Program Leadership

Ronald Witteles, MD

Program Director

Dr. Witteles (Program Director) graduated from The University of Chicago Pritzker School of Medicine, and he completed his Internal Medicine residency training, chief residency, and Cardiology fellowship training at Stanford. He is an active member of the Heart Failure faculty, and frequently attends in the CCU. He serves as Co-Director of the Stanford Amyloid Center and runs an active clinical More research program in amyloidosis, cardiac complications of cancer therapy, and sarcoidosis. Dr. Witteles is the recipient of a host of clinical teaching awards, and housestaff education is his greatest passion.


Wendy Cáceres, MD

Associate Program Director

Dr. Cáceres (Associate Program Director) earned her medical degree and completed her Internal Medicine residency training at Stanford University School of Medicine. She is the Co-Medical Director of the Pacific Free Clinic in San Jose, CA. Her scholarly work focuses on medical education with a focus on primary care, as well as cultural competency, and unconscious bias in medicine. More Dr. Cáceres is passionate about increasing diversity in medicine as she believes academic medicine is vital to the future of healthcare, and should be both diverse and inclusive.


Poonam Hosamani, MD

Associate Program Director

Dr. Hosamani (Associate Program Director) graduated from Northwestern Medical School and completed her Internal Medicine residency training at the Weill-Cornell Medical Center. She joined the Division of Hospital Medicine at Stanford in 2012 and attends on the Stanford general medicine wards. Dr. Hosamani is passionate about medical education and is the course director for the first-year Practice of Medicine course for Stanford School of Medicine students. More She also co-directs the Transition to Clerkships course and is an associate clerkship director for the Internal Medicine core clerkship. Her scholarly work focuses on bedside medicine through the Bedside Medicine group founded by Dr. Verghese.


Andrea Jonas, MD

Associate Program Director

Dr. Andrea Jonas (Associate Program Director) is a Clinical Assistant Professor in the Division of Pulmonary, Allergy, and Critical Care Medicine at Stanford University. She completed her undergraduate studies in chemistry and physics at Harvard University. She received her MD from Johns Hopkins University, where she stayed on to complete residency training in internal medicine on the Osler Medical Service. More She pursued fellowship training in pulmonary and critical care medicine at Stanford University, where she additionally completed a research fellowship in health care innovation and systems design as part of the Clinical Excellence Research Center. Since completing fellowship she has stayed on at Stanford as a clinician educator and serves as the associate program director for the PCCM fellowship and the IM residency programs. Her research interests include integrating technological innovations into healthcare system practices to improve delivery of pulmonary and ICU services. In her free time she enjoys gardening, watching the Great British Baking Show, and taking her dog on hikes in the Bay Area!


Kevin Keet, MD

Associate Program Director

Dr. Keet graduated from The University of Vermont, College of Medicine and completed his residency at UCSF. He has worked with Stanford residents since starting as a hospitalist at the Palo Alto Veterans Hospital in 2010 and recently joined the program leadership. Dr Keet attends on the general medicine wards at both Stanford and the VA. He is a passionate and award winning medical educator with a focus on clinical decision making, resident wellness, and bedside medicine. More He believes that you should sit down with every patient, every time, and that each clinical decision should be contemplated in the context of the values and goals of person in front of you. Outside the hospital he likes to surf or bike with his two daughters and play with his goofy basset hound mixes.


Teja Patil, MD, MPH

Associate Program Director - VA

Dr. Patil graduated from the University of California, San Francisco where she completed her MD and her residency in Internal Medicine. She joined the VA Palo Alto as a hospital medicine attending in 2015 where she attends on the wards and particularly loves nighttime medicine. She has served as the VA Palo Alto Nocturnist Director, Director of Surgical Comanagement and serves on the CPR committee More She particularly loves working alongside the medicine residents at night when the whole team admits new, undifferentiated cases and stabilizes nighttime emergencies. Dr. Patil’s particular passion is physician wellness; she co-teaches the resiliency curriculum for the Stanford IM residency. She is also a certified Physician Development Coach using coaching as a modality to support growth, wellness and excellence in clinicians across their career span.


