UCLA and completed her medical education at UC San Diego in 2003. She completed a residency in Anesthesiology at USC in 2007. Dr. Payrovi is board certified in Anesthesiology, Hospice and Palliative Medicine, as well as Integrative Medicine. She has additional training in Functional Medicine and acupuncture.
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Ronald Pearl
Dr. Richard K. and Erika N. Richards Professor
Current Research and Scholarly InterestsMechanims (molecular and cellular) of pulmonary hypertension, treatment of pulmonary hypertension, treatment of respiratory failure, treatment of septic shock, hemodynamic monitoring
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Francis Pearman
Assistant Professor of Education
BioFrancis A. Pearman is an Assistant Professor of Education in the Graduate School of Education at Stanford University. His research focuses on how poverty and inequality shape the life chances of children, especially in rapidly changing cities. Pearman holds a Ph.D. and M.Ed. from Vanderbilt University and a B.S. from the University of Virginia.
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Donna Peehl, PhD
Professor (Research) of Urology, Emerita
Current Research and Scholarly InterestsMy research focuses on the molecular and cellular biology of the human prostate. Developing realistic experimental models is a major goal, and primary cultures of prostatic epithelial and stromal cells are my main model system. Our discoveries are relevant to prevention, detection, diagnosis and treatment of benign and malignant prostatic diseases.
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Mark Pegram
Susy Yuan-Huey Hung Professor
Current Research and Scholarly InterestsMolecular mechanisms of targeted therapy resistance in breast and other cancers
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Rafael Pelayo, MD
Clinical Professor, Psychiatry and Behavioral Sciences - Sleep Medicine
Current Research and Scholarly InterestsSleep Disorders in Adults and Children
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Norbert Pelc
Boston Scientific Applied Biomedical Engineering Professor and Professor of Radiology, Emeritus
Current Research and Scholarly InterestsBroadly, Dr. Pelc is interested in the physics, engineering and mathematics of medical imaging, especially computed tomography, digital x-ray imaging, magnetic resonance imaging, and hybrid multimodality systems. His current research is concentrated in the development of computed tomography systems with higher image quality and dose efficiency, in the characterization of system performance, and in the development and validation of new clinical applications.
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Gary Peltz
Professor of Anesthesiology, Perioperative and Pain Medicine (Department Research)
Current Research and Scholarly InterestsThe laboratory develops and uses state of the art genomic methods to identify genetic factors affecting disease susceptibility, and to translate these findings into new treatments. We have developed a more efficient method for performing mouse genetic analysis, which has been used to analyze the genetic basis for 16 different biomedical traits. We are developing novel methods, and have developed a novel experimental platform that replaces mouse liver with functioning human liver tissue.
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Daniel Penaranda
Clinical Instructor, Otolaryngology (Head and Neck Surgery)
BioOtolaryngologist from Bogotá, Colombia, with a Master´s degree in Immunology, pursuing a fellowship in Pediatric Otolaryngology.
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Jinghong Penny Peng
Clinical Instructor, Radiation Oncology - Radiation Physics
Current Research and Scholarly Interests1. IMRT Treatment planning
2. IGRT Radiation Therapy
3. Real time prostate implant
4. 4D CT and Respiratory Gating Radiation Therapy
5. HDR for breast cancer and GYN cancer
6. Xoft Electronic Brachytherapy -
Jon-Paul Pepper, MD
Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS)
Current Research and Scholarly InterestsFacial paralysis is a debilitating condition that affects thousands of people. Despite excellent surgical technique, we are currently limited by the regenerative capacity of the body. The mission of our research is to identify new treatments that improve current facial paralysis treatments. We do this by exploring the regenerative cues that the body uses to restore tissue after nerve injury, in particular through pathways of neurogenesis and nerve repair in small mammals.
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Jack Percelay
Clinical Professor, Pediatrics
BioJack Percelay has a 25+ year career in pediatric hospital medicine, beginning before the term hospitalist was invented when he started as an "in-house pediatrician in 1991 at several Bay Area hospitals after a brief career as a civilian primary care pediatrician at local and international US military bases. He has spent the majority of his career in community hospitals where his practice has run the gamut from the general pediatric ward and emergency room, to the PICU and intensive care nurseries, delivery room, and specialized neurologic and neurosurgical units. His work has taken him from San Francisco to New York City with brief stints in Hawaii. In 2015 he moved to Seattle Children's Hospital where he was an Associate Division Chief of Hospital Medicine, and in 2018 returned to the Bay Area joining the Stanford faculty.
