Northwestern University Feinberg School of Medicine

Department of Medicine

Chief Medical Residents

Drs. Bill Werbel, Meredith Sellers, Alex Lemmer, and Greg Cascino come from different backgrounds, have different clinical and research interests, but share a common role for the upcoming year: they will serve as liaisons between the residents and the Internal Medicine Residency Program leadership team.

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Pictured left to right: Bill Werbel, Greg Cascino, Meredith Sellers, and Alex Lemmer

William Werbel, MD
Hometown: Chappaqua, NY
Undergraduate: Harvard College
Medical School: University of Michigan
Plans after chief year: Infectious Diseases fellowship

Gregory Cascino, MD
Hometown: Rochester, MN
Undergraduate: Northwestern University
Medical School: Mayo Medical School
Plans after chief year: Cardiology fellowship

Meredith Sellers, MD
Hometown: Cleveland, TN
Undergraduate: Vanderbilt University
Medical School: Vanderbilt University
Plans after chief year: Hematology/Oncology fellowship

Alexander Lemmer, MD
Hometown: Roanoke, VA
Undergraduate: University of Virginia
Medical School: University of Virginia
Plans after chief year: Gastroenterology fellowship

After more than three years at Northwestern, how would you describe the program?

Meredith: Our program is incredible! I think Northwestern provides a very supportive environment in which to learn medicine. This sense of support comes from all levels – our department and program leadership, our attendings, our fellow residents, and our amazing staff members. My favorite thing about our program is that even during busy clinical rotations in which we are learning so much about pathophysiology and evidence-based diagnostics and therapeutics, we are always focused on the patient and make professionalism and kindness a priority.

Greg: Northwestern is a program that prides ourselves in training physicians that are exemplary in patient care and professionalism. I am continually impressed by the level of dedication, compassion, and intelligence displayed by my colleagues on a daily basis. I am truly blessed to be a part of such an outstanding group of individuals and feel that I have made many life-long friends after just two years here.

Bill: Our program is supportive and friendly, cultivating an environment in which working hard can be fun and rewarding. I appreciate that the default approach to professional and personal interactions at Northwestern is to be open and accepting.

Alex: The positive attitude and energy at Northwestern is incredible and contagious. I feel we do a great job caring for our patients while still having a fun and cheerful environment. Also, the time and effort that attendings, fellows, and upper level residents put into teaching is above and beyond. As an intern in our program, you are surrounded by a supportive learning environment that really prepares you for your career going forward.

What advice do you have for internal medicine residency applicants?

Bill: Look forward to the upcoming few years as an opportunity to learn from your attendings, fellows, residents, and patients in becoming comfortable in navigating the nuances of acute and chronic disease. You’ll be surprised at the rate and extent of your growth.

Greg: As an applicant for Internal Medicine Residency, you have the benefit of being able to explore many terrific programs across the country. Something I found valuable in the application process was determining if I could see myself as part of the program and the city it was in. No matter where you go, Internal Medicine Residency will be an unbelievable experience that is sure to be busy, challenging and sometimes overwhelming; it is important to situate yourself in a supportive – and motivating! – environment.

Meredith: Look for a program that makes resident education and well-being a priority. Ask lots of questions of the program leadership and residents. During your time with the residents, find out their favorite things about the program, whether they feel supported, and how strong the sense of community among the residents is.

Why do you want to be a Chief Medical Resident?

Greg: Being a Chief Medical Resident is a terrific opportunity to be able to lead a program that has been so formative in my training as a resident physician. I have always had a passion for teaching, and I look forward to playing an integral role in the education of the next group of outstanding doctors.

Meredith: I want to be a Chief Medical Resident because of the opportunity to give back to an amazing program that has shaped me into the physician I am today and helped to guide me onto a meaningful career path. As a CMR, I am most looking forward to playing a supportive role for residents as they navigate the ups and downs of residency, the start of a career, and life.

Alex: The guidance and mentoring my co-residents and I have received from current and past chiefs is incredible, and the ability to pay-it-forward and hopefully provide that same level of support is a fantastic opportunity. I look forward to being able to work closely with the new interns and current residents on building their confidence and skills to be able to achieve their specific career goals.