Outstanding graduates from Washington University School of Medicine and other leading medical schools across the country are members of the housestaff.

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PGY 4 Chief Residents

Jean-Claire Powe Dillon, MD, MPH

Hometown: Dallas,TX
Undergraduate School: Hampton University in Virginia
Medical School: University of Texas Southwestern Medical School
PubMed name(s):

More about Dr. Dillon

Why did you choose WashU for your residency?
WashU has been an amazing fit for me because of the strong gynecology sub-specialty departments, the wealth of research opportunities, and the diverse patient population that I have the opportunity to learn from and care for.

What do you do outside of work?
During our free time, my husband and I love traveling, finding fun restaurants, and being outside whether that is relaxing in a garden or going to the zoo. We are excited for this journey and we are ecstatic to be in beautiful Saint Louis.

Fun Fact: 
While in medical school, I completed a dual MD/MPH degree, receiving my MPH through the University of Texas Health Science Center School of Public Health.


Bridget Huysman, MD, MPH

Home state: Connecticut
Undergraduate School: University of New Hampshire
Medical School: George Washington University School of Medicine and Health Sciences
PubMed name(s):
Pronouns: She/Her/Hers

More about Dr. Huysman

Why did you choose WashU for your residency?
In med school, I was actively involved in the student run free clinic and sexual health education for DC teens. Ready for a change in a new part of the country, I took the opportunity to do an away elective at WashU during my fourth year of medical school. The energetic, team oriented residents, supportive faculty, high acuity surgical training, and opportunity to be front line in health disparities brought me back to St. Louis for my residency training.

What are your career goals/interests?
I want to use my skills as an OBGYN to work with underserved populations domestically and globally to advocate for women, reduce health disparities, and promote health equity.

What do you do outside of work?
Outside of the hospital, you will find me riding my bike, doing yoga, catching a sunset on the beach (or the Mississippi River), and traveling the world with my partner and family.

Fun fact:
Prior to medical school, I worked in the OR, traveled to Central and South America, and completed my masters degree in public health, concentrating in global health and epidemiology.


Elizabeth Johns, MD

Hometown: Columbus, OH
Undergraduate School: Hampshire College in Massachusetts
Medical School: University of California, San Franciso, School of Medicine
PubMed name(s):
Pronouns: 
She/Her/Hers

More about Dr. Johns

Why did you choose WashU for your residency?
I chose Barnes-Jewish/Wash U because of the kindness of everyone I met here, the research opportunities, and, most importantly, because it felt like a place I could receive excellent clinical training within a well-resourced system with a high surgical volume.

What are your career goals/interests?
My research thus far has focused on better understanding the social determinants of health that affect various high-risk patient populations and I plan to continue this work at Wash U.

What do you do outside of work?
Outside of work, I can be found riding as much and as fast as I can on my bike, exploring St. Louis and all of its restaurants, spending time with my wife, and catching up with friends near and far.

Fun fact:
I have lived/worked in Namibia and Rwanda. I was also in a Program in Medical Education for the Urban Underserved.


Susannah (Susie) Koch, MD

Hometown: Northwest suburbs of Chicago, IL
Undergraduate School: University of Illinois at Urbana-Champaign
Medical School: University of Iowa Roy J. and Lucille A. Carver College of Medicine
PubMed name(s):
Pronouns:
She/Her/Hers

More about Dr. Koch

Why did you choose WashU for your residency?
It was important to find a residency program with a diverse patient population, robust pathology and high acuity. I was honored to match at WashU and excited because it checked all the boxes for my ideal training experience.

What are your career goals/interests?
I am passionate about global health and providing quality care to the marginalized and underrepresented within communities

What do you do outside of work?
When I’m not at work you can find me going on long walks with my boyfriend and our greyhound. I also love trying new restaurants, baking, practicing yoga and spending time with my fellow interns!


Tyler McKinnish, MD

Home state: A tiny mountain town in North Carolina
Undergraduate School:
Medical School: University of North Carolina at Chapel Hills School of Medicine
PubMed name(s):

More about Dr. McKinnish

Why did you choose WashU for your residency?
In medical school, I found out what kind of doctor I wanted to be: one who listens to patients, creates new alliances with colleagues, and builds up fellow learners. I came to Wash U because I felt like this was a great place to practice those skills. Incredible patients shoulder complex pathologies and there is world-class research and teaching happening every day. The surgical volume and complexity is unbelievable, and I can’t wait to apply what I learn here in a surgical fellowship.

What are your career goals/interests?
My academic interests lie in improving the care of sexual and gender minority patients, using quality improvement methodologies to reduce waste and improve cost effectiveness, and innovations in medical education.

What do you do outside of work?
If you can’t find me jogging in forest park, I might be somewhere eating pizza, or could be meeting people out in the Grove; call me, maybe you can join us!

Fun fact: In my childhood, I spent more time in the woods or on the water than anywhere else!



Manuela Mejia, MD

Home state: I was born in Colombia and grew up mostly in South Florida
Undergraduate School: Duke University (Go Devils!)
Medical School: Washington University School of Medicine
PubMed name(s):

More about Dr. Mejia

Why did you choose WashU for your residency?
I went to medical school at WashU and I’m so excited to spend my residency here as well! I love the warm and welcoming atmosphere created by the residents, faculty and staff that I got to experience as a student.

