Faculty

Director of Pre-Clerkship Education

Nicole Burwell, PhD, PA-C

Dr. Burwell is a Clinical Associate Professor in the Department of Medicine, Division of Primary Care. She currently serves as the Director of Pre-Clerkship Education for the Stanford School of Medicine, Master of Science in PA Studies program. Dr. Burwell previously served as a member of the PA program leadership team at George Washington University for more than 8 years. Dr. Burwell is a seasoned clinical PA with almost twenty years of experience in Internal Medicine and Occupational Health. She completed her PA training at George Washington University where she earned a MSHS.  She also holds a Ph.D. from Howard University School of Pharmacy and Allied Health. Her research interests include Health Disparities and Nutritional Sciences with a focus on the pivotal role it plays in cardiovascular disease. 

Director of Clerkship Education

Kendra Patton Silverman, MS, PA-C

Ms. Patton Silverman is a Clinical Assistant Professor in the Department of Medicine, Division of Primary Care. She is the Director of Clerkship Education at the Stanford Master of Science in PA Studies program. Professor Patton Silverman is a graduate of the Rosalind Franklin University of Medicine and Science, class of 2013, and holds a Master of Science degree. Her clinical experience includes internal medicine, family medicine, women’s health, emergency medicine, and urgent care. Professor Patton Silverman is passionate about diversity initiatives, and co-chairs the diversity, equity and inclusion committee of the MSPA program, called BE HEARD (Belonging, Empathy, Health Equity, Anti-Racism, and Diversity). When not working with the MSPA program, she works at several outpatient primary care clinics within the Stanford Health Care community.

Director of Student Scholarship

Michele Toussaint, MS, PA-C

Ms. Toussaint is a Clinical Assistant Professor in the Department of Medicine, Division of Primary Care.  She  completed her PA education in NY, followed by a Master of Science degree from A.T. Sill University and is currently finishing up a Doctorate of Education, with a focus on Educational Technology at Boise State University. She has been a practicing PA for 18 years and has over 7 years of PA education experience.  Her clinical experience includes cardiac surgery, cardiac intensive care and orthopedic surgery. When not working with the PA program she works in the cardiac intensive care unit at Lucile Packard Children's Hospital caring for the most complex of patients with congenital heart disease that range in age from newborns to older adults.  

Lead Educator for Care- PA

Courtney Nelson, MMS, PA-C

Ms. Nelson is a Clinical Assistant Professor in the Department of Medicine, Division of Primary Care. She completed her PA education in the Stanford/Foothill College Primary Care Associate Program and received a Master's of Medical Science Degree from St. Francis University. She has been practicing clinically and working in PA education for 4 years. Her clinical experience includes cardiac intensive care, trauma and acute care surgery, and urgent care medicine. When not working with the MSPA program she works in the adult cardiac intensive care unit at Stanford Hospital.

Clinical Site Director- Central Valley

Sampath Wijesinghe, DHSc, AAHIVS, PA-C

Dr. Wijesinghe is a Principal Faculty member and Clinical Site Director for the Central Valley California region. He completed his PA education at Union College where he received a Master's in PA Studies. He also has a Master's in Management Information Systems from the University of Nebraska, and a Doctor of Health Science degree with an emphasis in Global Health from A.T. Still University. Dr. Wijesinghe completed an HIV and AIDS Clinical Fellowship at UCSF Fresno; he has been a HIV/AIDS specialist 6 years and has worked in primary care medicine for over ten years, primarily in under-served communities. He has been involved in medical education for 7 years. His clinical interests include primary care medicine, HIV medicine, and global health.

Clinical Site Director- Imperial Valley

Ashley Castelhano, MMS, PA-C

Ms. Castelhano is a Clinical Assistant Professor in the Department of Medicine, Division of Primary Care, and is the Clinical Site Director for the Imperial County region. She completed her PA education in the Stanford/Foothill College Primary Care Associate Program and received a Master of Medical Science Degree from St. Francis University.  She has worked in emergency medicine in rural settings since 2013.

Clinical Site Director- VA Healthcare System

Kimberly Hwa, MMS, PA-C

Ms. Hwa is a Clinical Instructor (affiliate) in the Department of Medicine, Division of Primary Care, and is the Clinical Site Director for the VA Healthcare System. She completed her PA education in the Stanford/Foothill College Primary Care Associate Program and received a Master of Medical Science degree from St. Francis University.  She has worked in general surgery in the VA Healthcare System since 2011.