He served as the founding chair of the AAP Section on Hospital Medicine, and has also served as the Chair of the AAP Committee on Hospital Care. He served for seven years as the pediatric board member for the Society of Hospital Medicine and has been recognized as a Master of Hospital Medicine by SHM. Additionally, he was an inaugural board member of the American Board of Pediatrics Pediatric Hospital Medicine Subspecialty Board. Areas of interest include pediatric hospital medicine systems of care, patient and family-centered care, BRUEs, billing and coding, and hospitalist roles in the PICU. -
Addie Peretz
Clinical Assistant Professor, Neurology & Neurological Sciences
Clinical Associate Professor, Neurology & Neurological SciencesCurrent Research and Scholarly InterestsDr. Peretz's research interests include understanding the biological underpinnings of migraine and chronic daily headaches. She also participates in clinical trials of new headache treatments.
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Felipe De Jesus Perez
Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine
BioFelipe D. Perez is a Clinical Associate Professor who is board-certified as an Anesthesiologist and as a Pediatric Anesthesiologist. He is the Assistant Dean for Diversity in Medical Student Education in the Office of Diversity in Medical Education (ODME) at Stanford University School of Medicine. His parents emigrated from Mexico and was raised in an immigrant working class neighborhood of Long Beach, CA. After receiving his Bachelors at Stanford he dedicated three years to public health policy where he worked for local, state, and national levels of government. He worked for Congressman Henry Waxman, Assemblymember Hector De La Torre, and Senator Alex Padilla, on laws such as preventing homelessness and having restaurants post caloric information on their menus. He returned to Stanford University for his Medical Degree and stayed for residency, pediatric anesthesiology fellowship, and was hired on as faculty at both the Lucile Packard Children's Hospital and Stanford Hospital. He served as the Chair of the Legislative Affairs Committee for the California Society of Anesthesiologists (CSA) 2021 to 2023. He is involved with leading diversity efforts locally and nationally. He co-chairs his clinical department’s Anesthesiology Diversity Council, he is a steering committee member of Leadership Education in Advancing Diversity (LEAD), he founded CSA's Justice, Equity, Diversity, and Inclusion (JEDI) Committee, and is the communication chair for the national Society for Pediatric Anesthesia (SPA) DEI Committee.
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Marco Perez
Associate Professor of Medicine (Cardiovascular Medicine)
BioDr. Marco Perez's research goal is to better understand the fundamental causes of cardiovascular disease through the study of genetics and epidemiology. His group studies the genetic variations and environmental exposures that are associated with conditions such as atrial fibrillation and heart failure. He has led the studies of atrial fibrillation in Women's Health Initiative, one of the largest nation-wide population-based cohorts. He is currently conducting a large study monitoring for silent or asymptomatic atrial fibrillation in women from the WHI randomized to exercise intervention, and was co-PI of the Apple Heart Study, a clinical trial that validated the ability of a smartwatch to detect atrial fibrillation. He is now PI of the Clinical Coordinating Center at Stanford for the REACT-AF which is a clinical trial to evaluate efficacy and safety of a "pill-in-the pocket" approach to anticoagulation for AF using a smartwatch. He is interested in understanding the paradox that atrial fibrillation is less common in African Americans and Hispanics, despite a greater burden of risk factors such as hypertension. As director of the Stanford Inherited Arrhythmia Clinic, he evaluates families with rare inherited arrhythmias associated with sudden death such as Long QT and Brugada Syndromes and explores their links with novel genes. He also studies the genetic causes of very early onset atrial fibrillation. He also studies how best to use the electrocardiogram and imaging modalities using Machine Learning techniques to identify patients at risk for cardiovascular disease. Dr. Perez receives funding from the NIH/NHLBI, Apple Inc., Janssen and the Colson Foundation.
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Alexander C. Perino
Clinical Assistant Professor, Medicine - Cardiovascular Medicine
BioAlexander C. Perino MD is a cardiac electrophysiologist, clinical informaticist, and cardiovascular researcher. In his clinical role, Dr. Perino treats patients with heart rhythm disorders at Stanford Health Care, performing catheter ablations and cardiac device implantations. In addition to complex ablation (e.g., atrial fibrillation and ventricular tachycardia ablation), Dr. Perino has expertise implanting leadless pacemakers, subcutaneous ICDs, and conduction system pacing leads (i.e., His bundle and left bundle branch area pacing leads). Dr. Perino is the medical informatics director for the Division of Cardiovascular Medicine at Stanford Health Care, providing informatics direction to improve 1) the quality and safety of cardiovascular care delivery and 2) patient and clinician experience derived from the electronic health record and related information and communication technologies. As a cardiovascular researcher, Dr. Perino uses large datasets to examine quality of care, outcomes, and risk prediction for heart rhythm disorders and cardiovascular disease.
