Radiation Oncology Medical Residency

Current Residents


Class of 2021

Andrew Barsky, MD

Andrew Barsky, MD

I grew up on Long Island, NY, and received my undergraduate degree in Biological Sciences with a minor in Music from Cornell University. I then moved to Philadelphia for medical school at the University of Pennsylvania. I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania, before beginning my Radiation Oncology training here at Penn. My research interests in medical school and residency have involved trimodality therapy for esophageal cancer, photodynamic therapy for malignant mesothelioma, as well as radiation-associated malignant mesothelioma. Outside of work, I enjoy watching Boston sports, spending time with family (including my dog, Moxie), and eating my way through Philly's restaurants with my friends!


Anish Butala, MD

Anish Butala, MD

I grew up near Utica, New York and received my undergraduate degree in Management and Organizational Analysis from NYU's Stern School of Business. I then moved to Chicago to attend medical school at Northwestern University. Prior to joining Penn's Department of Radiation Oncology, I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania. My academic interests during medical school included CNS malignancies (specifically, meningiomas and glioblastomas) and recurrence detection in pediatric solid tumors. In my free time I enjoy running, traveling, and spending time with family and friends. 


Jahan Mohiuddin, MD

Jahan Mohiuddin, MD
Chief Resident

I grew up on Long Island, NY and then called North Carolina home for 10 years while attending the University of North Carolina at Chapel Hill for college, a post-grad gap year, and medical school.  During medical school I spent a year as a Howard Holderness Distinguished Medical Scholar researching neoadjuvant chemotherapy for breast cancer, high risk prostate cancer, and node-positive prostate cancer.  I completed my intern year at the Hospital of the University of Pennsylvania.  In my spare time I enjoy biking along the river with my wife, competing in a local table tennis league, and working on my golf game.


Vishruth Reddy, MD, PhD

Vishruth Reddy, MD, PhD

I grew up in Tennessee and attended Vanderbilt University where I majored in International Studies. After graduation, I stayed in Nashville and joined the Medical Scientist Training Program at Vanderbilt to earn my combined MD/PhD. I completed my PhD in Cancer Biology, studying intestinal stem cell signaling and its role in minimizing intestinal toxicity from radiation through an individual F30 grant from the National Institutes of Health. Prior to joining the Department of Radiation Oncology, I completed an internship in Internal Medicine at the Hospital of the University of Pennsylvania. Outside of the hospital, I enjoy traveling, exploring Philadelphia, and spending time with family and friends.



Class of 2022

Timothy Kegelman, MD, PhD

Timothy Kegelman, MD, PhD

I grew up in Yorktown, VA and completed undergraduate training at the University of Notre Dame, where I majored in Chemical Engineering and served as the captain of the swim team. After graduation, I joined the combined MD-PhD program at the Medical College of Virginia, Virginia Commonwealth University. My PhD was in Human and Molecular genetics, where I focused on a novel protein target in glioblastoma and tested a small molecule inhibitor in combination with radiation. Prior to starting Radiation Oncology training, I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania. Outside of medicine, I enjoy spending time with my family, going on runs with our two dogs (a husky and a mutt), and watching college sports.


Shwetha Manjunath, MD

Shwetha Manjunath, MD

I grew up in Pennsylvania and completed undergraduate training at Haverford College, where I majored in Molecular Biology and studied Nur77 expression in murine hematopoietic stem and progenitor cells. After graduation, I stayed in Philadelphia to research Diamond Blackfan Anemia at Children’s Hospital of Philadelphia for two years. I then joined the University of Rochester School of Medicine and focused my research interests on CAR T cell therapy in acute lymphoblastic leukemia.  Prior to starting Radiation Oncology training, I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania. Outside of medicine, I enjoy spending time with my family and friends, running along the Schuylkill River, and relaxing with my cat.


Graeme Williams, MD, MBA

Graeme Williams, MD, MBA

I grew up in Newtown, PA and graduated from the University of Pennsylvania with degrees in Systems Engineering and Economics.  As an undergrad I participated in ROTC, and after graduation I served 4 years as an officer in the Air Force.   During this time I started, and have since completed, a Masters of Business Administration degree program.  After completing my service commitment I returned to Philadelphia to attend medical school at Temple University.  While there I was fortunate enough to find my way to radiation oncology and worked on several projects investigating radiation dose and outcomes in the setting of gastrointestinal cancers.  I also remain active in organized medicine and policy at the local and state level.  When outside the clinic I spend most of my time exploring Philadelphia and surrounding communities with my wife, son, and our yellow lab, Franklin.


Christopher Wright, MD

Christopher Wright, MD

I grew up near Spokane, Washington and received my undergraduate degree in biochemistry and mathematics from the University of Rochester. I then moved to Philadelphia to attend medical school at Sidney Kimmel Medical School at Thomas Jefferson. My academic interests during medical school included investigating the radiosensitization of tumor cells via inhibition of microRNA-21 and exploring the role of dietary interventions as an adjunct to radiotherapy in early stage breast cancer patients. Prior to joining Penn's Department of Radiation Oncology, I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania. In my free time I enjoy biking along the Schuylkill, binging on the fine (and sometimes not so fine) Philadelphian cuisine, traveling, and spending time with family and friends.



