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Our team 

Our board-certified emergency medicine physicians and physician assistants are committed to providing exceptional training experiences in our emergency rooms and world-class simulation center. Their diverse backgrounds and practice settings help prepare you to practice autonomously in emergency departments of all sizes.  

EMPA program director

Brian Vike, PA-C

Portrait of physician assistant Brian Vike.

Brian has practiced in emergency medicine for his entire physician assistant (PA) career. His first position was with a Minneapolis metro area physician group where he completed their training program and subsequently worked in various emergency departments in Minnesota. After 5 years with this group, Brian joined Gundersen as an EMPA at the critical access hospital in Whitehall, Wis. Education has been a passion for Brian even prior to becoming a PA, and he has been involved with the EMPA Fellowship since the inaugural class. Brian holds a CAQ in emergency medicine and has since moved his practice to the Gundersen Emergency Department in La Crosse. 

Gundersen as an institution holds education at the heart of its mission, and there is a vibrant tradition of learning throughout the health system’s history. The EMPA fellowship is the sole emergency medicine-focused post graduate program here, and our fellows have the great fortune of benefiting from the tools and resources of Gundersen’s long-established educational culture. The diverse training opportunities within our program have allowed our graduates to succeed in any emergency department setting.
EMPA medical director & Emergency Services Medical Education director

Gabriel Marsh, MD

Dr. Marsh grew up in Park Falls, Wis. He received his Bachelor of Science degree from the University of Wisconsin-Madison. He attended medical school at Saint Louis University followed by an Emergency Medicine Residency at UW-Madison in 2011. His first full-time position was at Gundersen Health System where's he has always worked in Emergency Services. Dr. Marsh also flew with Med Flight and continued as faculty at the University of Wisconsin Hospital until 2014. He has been the Medical Director of Gundersen's EMPA Fellowship since 2020. He's also served as the Education Coordinator for Gundersen Emergency Services since 2019 and enjoys being an integral part of young learner’s medical education.

Fellowship program administrator

Mai Yia Vue

Instructional faculty

William Bishop, MD  

Emergency Medicine

Dan Cox, MD

Emergency Medicine, Emergency Services Ultrasound Coordinator 

Maude Kettenmann, MD 

Emergency Medicine 

Melissa Meinking, PA-C 

Emergency Medicine 

Mary Stone, PA-C

Emergency Medicine

Leah Thompson, MD 

Emergency Medicine 

Joseph Verzwyvelt, MD

Emergency Medicine 

Robert Zink, MD 

Regional director of Emergency Services, Gundersen Tri-County Hospital and Clinics


Why Gundersen

Aerial view of la crosse, wisconsin.

Call La Crosse Home

We have it all in La Crosse, Wis. Our vibrant city and region support your dream lifestyle with a welcoming community, culture and outdoor adventure.

Explore La Crosse
Single family home near Gundersen's campus.


Steps from our flagship medical center in La Crosse, our housing options allow you to enjoy the company of your family and the comradery of your colleagues.

View housing
Residents kayaking the Kickapoo river.

Prioritizing Your Wellness

As you learn how to become the clinician you aspire to be, we’ll provide space to prioritize your mind and body wellness, and reach the work-life balance you need.

Wellness opportunities
Contact our team

We are here to answer your questions. 

Email us

1900 South Ave.
La Crosse, WI 54601

(608) 782-7300

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