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VJ Periyakoil, Professor of Medicine
Professor of Medicine (Primary Care and Population Health)
Current Research and Scholarly InterestsMy lab is focused on longevity and healthy aging, multi-cultural palliative care and geriatrics research.
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Inder Perkash
Paralyzed Veterans of America Professor of Spinal Cord Injury Medicine, Emeritus
Current Research and Scholarly InterestsMy major interest has been neurogenic bladder and neurogenic bowel. In other areas where I have published research include urinary tract infections , use of Laser to vaporize urethral strictures in able bodies and surgery to improve voiding in spinal cord injury patients.
Currently I am helping set up to evaluate and rehab. neurogenic bowel problems in GI Medicine at Stanford. -
Mark Perlroth, MD
Member, Cardiovascular Institute
Current Research and Scholarly Interests1. Adult Congenital Heart Disease
2. Cardiac Transplantation
3. General Cardiology
4. Porphyrias -
Kenneth Perrone
Instructor, Surgery - General Surgery
BioKenneth Perrone is a fellowship trained colon and rectal surgeon. His clinical practice covers a wide range of problems related to the colon, rectum, and anus. In addition to his clinical practice, conducts research in Technology Enabled Clinical Improvement center focused on quantifying physician performance using sensors.
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Suzann Pershing, MD
Professor of Ophthalmology
BioDr. Pershing is on the ophthalmology faculty at Stanford University School of Medicine, with an academic career blending clinical practice, teaching, research, and administration. She serves as Chief of Ophthalmology and Eye Care Services for the VA Palo Alto Health Care System and as Vice Chair for Education in the Stanford Department of Ophthalmology, after five years as Program Director for the ophthalmology residency.
As an educator she seeks to bring a "precision" approach to graduate medical education, incorporating innovation and research rigor. She is committed to program diversity and inclusion and excited to innovate and implement novel approaches to ophthalmology education. Specific areas of interest include competency-based education, career pathways and career development, and leadership development, with programmatic initiatives such as Stanford Ophthalmology's 4-year research track residency program (SOAR), opportunities for resident elective scholarly activity, and efforts to develop a valuable internship program for incoming ophthalmology residents at Stanford. Dr. Pershing's active research includes efforts to enhance diversity in residency selection, using AI semi-supervised models to augment the application review process, and predictive modeling to optimize cataract surgery case selection and scheduling.
Her broader research interests focus on utilization of big data, biomedical informatics techniques, and evidence-based medicine to study clinical associations and outcomes, health care utilization, disease progression, and cost-effectiveness of ophthalmic treatment, as well as a special interest in the relationship between visual impairment and cognitive impairment. Dr. Pershing is active in big data initiatives and analysis, including collaborative projects at Stanford and serving as site PI for the American Academy of Ophthalmology (AAO) IRIS Registry analytic group at Stanford. She also serves on the American Board of Medical Specialties Database and Information Technology Advisory Committee (DITAC), the AAO Medical Information Technology Committee, and AAO Committee on Aging. Through this and her other work, she is engaged in efforts to use diverse data sources to facilitate improved quality of care, continuing certification, and practice and outcomes assessments. Dr. Pershing is also involved in health policy, including helping to develop CMS episode-based cost measures for MIPS, and she is interested in health care innovation—technology, quality, and delivery systems.
Dr. Pershing also serves as faculty advisor for the Alpha Omega Alpha medical honor society Stanford association, with focus on resident initiatives, and mentors both medical students and undergraduate students. -
Petra Persson
Assistant Professor of Economics and, by courtesy, of Health Policy
BioPetra Persson is an Assistant Professor of Economics at Stanford’s Department of Economics, where she teaches in the PhD program. She is also a Faculty Research Fellow at the National Bureau of Economic Research, a Faculty Fellow at the Stanford Institute for Economic Policy Research and at the Stanford Center for International Development, and a Research Affiliate at the Centre for Economic Policy Research. Her research agenda centers on social insurance and family structure, and explores the interaction between government-provided insurance and intra-family insurance.
