Department of Medicine

Internal Medicine Residency

Chief Residents


Cassidy Overpeck– Chief Resident, Quality & Patient Safety
"I am an Indianapolis lifer, having completed undergrad and medical school prerequisites at IUPUI before enrolling in IUSOM for medical school and IU Internal Medicine for residency. My original degree was in political science and I worked as a public opinion researcher before leaving employment for 5 years to have and raise my 3 lovely children now 10, 12 and 13 and my stepadaughter now out on her own at 19. As a latecomer to medicine, I absolutely love what I do and also value work-life balance. In my spare time, I hang out with my husband of ~15 years Eric, read fiction and nonfiction, cook and spend time with my extensive extended family here in town.   After Chief year, I plan to practice general internal medicine with a mix of inpatient, outpatient and teaching opportunities here in the Indy area."


Mark Berlacher – Chief Resident, Eskenazi Health Hospital
"Thank you for your interest in IU! I will have the pleasure of serving as the Eskenazi Chief Resident this year. Eskenazi Hospital is a part of the largest public healthcare system in the state and the location for much of our medical student and housetaff education at IU. Raised in a small suburb of Toledo, OH, I obtained my undergraduate degree in Biochemistry at the University of Wisconsin–Madison before returning home for medical school at the University of Toledo College of Medicine. I chose IU for residency for the camaraderie I observed between the residents during my interview day along with the unique four-hospital system. Needless to say, it was an excellent choice for me! IU has provided a rare blend of elite clinical training with a very supportive family co-residents and faculty. I have formed many great friendships over the past three years and was even fortunate enough to have met my future wife, a Medicine-Pediatrics resident, while here. In my spare time I enjoy exploring the local restaurant and microbrewery scene, playing basketball and cheering on my college alma mater. I look forward to serving our current IU residents this year and helping recruit the next great class of IU interns.  After completing my chief year I plan to pursue a fellowship in cardiology. Please feel free to contact me with any IU related questions!"

Andrew Wiele – Chief Resident, IU Methodist Hospital
"Welcome and thank you for your interest in Indiana University! I am very excited to be serving as the Chief Resident at Methodist Hospital this year! I grew up in Saint Louis, MO, and am a Midwest boy through and through. My undergraduate studies took me near Chicago, to Wheaton College, where I had the privilege of playing basketball. Although I grew up with the hopes of being an NBA player or joining Nelly on tour, when those didn’t pan out I thought being a physician was a fine alternative. So I moved to Kansas City for medical school, home of the world’s best barbecue. On the interview trail, I was impressed with Indiana University’s training diversity and program leadership, and my interactions with the housestaff convinced me this was the best fit for me. I was thrilled to match at IU and I am proud to say the training has been excellent and Indianapolis has become my home. I met my wife, Catie, shortly after moving here; and from co-residents to mentors, the people at IU continue to amaze me. Indianapolis is a great city, with plenty of amenities and a cost of living that allows you to enjoy them. Catie and I particularly enjoy walking in our neighborhood (Fall Creek Place), biking on the Monon Trail, Butler basketball games, and eating at the many fantastic restaurants (Festiva is our favorite!) in the area. I’ll always be a Cardinals fan but have also enjoyed adopting new NBA and NFL teams. I am excited to serve our residents as an advocate and educator this year and hope to pursue a fellowship in Hematology & Oncology. Please feel free to contact me with any questions you may have about life at IU!"

David Ingram – Chief Resident, Roudebush VA Hospital
"Growing up, I often moved from place to place. My father was in the military which caused our family to move around the U.S. and even overseas. My high school years were split between Georgia and Arizona, and I stayed in Arizona for both undergraduate and medical school. During residency interview season, the program at IU stood out to me because of my positive interactions with the residents and staff, and because of the diverse and unique training that it offers. I was impressed by the four hospital system and the unique pathology each setting provided. Moving to the Midwest to work at IU has been a great experience for me and my family. I have obtained excellent training and made great friends. I feel that residents have a voice here and truly help shape the program for the better. 

On a personal note, my wife and I had our first child, Noah, during residency and have become frequent visitors of the Children's Museum and many of the great parks here in Indy. We live near the Monon Trail in Broad Ripple and often take walks with Noah. We are avid college and professional sports fans and also enjoy the foodie scene in Indy. I look forward to being the Chief Resident at the VA this year and eventually plan to pursue a fellowship in Infectious Disease."

Umer Bhatti – Chief Resident, IU Hospital
"I grew up in the vibrant city of Lahore, Pakistan, attended medical school at the Aga Khan University in bustling Karachi, and count myself extremely fortunate to have ended up in Indianapolis, where my training has been excellent! I felt excited and proud of the work we did, and had a lot of fun doing it. The four hospitals blend together community, private, tertiary care, and VA experience that combines plenty of "bread and butter medicine"  with a diverse patient population. I have witnessed the program value the residents’ feedback and to make change- which is why we have been early adopters of global health, patient safety, wellness, and many other initiatives! The greatest asset of the program though, are the wonderful people I’ve gotten to call my colleagues and friends. I look forward to utilizing this year doing my part in giving back to further the culture of education and research, and advocating for our residents and students as the Chief Resident at University Hospital.

Outside of work I read, follow basketball and cricket, and spend time with my wife, a Pediatrician at Eskenazi. We love exploring Indy’s evolving food scene, concerts and sporting events. We also and travelling, but that’s on hold as we await the arrival of our first child this year and as I apply for fellowship in Gastroenterology."

Melinda "Mindy" Hsu – Chief Resident, Ambulatory Care
"I am originally from Cincinnati, where I grew up dancing and playing soccer, piano, and the violin. In college at Harvard University I majored in developmental psychology and spent most of my free time dancing and choreographing (mostly traditional Chinese dance) for the Asian-American Dance Troupe there. Unsure of what I wanted to do after college, I pursued a Masters in Science in Physiology with specialization in Complementary and Alternative Medicine at Georgetown University.  I am so excited to be the Ambulatory Chief Resident this year! We have a very unique Ambulatory curriculum which has undergone some major revisions in recent years, including the implementation of a Lifestyle Curriculum!"

   Hassan A. Ahmad– Chief Resident, Medicine/Pediatrics

"I was born in St. Louis and went to medical school at the University of Missouri-Kansas City.  I was lucky enough to complete an accelerated BA/MD program, and greatly enjoyed my time in KC.  When searching for a Med-Peds program, I was attracted to IU's size and diverse patient population.   Since I have started here, I have been impressed with the great faculty, their love for teaching, and the mentorship available across all specialties.   My wife and I have enjoyed Indianapolis, exploring the various restaurants along with great attractions like the Children's Museum and the Zoo.  We live along the canal, which I love for its proximity to all the hospitals and the great scenery.  I am grateful for the opportunity to serve as one of the Chief Residents, and I am planning on applying for an Allergy-Immunology fellowship in the fall."


Erika Zevin – Chief Resident, Medicine/Pediatrics

" I was born in the suburbs of Chicago.  I am an avid Chicago sports fan and enjoy traveling and trying new restaurants around the city.  With both my parents working as doctors, I knew she wanted to go into medicine.  I attended Beloit College in Wisconsin and Medical College of Wisconsin in Milwaukee for medical school.   I love my time at IU working with such wonderful people and am excited to serve as one of the chief residents for the Med-Peds program."