Class of 2023

Emily Anstadt

Emily Anstadt

I grew up in the northwest suburbs of Chicago (Buffalo Grove, IL) and completed my undergraduate training at the University of Wisconsin - Madison where I majored in Medical Microbiology & Immunology and was active in creating a student run emergency medical service on campus. After graduation, I joined the combined MD-PhD program at the University of Connecticut. My PhD was in Immunology and I focused on mechanisms of immune tolerance (specifically, T-regulatory cells and TLR tolerance pathways) in autoimmune diseases. Prior to starting my training in Radiation Oncology, I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania. Outside of medicine, I spend my time exploring/eating my way through the city with my husband and dog, running along the Schuylkill river, going to Phillies games and concerts and visiting my family and friends all around the country.


Kristine Kim, MD

Kristine Kim, MD

I lived in Boston, Massachusetts, and received my undergraduate degree in Biological Engineering from MIT. I then moved across the city to attend medical school at Boston University during which time I completed clinical rotations at Kaiser Permanente in California and Boston Medical Center. Prior to joining Penn's Department of Radiation Oncology, I completed my intern year in Internal Medicine at the Hospital of the University of Pennsylvania. My academic interests include quality of life, patient reported outcomes in cancer care. In my free time I enjoy biking, traveling, and spending time with family and friends.


Nishant Shah, MD

Nishant Shah, MD

I was born in Gujarat, India and grew up in South Brunswick, New Jersey. I completed my undergraduate degree in Biomedical Engineering at Boston University where I was also a competitive dancer. I stayed at Boston University for medical school. I completed my internship in the Department of Medicine at the Hospital of the University of Pennsylvania before joining the Department of Radiation Oncology. In my free time, I host my own sports podcast, play recreation basketball, and enjoy binge watching sit-coms. 


Russell Maxwell, MD

Russell Maxwell, MD

Raleigh, North Carolina is my hometown. Not too far from there, I completed my undergraduate studies in chemistry and biostatistics at the University of North Carolina at Chapel Hill. I then moved north to Charm City (Baltimore, Maryland) to attend medical school at Johns Hopkins. In between my medical training, I pursued a research fellowship to investigate glioblastoma immunotherapy approaches in both preclinical and clinical settings. Prior to joining the Radiation Oncology group, I completed an internal medicine internship at the Hospital of the University of Pennsylvania. I have various academic interests that include but are not limited to CNS malignancies, immunotherapy, and immune radiosensitization. When not in clinic, you can find me biking, cooking, or exploring the many neighborhoods and restaurants in Philadelphia with my wonderful girlfriend and dog.



Class of 2024

William Su, MD

William Su, MD

I grew up in Cary, North Carolina and then moved up north to attend Columbia University as a Science Research Fellow and for my undergraduate degree in biochemistry. I stayed in New York for medical school and attended the Icahn School of Medicine at Mount Sinai. I completed my internship in Internal Medicine at the Hospital of the University of Pennsylvania. My academic interests have included investigating head and neck cancers and better characterizing recurrences. During my free time, I enjoy spinning, running, skiing, and exploring new places in Philly with my dog.  


Jacob Trotter, MD

Jacob Trotter, MD

I was born in Portland, Oregon and raised in beautiful Las Vegas, Nevada. I completed my undergraduate studies in Neuroscience with a minor in Chemistry at Brigham Young University in Provo, UT following which I worked for a year performing thermodynamic research. I then took my family to Durham, North Carolina where I attended Duke University School of Medicine where I performed clinical research in stereotactic body radiation therapy for lung cancer and image-guided stereotactic radiosurgery for brain arteriovenous malformations. Prior to joining Penn's Department of Radiation Oncology, I completed an intern year in Internal Medicine at the Hospital of the University of Pennsylvania. Outside of medicine, I enjoy spending time with my amazing wife, dancing around my kitchen with my two energetic daughters as well as playing guitar, tennis, darts, ping-pong, softball and bowling.


Sana Dastgheyb, MD, PhD

Sana Dastgheyb, MD, PhD

I grew up in Virginia where I went to college to study Biomedical Engineering at the University of Virginia before completing my MD and PhD at Thomas Jefferson University in Philadelphia. Before joining the Penn Radiation Oncology Department, I completed my Medical Internship at the Hospital of the University of Pennsylvania. My medical and research interests are in palliative radiation therapy, photodynamic therapy, and non-oncologic applications of radiation therapy. Outside of work, I enjoy cooking, spending time with my family, and participating in local Philadelphia quizzo nights.


Nikhil Yegya-Raman, MD

Nikhil Yegya-Raman, MD

I grew up in Cherry Hill, NJ, and received my undergraduate degree in chemistry from Princeton University. Subsequently, I attended medical school at Rutgers Robert Wood Johnson, where I spent a dedicated year performing clinical research in lung and gastrointestinal cancers. Prior to joining the Department of Radiation Oncology, I completed an internship in the Department of Medicine at the Hospital of the University of Pennsylvania. Outside of work, I enjoy running, racket sports, cycling, and watching the Sixers/Eagles.


Eva Berlin, MD

Eva Berlin, MD

I grew up in Concord, Massachusetts and completed my undergraduate training at Brandeis University, where I majored in International and Global Studies with a minor in French and Francophone studies. During high school and college I also spent time living in Chile, India and France. I later attended medical school at the Icahn School of Medicine at Mount Sinai, where I dedicated a year to research in lung, breast and palliative radiation. I am particularly interested in the impact of contemplative practices such as mindfulness meditation on the well-being of patients undergoing cancer treatment.  I completed my internship in the Department of Medicine at the Hospital of the University of Pennsylvania before joining the Department of Radiation Oncology. Outside of work, I enjoy exploring Philly’s beautiful neighborhoods and parks with my husband and two sons.



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