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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

Evan Ryer, MD

Evan Ryer

Program Director

Robert Garvin, MD

Robert Garvin

Associate Program Director

Gregory Salzler, MD

Greg Salzler

Associate Program Director

James R. Elmore, MD

James Elmore
Director of Vascular Surgery 

Jeremy Irvan, MD

John Jeremy Irvan
Faculty Attending

Anthony Lewis, MD

Anthony Lewis
Faculty Attending

Neal Cooper, MD

Neal Cooper
Faculty Attending 

Geisinger Wyoming Valley Medical Center

Melissa A. Obmann, DO

Melissa Obmann
Director – GWV

Chris DeMaioribus, MD

Christopher DeMaioribus
Faculty Attending

Shivprasad Nikam, MD

Shivprasad Nikam
Faculty Attending

Boyoung Song, MD

Boyoung Song
Faculty Attending

Geisinger Community Medical Center

Gene Langan, MD

Langan
Director – Northeast Campuses 

John Kutz, MD

Kutz
Faculty Attending

David Phang, MD

David Phang
Faculty Attending
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