Angela Rogers, MD, MPH

Associate Program Director

Dr. Rogers (Associate Program Director) graduated from Harvard Medical School, and completed her internal medicine residency at the Brigham and Women’s Hospital and Pulmonary and Critical Care fellowship in the Harvard program.  She moved to Stanford as an Assistant Professor in 2013.  She is focused on critical care education for both residents and fellows, and works on the More Medicine side of the Stanford Medicine-Anesthesia combined residency program.  Her research focus is on using genomics to identify novel biomarkers and improve phenotyping in sepsis and ARDS.


Cybele Renault, MD, DTM&H

Program Lead in Global Health

Dr. Renault (Program Lead in Global Health) completed medical school and her Internal Medicine residency at The University of Chicago Pritzker School of Medicine, and after spending a year as Chief Resident at Cook County Hospital in Chicago, she came to Stanford for her Infectious Diseases fellowship. Dr. Renault has a particular interest in working with underserved populations with a focus More  on tropical disease and global health, where she has experience practicing medicine and teaching in Nepal, India, Thailand, Burkina Faso, Uganda and Zimbabwe. At Stanford, she is the primary attending physician on the inpatient Infectious Diseases consult service at the Palo Alto VA and is intimately involved with the Stanford Center for Innovation in Global Health (CIGH). Dr. Renault is Site Director for the  Johnson & Johnson rotation at Mulago Hospital in Uganda, and is Co-Director of the annual Stanford 2-week Intensive Global Health Course. She serves as a mentor and program point of contact for our Global Health Track residents, as well as for all of our residents interested in working overseas during their residency.


2023-2024 Chief Residents

Ankita Devareddy, MD

Chief Resident

Ankita earned both her B.A. in Economics from Northwestern University where she had a focus in health disparities and the economics of medicine. She graduated from Northwestern’s Feinberg School of Medicine in 2020 and began her internal medicine residency at Stanford. While at Stanford, she was elected to be a class representative for the first two years and is now one of three Chief residents. More During her internal medicine residency she has cultivated her interest in health disparities in medicine, medical education, and cardiovascular diseases. She has worked closely with Drs. Fatima Rodriguez and Rajesh Dash to study health disparities in cardiovascular disease. She has a clinical and research interest in advanced heart failure, and is studying the progression of disease in hypertrophic cardiomyopathy with Drs. Matthew Wheeler and Euan Ashley. She presented her work at the 2022 ACC conference in Washington DC. In her time outside the hospital, Ankita enjoys rock climbing, hiking, reading and cooking. After her chief year, Ankita plans to pursue fellowship training in cardiology.


Mugdha Joshi, MD

Chief Resident

Mugdha grew up in a suburb of Atlanta and graduated from the University of Georgia where she studied Anthropology and Biology and sang in every choir that would let her join. She went to Harvard Medical School where she became interested in the socio-cultural aspects of integrating technology into taking care of patients which drew her to Stanford for her internal medicine residency. More At Stanford in addition to enjoying clinical care of patients and teaching and learning on her teams, she was involved with the Resident Safety Council and the Housestaff Information Technology Enhancement Council (fondly known as HITEC) in developing new patient care communication workflows. With the CCU and continuity clinic being her two favorite places in the hospital, she is pursuing a career in academic cardiology and hopes to continue exploring the role she can play in effectively incorporating digital health technologies and machine learning algorithms into patient care in a way that keeps medicine fun and the physician-patient relationship front and center. In her free time she enjoys experimenting with different cuisines, spending time with friends and family, and looking for beautiful Bay Area views.


Sarah Talamantes, MD

Chief Resident

Sarah grew up in Denver, Colorado and traveled across the country to Ithaca, New York for college where she studied Biopsychology at Cornell University while also playing for Cornell’s NCAA Division I women’s basketball team. Sarah worked as a clinical research coordinator at the University of Colorado Cancer Center before enrolling in medical school at Northwestern University. More As a medical student, she continued to explore her interest in clinical research by participating in several projects, and she also found a new passion, medical education, through teaching and mentoring junior students. She was delighted to match at Stanford, where she found mentors and opportunities in both clinical research and medical education early in her residency. Given her prior research on immune cells and her clinical interest in Gastroenterology, inflammatory bowel disease has become her research focus, and she was recently awarded her first grant to assess the effects of plant-based diets on inflammatory bowel disease. She is pursuing a career as an academic Gastroenterologist, dedicated to both research and medical education. In her free time, Sarah enjoys running and hiking with her dog, Winston, watching the Dallas Cowboys with her family, and exploring the Bay Area restaurants, breweries, and wineries with her husband and friends.


