Profiled
Sydney Tyler, MD
Department of Anesthesiology Featured Member: March 2026
Sydney Tyler is a CA-1 in the Department of Anesthesiology at WashU Medicine. Originally from Columbia, MO, Sydney majored in Biochemistry, Biological Sciences, and Classical Humanities at the University of Missouri—Columbia before moving to Denver to earn her Doctor of Medicine from the University of Colorado Anschutz School of Medicine.
Sydney lives with her sister and their two dogs, Bobo and Meatball. In her free time, you can find her walking through Forest Park with her dogs, baking, trying out new area restaurants with some of her co-residents, and curling up on the couch with a good book. A fun fact about Sydney is that she loves our National Parks, and her and her mother make the time to visit at least one every year—so far her favorite is Glacier National Park.
Miguel Valdez Zerpa, MD
Resident Physician
Department of Anesthesiology Featured Member: December 2025
Miguel is a second-year anesthesiology resident at WashU Medicine. He was born and raised in Maturín, Venezuela, where his early exposure to medicine through his father’s work as a physician inspired his path to healthcare. He completed his medical degree at the Universidad de Oriente before moving to the United States, where he became involved in clinical research and contributed to the launch of the THRIVE trial in the Department of Anesthesiology. Miguel enjoys the balance of strong clinical training and research opportunities at WashU Medicine.
Outside of medicine, he loves running through Forest Park, and spending time with his wife and family. He plans to pursue a fellowship and continue his career in academic medicine following graduation from the residency program in 2028.
Swarup Varaday, MD
Associate Professor, Obstetrics and General Anesthesiology
Department of Anesthesiology Featured Member: October 2020
Swarup is an Associate Professor in the departments of Obstetrics and General Anesthesiology. He grew up and attended medical school in the beautiful coastal city of Visakhapatnam, India. He did his anesthesia residency in India before moving to England to complete his specialist training in anesthesiology at Imperial College London, earning both FRCA from U.K. and FCARSI from Ireland.
He worked as a consultant anesthetist in London for short period before moving to St. Louis in 2007. Swarup considers joining the Department of Anesthesiology at Washington University School of Medicine as one of the best decisions of his life because of its diverse, wonderful, and supportive people. Swarup is passionate about teaching is very active in medical student and resident education. He has been a dedicated faculty mentor and advisor for several residents. He is actively involved in the new Gateway curriculum for the School of Medicine's medical students and is co-director for the medical student clinical immersions program. His clinical work is shared between the obstetric and general anesthesiology divisions and he serves as co-leader for POD1 at Parkview Tower.
Outside of work, he loves spending time with his family, especially with his sons Tamish, who is 11 years old, and Grihith, who is a freshman at Washu. When time allows he enjoys, gardening, cooking, DIY-home improvement projects, and traveling.
Anandhalakshmi Varadharajan, MD, MBBS
Physician
Department of Anesthesiology Featured Member: July 2020
Dr. Ana was born and raised in a coastal town Pondicherry, in India. She graduated from medical school in India and moved to St. Louis in 2002. She completed her IM residency at St. Luke’s hospital in Chesterfield, and her Critical Care fellowship at St. Louis University School of Medicine, in the Critical Care Medicine Fellowship Program at Mercy Hospital. In 2018, Dr. Ana joined Washington University's Department of Critical Care Medicine as an intensivist. She currently resides in Chesterfield with her husband, Rajan, and children, Sri and Akilesh. She enjoys traveling with her family and watching home decoration shows. Interior decoration is her second passion after medicine.
Zameer Vaswani, MD, MBA
Resident Physician, Class of 2027
Department of Anesthesiology Featured Member: June 2024
Zameer G. Vaswani, MD, MBA, is a rising CA-1 resident with the Department of Anesthesiology. Born and raised in Austin, Texas, he obtained both his undergraduate and medical degrees from the University of Texas at Austin prior to starting residency in 2023. During his time in medical school, he also obtained his Master of Business Administration, with the hopes of one day bridging the gap between the clinical and administrative aspects of healthcare to advocate for his future patient population.
Outside of the hospital, Zameer enjoys spending time with his family and friends, playing golf, traveling, and supporting his alma mater, the Texas Longhorns. While undecided on what fellowship he would like to pursue at this time, he has interests in cardiac, trauma, and pediatric anesthesiology.
Fun Fact About Zameer: He likes to listen to deep house music and explore new coffee shops, restaurants, and breweries in his new home, St. Louis.
Shirley Vaughn
Academic Programs Assistant
Department of Anesthesiology Featured Member: September 2022
Shirley joined the department in 2010. Prior to joining the clinical world, she worked in sales and marketing for several companies over 30 years, including Mercy Health Plans, Spectrum Brands, and Angelica Image Apparel. She currently works in the resident office as the academic programs assistant. Her day-to-day tasks include coordinating the medical student rotations and doing what she loves best, event planning.
