Chief Residents
Chief residents provide leadership and support to residents in the combined Internal Medicine-Pediatrics Residency program. They serve as mentors and advocates for the residents and set a positive tone for the program.
Mac Light, MD, MBA
Hello! My name is Mac Light. I was born and raised in the greater Houston area in Texas. I studied biology with a business minor at a small liberal arts school in Georgetown, Texas called Southwestern University. In medical school at Baylor College of Medicine in Houston, I took a year between MS3 and MS4 to pursue my MBA at Rice University. Combining both my interests in medicine and administration, I'm planning to pursue a career as a combined hospitalist with administrative roles in value-based care and physician leadership.
I had a hard time deciding what to do for residency because I liked a little bit of everything. I knew I had found my people in med-peds when I realized they had the same problem! I think the IU med-peds experience prepares one to be the quintessential med-peds physician. It gives us five diverse training sites, four EMRs, three times the group chats, two board exams, and one big happy med-peds family. There is also a lot to see in Indy, from the Mass Ave restaurants, the major/minor league sports teams, the live music venues, the running trails along the White River, and the Indianapolis Motor Speedway (home to the greatest spectacle in racing). It is an honor to serve as one of the chief residents for 2025-2026.
Outside of the hospital, I enjoy playing soccer on the official med-peds soccer team "Goals of Care," playing chess at the downtown library's chess club "Books & Rooks," and running the Indy Mini Marathon every year. Welcome to IU med-peds!
Alaina Turchi, MD, MS

Originally from the Midwest, I have been fortunate to complete many stages of my medical education and residency training within the Hoosier state. I studied neuroscience at Indiana University Bloomington, later venturing to Philadelphia to complete a Master’s of Science in Biomedical Science. My path then brought me back to Indiana University School of Medicine for medical school, and further to stay on at IU for residency, where I now serve as a med-peds chief resident.
I was drawn to med-peds for its ability to combine the comprehensive, systematic approach of internal medicine with the family-centered, advocacy driven style of pediatrics. I was able to experience the breadth of our med-peds family, working with the incredible med-peds residents, hospitalists and specialists as a student. IU offers the perfect training environment with its strong categorical programs, emphasis on patient advocacy and the supportive med-peds community that has shaped both my career and personal growth. My favorite highlights of residency have included service on the strategic engagement and recruitment committees, working at Camp Riley with medically complex children and pursuing global health research in Eldoret, Kenya through AMPATH.
My academic interests center around both pulmonary medicine and health equity. In true med-peds fashion, I plan to focus on transitions medicine for tracheostomy and ventilator dependent pediatric patients.
As a chief resident, I hope to continue fostering a culture of inclusivity, mentorship and resident support. Med-peds thrives because of the diversity of its trainees’ passions, and I am eager to help others explore their “why med-peds” while preparing for their next steps.