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College of
Health Sciences

Faculty

Geisinger vascular surgery consists of a diverse faculty, all with subspecialty interests, physician assistants, nurse practitioners, and a team of dedicated nurses. Our team is trained to care for vascular patients and is responsible for scheduling follow-up care, handling discharge paperwork and operating postoperative clinics, allowing our trainees to maximize their time and concentrate on learning.

Geisinger Medical Center

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Evan Ryer, MD
Program Director

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Robert Garvin, MD
Associate Program Director

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Gregory Salzler, MD
Associate Program Director

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James R. Elmore, MD
Director of Vascular Surgery 
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Jeremy Irvan, MD
Faculty Attending
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Anthony Lewis, MD
Faculty Attending
Neal Cooper
Neal Cooper, MD
Faculty Attending 

Geisinger Wyoming Valley Medical Center

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Melissa A. Obmann, DO
Director – GWV
Chris Demaioribus
Chris Demaioribus, MD
Faculty Attending
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Shivprasad Nikam, MD
Faculty Attending
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Boyoung Song, MD
Faculty Attending

Geisinger Community Medical Center

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Gene Langan, MD
Director – Northeast Campuses 
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David Phang, MD
Faculty Attending
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Alessandro Smeraldi, MD 
Faculty Attending
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