Shirley is proud to say she’s a country girl born and raised. She was born on a farm in Arkansas, and raised in Kennett, MO (Bootheel), which is also the home of Sheryl Crow, singer, songwriter.
In her spare time, Shirley enjoys spending time with her family, Caribbean traveling, sampling new restaurants, tending to her herb garden, cooking, and attending world-wide jazz concerts.
She is excited to be traveling to Curacao in October. Her bucket list trip is to attack Europe via backpack by train in her jeans, crisp white shirt, boots, toothbrush, and a pair of really cool shades. Living life is what it’s all about!
Clair Visconti, PA-C
Physician Assistant
Department of Anesthesiology APP of the Quarter: June 2022
Clair Visconti is a Physician Assistant from Alton, Illinois. She earned a bachelor's degree in Health Sciences from the University of Missouri in 2016, and then earned a master's degree in Physician Assistant Studies from Stephens College in Columbia, Missouri in December of 2019. Clair has been with the Department of Anesthesiology at WashU for two years.
From the first time she stepped foot in an ICU as a student, Clair has been passionate about critical care. She is committed to providing thoughtful and compassionate care for her patients, and is dedicated to her continued education. She loves being able to work together with her colleagues as a team.
Clair was named the Q2 2022 APP of the Quarter!
Her nominators say:
"Clair is exceptional. She consistently shows genuine dedication to caring for patients, being a team member, picking up/changing her schedule to fill staffing gaps, and being an overall exceptional APP! Clair consistently seeks to advance her knowledge and has been instrumental in advocating for the patients at CH. I can always count on Clair and proud to have her as a colleague!"
"Clair is always willing to help the group. She is passionate about making changes at CHNE, and offers solutions. It is exciting to watch her confidence grow in such a challenging environment. I am very proud of her growth as a member of the APP group at CHNE!"
Sherri Vogt
Senior Research Lab Manager
Department of Anesthesiology Featured Member: November 2019
Sherri is the lab manager for Dr. Gereau. She has worked in the Department of Anesthesiology for 11 years and has been at Washington University for over 30 years. Sherri has two children; Megan and Derek. Outside of work, she loves to go antique shopping with her husband. In her spare time, she sings in a community choir, teaches Sunday school, reads and enjoys watching the Blues.
Daniel Wachter, ACNP-BC
Acute Care Nurse Practitioner
Department of Anesthesiology Featured Member: August 2020
Dan grew up in South County, St. Louis, where he currently resides and is an Acute Care Nurse Practitioner (ACNP). He earned his BSN through Maryville University and then worked at Missouri Baptist Medical Center as a nurse in the ICU for seven years. While working full time at Missouri Baptist, he also went to school full time to earn his ACNP license and then joined the department in April 2018. Currently, Dan works in the ICU at Christian Hospital Northeast with an amazing group of Advanced Practice Practitioners (APPs) and physicians. “I feel blessed to be a part of such a great team and for the opportunity to grow both professionally and personally with such great individuals.” Dan looks forward to begin precepting the students of the Goldfarb School of Nursing ACNP program this winter. He lives with his wife Sarah and their four children Lucy (4), Charlotte (2), Isabel (1), and August (1). In his free time, he enjoys spending time with his kids in the outdoors, swimming, SCUBA, and cooking.
Ashley Weinhold, MD
Assistant Professor, Pediatric Anesthesiology
Department of Anesthesiology Featured Member: May 2023
Dr. Ashley Weinhold is an assistant professor of anesthesiology at Washington University School of Medicine in St. Louis. She is originally from Arkansas, earning her bachelor’s degree in biology at the University of Central Arkansas. She attended medical school at the University of Arkansas for Medical Sciences College of Medicine. Dr. Weinhold then completed her residency in anesthesiology at Washington University/BJC. After completing a pediatric anesthesiology fellowship at Washington University/St. Louis Children’s Hospital in 2016, she joined the faculty. She has been involved in education efforts within the division ever since!
Dr. Weinhold started as associate program director for the pediatric anesthesiology fellowship in 2020 and took over as program director for the fellowship in 2021. Her main areas of clinical interest are pediatric trauma and mass casualty planning as well as pediatric acute pain and regional anesthesia. She was recently elected as Clinical Representative to the Executive Committee of the Faculty Council for Washington University School of Medicine, beginning AY 23-24.
Ashley lives with her husband Mark and their two sons. When not busy at work, she loves spending time with her family enjoying all the fabulous things St. Louis has to offer – Grant’s farm, the science museum, the zoo, the museum of transportation, and the botanical gardens, just to name a few! She loves reading and is also looking forward to some traveling this year!