Petra Persson was a Postdoctoral Fellow at the Stanford Institute for Economic Policy Research from 2013 to 2014, and a Predoctoral Fellow at the Harvard Kennedy School Women and Public Policy Program from 2012 to 2013. She earned her PhD in Economics from Columbia University in 2013, her MSc in Economics from Stockholm School of Economics in 2006, and her BA in Political Science and Mathematics from Stockholm University in 2005. -
Jeffrey Petersen
Professor of Medicine (Nephrology) at the Stanford University Medical Center, Emeritus
Current Research and Scholarly InterestsHigh flux dialysis in in-vivo and in-vitro clearances, of small and middle molecular weight solutes; computerized capture, of interdialysis hemodynamics; biocompatibility of biomembranes;, dialysis-related amyloidosis
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Claudia Katharina Petritsch
Associate Professor (Research) of Neurosurgery
On Partial Leave from 12/24/2024 To 10/31/2025Current Research and Scholarly InterestsThe Petritsch lab broadly investigates underlying causes for the intra-tumoral heterogeneity and immune suppression in brain tumors from a neuro-developmental perspective. Defective cell fate decisions fuel the intra-humoral heterogeneity and plasticity in human brain tumors and may contribute to immune suppression. We use patient-derived models as avatars to study how brain cells control the fate of their progeny, whereby we unravel novel points of vulnerabilities in brain tumor cells.
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Ed Petrossian
Clinical Professor, Cardiothoracic Surgery
Current Research and Scholarly InterestsDr. Petrossian has expertise in complex pediatric and congenital cardiovascular surgical repairs. He has published several journal articles and book chapters with an emphasis on the extracardiac conduit Fontan operation.
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Dmitri Petrov
Michelle and Kevin Douglas Professor in the School of Humanities and Sciences
Current Research and Scholarly InterestsEvolution of genomes and population genomics of adaptation and variation
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Michael Adam Pfeffer
Chief Information Officer, Stanford Health Care and Stanford School of Medicine, Associate Dean, Stanford School of Medicine, and Clinical Professor, Medicine
Clinical Professor, MedicineBioMichael A. Pfeffer, MD, FACP serves as Chief Information Officer and Associate Dean for Stanford Health Care and Stanford University School of Medicine. Michael oversees Technology and Digital Solutions (TDS), responsible for providing world class technology solutions to Stanford Health Care and School of Medicine, enabling new opportunities for groundbreaking research, teaching, and compassionate care across two hospitals and over 150 clinics. TDS supports Stanford Medicine’s mission to improve human health through discovery and care and strategic priorities to be value focused, digitally driven, and uniquely Stanford.
Michael is a Clinical Professor in the Department of Medicine and Division of Hospital Medicine with a joint appointment in the center for Biomedical Research (BMIR) in Stanford University School of Medicine. As such, Michael continues to provide clinical care as a Hospitalist Physician as well as teaching medical students and residents on the medicine inpatient wards.
Prior to joining Stanford Medicine, Michael served as the Assistant Vice Chancellor and Chief Information Officer for UCLA Health Sciences. During his tenure, Michael served as the lead physician for the largest electronic health record “big bang” go-live of its time, encompassing over 26,000 users. Michael subsequently became the first Chief Medical Informatics Officer for UCLA Health before transitioning into the Chief Information Officer position. Under his leadership, UCLA Health IT achieved numerous industry awards including the HIMSS Analytics Stage 7 Inpatient, Ambulatory, and Analytics Certifications; the Most Wired designation for eight consecutive years; US News & World Report’s Most Connected Hospitals; the Top Master’s in Healthcare Administration 30 Most Technologically Advanced Hospitals in the World; and the prestigious HIMSS Davies Award. Michael also implemented of one of the first ACGME-accredited Clinical Informatics Fellowship Programs and served as its Associate Program Director.
Michael has lectured worldwide on health information technology; served on the national HIMSS Physician Committee and as a HIMSS Stage 7 international site surveyor; and has published numerous peer-reviewed articles on health IT. Michael was featured in Becker’s Hospital Review as 10 physician CIOs to know and 12 standout healthcare CIOs and was one of LA’s top doctors in Los Angeles Magazine. -
Suzanne Pfeffer
Emma Pfeiffer Merner Professor of Medical Sciences
Current Research and Scholarly InterestsThe major focus of our research is to understand the molecular basis of inherited Parkinson's Disease (PD). We focus on the LRRK2 kinase that is inappropriately activated in PD and how it phosphorylates Rab GTPases, blocking the formation of primary cilia in specific regions of the brain. The absence of primary cilia renders cells unable to carry out Hedgehog signaling that is critical for neuroprotective pathways that sustain dopamine neurons.