Residency Staff

Karina Delgado-Carrasco

Director of Education Programs

Karina joined the Medicine Residency team in 2010, and she currently serves as the Director of Education Programs. She is the Co-Chair for the Department of Medicine’s Staff Diversity, Equity, and Inclusion Committee, and received Stanford GME’s “Award for Outstanding Contributions to GME” in 2018. Karina is from San Jose, California, has a BA in Public Health from UC Berkeley and a MA in Counselor Education from San José State University. In her free time she enjoys cooking with her family, reading historical novels, and collecting unique children’s books for her daughter.

Audrey J. Austrie Holmes

Residency Program Manager

Audrey joined the Medicine Residency team in 2010, and currently serves as the Program Manager. She is the co-lead of the Department of Medicine’s Leadership Development Program (LDP), and the staff liaison for the Med Res Diversity Committee for residents and fellows. Audrey is from the Bronx, NY, and has a BS in Psychology from Vanderbilt University in Nashville, TN. During her free time Audrey enjoys hanging with her husband and two children and singing at her local church where she is the Campus Worship Director.

Luis Hernandez

Residency Scheduler

Luis Joined the Medicine Residency team in 2022 and currently serves as the Residency Scheduler. He works directly with the Program Director, Program Manager, and Chief Residents to fully execute the residents schedule for the academic year. Luis is from Mexico City, MX, and is currently completing his BA in Global Health at Arizona State University. In his spare time, he likes to watch football, soccer, horse racing, and hang out with friends.

Holly Higa

Lead Residency Coordinator

Holly joined the Medicine Residency team in 2019, and she currently serves as the Lead Residency Coordinator. Her role with the program includes providing admin support to resident-led committees, organizing resident wellness activities throughout the year, and maintaining the program website.  Holly is from San Jose, California and has a BA in International Relations from UC Davis. In her free time she enjoys reading, watching basketball (go Warriors!), and listening to podcasts.

Michelle Lee

Recruitment and Event Lead

Michelle joined the Medicine Residency team in 2015 and serves as the Recruitment and Event Lead Coordinator. She plans several annual events for the residents, including the Intern and Resident retreats and Graduation. Michelle is from Laguna Hills, CA (Orange County) and completed her B.A. in Communication and History at UCSD and her M.Ed. at UCLA. She enjoys exploring touristy sites in the Bay Area and trying out the latest foodie spots with her husband and toddler.

Rianna Garcia

Residency Coordinator

Rianna joined the Medicine Residency team in 2021 and currently serves as the Residency Coordinator. She supports the program by assisting in creating resident block and clinic schedules, preparing for recruitment, and creating content for the program's social media accounts. Rianna is from Stockton, CA and has a BS in Public Health with a concentration in Health Services Administration from San José State University. In her free time, Rianna enjoys going to scenic places with friends, playing the piano, and trying new food places.

Minh Lan Nguyen

Residency Coordinator

Minh-Lan joined the Medicine Residency team in 2022 and currently serves as the Residency Coordinator. She supports the program through scheduling resident meetings with the Program Directors and assigning evaluations. Minh-Lan is from San Jose, CA and has a BA in Sociology from San Jose State University. In her free time, she enjoys spending time with her family.

Alice Leung

Educational Program Associate

Alice joined the Medicine Residency team in 2023 and currently serves as an Educational Program Associate. Alice supports the program by scheduling and operating educational lunch conferences and maintaining the office environment. Alice is from Morgan Hill, CA and has a BS in Public Health with a concentration in Nutrition and Food Sciences from San Jose State University. During her free time she enjoys reading, cooking, and finding new dessert spots to try.

Welcome from our Department and Program Leadership