What do you like best about being a resident here at WashU?
This program has phenomenal surgical training, exposure to diverse patient populations and pathology, and I know it will prepare me to be a well-rounded and confident OB/GYN.

What do you do outside of work?
When I’m not at Barnes, you will find me in Forest Park 90% of the time when the weather is nice, exploring STL’s fabulous food scene with my friends, or planning my next vacation.


Xiao-Yu Wang, MD

Home state: Massachusetts
Undergraduate School: Washington University in St. Louis
Medical School: Case Western Reserve University School of Medicine
PubMed name(s):

More about Dr. Wang

Why did you choose WashU for your residency?
I am so happy to be back at Washington University, Barnes Jewish Hospital, and St. Louis and to have the opportunity to help the community that helped me grow so much during undergrad. I chose WashU for many reasons, including the high volume and high acuity training, amazing academic research, and opportunity to help underserved patient population.             

What do you like best about being a resident here at WashU?
What really seals the deal is the people. The amazing faculty, co-residents, support staff, and patients overall create a supportive work environment to thrive in.

What do you do outside of work?
Outside of the hospital, I am a die-hard New England sports fan (although sometimes my fandom carries inside as well). I also love baking and cooking and more importantly sharing my culinary creations with everyone. In my free time, you can find me exploring the vibrant food scene of St. Louis or enjoying the amazing attractions in Forest Park.


Virginia (Young) Watkins, MD

Hometown: Richmond, Virginia
Undergraduate School:
Medical School: Virginia Commonwealth University School of Medicine
PubMed name(s):
Pronouns:
She/Her/Hers

More about Dr. Watkins

Why did you choose WashU for your residency?
I came to Wash U in St. Louis for the unbelievable training and limitless opportunities for personal growth.

What do you like best about being a resident here at WashU?
After starting residency, I am most excited about my co-residents!

What do you do outside of work?  
I got married on New Year’s Eve 2017 to my husband, Tommy, and we have 2 perfect fur babies, a golden retriever named Beau and a Bernese Mountain dog named Nala. We love going to the park, 90s music, macaroni and cheese, and spending time with our family and friends.

Fun fact: Conveniently named, I’m Virginia from Richmond, Virginia!


Lulu Yu, MD, MPHS

Hometown: Minden, NV
Undergraduate School: Washington University in St. Louis
Medical School: 
Washington University School of Medicine
PubMed name(s):
Lulu Yu
Pronouns: She/Her/Hers

More about Dr. Yu

Why did you choose WashU for your residency?
I chose WU for the wealth of opportunities it provides residents to learn, develop their skills, and pursue their own career paths. As a medical student, I was impressed by everyone’s commitment to patient care, but also all the genuine camaraderie between residents, support from faculty, and dedication to teaching.

What do you like best about being a resident here at WashU?
Working with my co-residents: everyone is incredibly talented and hard-working, but also grounded so that it’s fun to work them, even on a busy shift.

What are your career goals/interests?
I’m interested in academic medicine so I can work with students and conduct research on social determinants of health and how to improve access to healthcare for under-served populations.

What do you do outside of work?
Run in Forest Park, cook/bake, try new restaurants, hike nearby

Fun fact: I trained in classical ballet for 16 years.


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PGY 3 Residents

Jinai Bharucha, MD
Graduates 6.30.23

Tamara Cameo, MD
Graduates 6.30.23

Whitney Grither, MD, PhD
Graduates 6.30.23

Drew Hensel, MD
Graduates 6.30.23

Lauren Holroyd, MD, MBA
Graduates 6.30.23

Alison Kosmacki, MD
Graduates 6.30.23

Lauren Kus, MD
Graduates 6.30.23

Mark Valentine, MD, PhD
Graduates 6.30.23

Elise Wilson, MD
Graduates 6.30.23


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PGY 2 Residents

Shannon Beermann, MD
Graduates 6.30.24

Barbara Blachut, MD
Graduates 6.30.24

Melissa Cantave, MD
Graduates 6.30.24

Vanessa Fuentes, MD
Graduates 6.30.24

Elizabeth Buckley, MD
Graduates 6.30.24

Erika Mauban, MD
Graduates 6.30.24

Caroline Min, MD, MPH
Graduates 6.30.24

Alexandra (Allie) Rubin, MD
Graduates 6.30.24

Halley Staples, MD
Graduates 6.30.24


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PGY 1 Residents

Jamie Doss, MD
Graduates 6.30.25

Helen Gao, MD
Graduates 6.30.25

Jaclynne Hedge, MD
Graduates 6.30.25

Christina Herbosa, MD
Graduates 6.30.25

Hannah Millimet, MD
Graduates 6.30.25

Mitra Sharifi, MD
Graduates 6.30.25

Debbie Shim, MD
Graduates 6.30.25

Kai Stewart, MD
Graduates 6.30.25

Kati Turner, MD, MPH
Graduates 6.30.25