September 2026

NEUROSCIENCES

NORTHWESTERN MEDICINE NEUROSURGERY WELCOMES NEW RESIDENTS AND FELLOWS, HONORS GRADUATING TRAINEES

The Department of Neurological Surgery at Northwestern Medicine welcomes a new cohort of residents and fellows for the 2026 – 27 academic year while recognizing graduating trainees as they embark on the next phase of their careers. 
Incoming Neurosurgery Residents
Austin Hilvert, MD
Vanderbilt University School of Medicine
Austin Hilvert, MD, joins Northwestern Medicine Neurosurgery after completing his medical education at Vanderbilt University School of Medicine. He holds an undergraduate degree in neuroscience from The Ohio State University and earned an MBA from Vanderbilt. His research interests focus on healthcare economics and the cost implications of surgical care. Dr. Hilvert brings strong clinical engagement, professionalism and a collaborative spirit that will contribute positively to our residency program.
 
Aman Singh, MD
University of Rochester School of Medicine
Aman Singh, MD, earned his medical degree from the University of Rochester, where he studied philosophy, neuroscience and business. He was elected to Alpha Omega Alpha and has contributed extensively to neurosurgical research, including multiple first‑author publications. Dr. Singh has a strong interest in spine surgery and the socioeconomic aspects of healthcare delivery.
 
Kerrie Greene, MD, PhD
Yale School of Medicine MD/PhD Program
Keri Greene, MD, PhD, completed her undergraduate training at MIT in neuroscience and biomedical engineering and received honors including Sigma Xi recognition, before pursuing MD and PhD training at Yale School of Medicine. Her research interests include immune‑mediated blood–brain barrier modulation, neuro‑immunology, and long‑COVID. Dr. Greene’s academic rigor, leadership experience and scientific curiosity will be valuable additions to Northwestern Medicine Neurosurgery.
Recognizing the Graduating Class of 2026
Hanna Kemeny, MD
After completing undergraduate and medical training at Duke University and earning an MBA from Northwestern University, Dr. Kemeny developed a strong interest in spine surgery and outcomes-based research during residency. She will remain at Northwestern Medicine to pursue a Complex and Reconstructive Spine Fellowship.

Mikhaylo Krushelnytskyy, MD
Dr. Krushelnytskyy completed undergraduate studies at Washington University and earned his medical degree from Mayo Clinic. Following residency, he will join Legacy Spine and Neurological Specialists in Little Rock, Arkansas.
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Mark Youngblood, MD, PhD
Dr. Youngblood earned his undergraduate degree from Georgia Institute of Technology and completed both his medical and doctoral training at Yale University. His clinical and research interests focus on neurosurgical oncology. Following graduation, he will join the Northwestern Medicine faculty. 
Incoming Neurosurgery Fellows
The department also welcomes several physicians pursuing advanced subspecialty fellowship training.
  • Hanna Kemeny, MD, MBA, Complex and Reconstructive Spine Surgery Fellowship
  • Maryam Shahin, Complex and Reconstructive Spine Surgery Fellowship
  • Jed Robusto, MD, Skull Base Neurosurgery Fellowship
Recognizing the Outgoing Fellows
The department also recognizes fellows completing their advanced training programs and transitioning to the next stage of their careers.
  • Mohamed Alhantoobi, MD, International Fellowship
  • Alberto Benato, MD, International Fellowship
  • James Boddu, MD, Complex and Reconstructive Spine Surgery Fellowship
  • Daniel Oyon, MD, Skull Base Neurosurgery Fellowship
  • Gnel Pivazyan, MD, Complex and Reconstructive Spine Surgery Fellowship 

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