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Adolf Pfefferbaum
Professor of Psychiatry and Behavioral Sciences, Emeritus
Current Research and Scholarly InterestsDevelopment and application of magnetic resonance imaging approaches for in vivo studies of human and animal brain integrity in neurodegenerative conditions, including alcoholism, HIV infection, Alzheimer's disease, and normal aging
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Anuradha Phadke
Clinical Associate Professor, Medicine - Primary Care and Population Health
BioDr. Phadke is a board-certified primary care internal medicine physician and Clinical Associate Professor of Primary Care & Population Health at the Stanford School of Medicine. She holds several administrative roles including Associate Physician Improvement Leader for the Stanford Department of Medicine, Associate Chief Quality Officer for Ambulatory Care and Population Health at Stanford Healthcare, and co-chair of the Quality Improvement Subcommittee for the Society for General Internal Medicine.
In her clinical care, she enjoys forming deep and lasting relationships with patients. She seeks to listen actively and provide patients with guidance and support as they work toward their health goals. Her clinical expertise is in chronic disease management and preventive care.
She teaches clinical primary care to internal medicine residents and medical students. She actively mentors student and resident quality improvement projects.
Her scholarly focus is ambulatory quality improvement evaluation. She has published and presented on a wide array of topics including workforce QI engagement, quality improvement evaluation of primary care improvement initiatives, hypertension management, and quality improvement to narrow health disparities. She enjoys working with trainees and students on scholarship. -
Edward A. Pham
Instructor, Medicine - Gastroenterology & Hepatology
BioMy interest in medicine and research was triggered by my mother’s battle with chronic hepatitis C, which made me realize the transformational power of biomedical research in treating patients. Therefore, my career goal is to become a physician scientist in the field of gastroenterology and hepatology dedicated to translating discoveries in the laboratory into novel medical treatment modalities. My research focus is alterations in phosphoinositides signaling and its pathogenesis in cancers of the hepatobiliary and luminal GI tract with the goal to identify novel targets for therapeutic intervention. I also have a particular interest in understanding the interface between chronic viral infection and cancer through studying how the innate and adaptive immune system are perturbed in chronic viral infections
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Tho Duc Pham
Clinical Associate Professor, Pathology
Current Research and Scholarly InterestsMy areas of interest involve exploring antibody function as it relates to transfusion medicine, blood safety, and emerging infectious diseases. This ranges from natural immune responses to the ABO blood group, antibody profiling anti-SARS-CoV-2 antibodies, and studying HEV seroprevalence in the local community. I am also interested in exploring statistical approaches to improve blood product availability and overall health care efficiency in a tertiary care system.
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Trung Hoang Minh Pham
Assistant Professor of Pediatrics (Infectious Diseases) and of Microbiology and Immunology
Current Research and Scholarly InterestsUncovering mechanisms of tissue immunity and immunophysiology during persistent infection
The immune system safeguards the health of complex organisms by rapidly eliminating invading pathogens, curbing infection-induced tissue disruptions, and maintaining tissue homeostasis. Many bacterial pathogens evade host antimicrobial mechanisms and persist in infected tissues at low levels for long periods of time even in the presence of innate and adaptive immune resistance. During persistent infection, the immune system simultaneously orchestrates antimicrobial responses to contain the pathogen, repairs damaged tissue, regulates nutrient resources, and maintains other tissue physiological functions to ensure host survival. Failure of any of these tasks leads to uncontrolled infection, devastating disease, and even death. The goals of our research are to understand:
1)What are the innate and adaptive immune cellular mechanisms that contain pathogens during persistent infection?
2)How are tissue physiological functions, such as tissue repair and nutrient regulation, maintained during persistent infection?
3)How do pathogens survive innate and adaptive antimicrobial mechanisms in infected tissues?
4)How does persistent infection impact host immunity to secondary infections of a similar or different pathogen?
Through investigating these fundamental questions, we may be able to decode the underlying cellular and molecular mechanisms that can be harnessed to eradicate infections, promote tissue resilience, and restore health after an infectious insult. We employ animal infection models and bring together immunology, tissue biology, microbiology, and genetics to uncover the mechanisms of tissue immunity and immunophysiology during persistent infection from the molecular to organismal level.
Current areas of research:
•Development, maintenance, and plasticity of macrophage functional diversity in infected tissue
•Tissue repair and nutrient regulation during persistent infection
•Cellular dynamics and bacterial persistence in lymphoid organs
