Director of Minimally Invasive Spine Surgery Program at the University of California San Francisco. #spinesurgery, both maximally and minimally.
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ALT The group of medical students, residents, and faculty who participated in the Spine Lab. Visiting professor Vincent Traynelis, MD, is also pictured among the participants.
ALT Vincent Traynelis, MD (center left) and UCSF spine neurosurgeon Lee Tan, MD (center right), instruct neurosurgery residents Joseph Chen, MD (left), and Jennifer Guidera, MD, PhD (right).
ALT Jang Won Yoon, MD, and PGY4 resident Mahmoud Elguindy, MD, PhD, smile at the camera while Elguindy holds a surgical tool.
ALT PGY4 resident Sravani Kondapavulur, MD, PhD (center), practices her surgical skills while two medical students watch.
ALT UCSF neurosurgeon Jang Won Yoon, MD, during an endoscopic spine surgery.
ALT UCSF spine neurosurgeon Jang Won Yoon, MD (left), looks at a computer monitor showing the view from the endoscopic camera during surgery.
ALT Arati Patel, MD, reaches for some surgical tools on a tray during a cervical 3-7 fusion and cervical 5-7 decompressive laminectomy.
ALT Jang Won Yoon, MD, and Arati Patel, MD, perform a cervical 3-7 fusion and cervical 5-7 decompressive laminectomy.
ALT Jang Won Yoon, MD, and Arati Patel, MD, perform a cervical 3-7 fusion and cervical 5-7 decompressive laminectomy.
ALT Anthony Lee, MD, PhD, performs a minimally invasive transforaminal lumbar interbody fusion (TLIF) surgery.
ALT Anthony Lee, MD, PhD, looks through a microscope during a minimally invasive transforaminal lumbar interbody fusion (TLIF) surgery.
ALT Lee Tan, MD, and Anthony Lee, MD, PhD, smile for a photo during a minimally invasive transforaminal lumbar interbody fusion (TLIF) surgery
ALT Jang Won Yoon, MD, presents his talk. The title of his slide reads, Long-term follow-up protocol. Praveen Mummaneni, MD, served as one of the moderator of the session.
ALT Graphic for Match Day 2026 announcing that Anita Kalluri, MD, from Johns Hopkins University, Young Joon Kim, MD, from Harvard Medical School, and Youssef Sibih, MD, form the University of California, San Francisco matched into UCSF Neurosurgery.
ALT Graphic showing the Phoenix skyline and mountains at sunset framed by saguaro cacti. Text over a purple background includes the names of the presentations by UCSF Neurosurgery faculty and trainees. Faculty: Jang Won Yoon, MD, Praveen V. Mummaneni, MD, Line Jacques, MD, Anthony DiGiorgio, DO. Trainees: Jay I. Kumar, MD, Alexa Semonche, MD, Vardhaan Ambati, Michael Tawil, Hunter Yamada, Paul McMillan Villalobos.
ALT Jang Won “Jon” Yoon, MD.
