Meet Our Residents

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Chief residents of the Mayo Clinic Emergency Medicine Residency — 2024-2025 Chief Residents

From the chief residents

Welcome to Mayo Clinic's Emergency Medicine Residency! As chief residents, we are excited to share why we love training in Rochester, Minnesota. At Mayo Clinic, the needs of the patient truly do come first, and a spirit of collegiality and camaraderie make coming to work every day a joy.

Our residents see and manage an incredibly wide breadth of patient pathology. As trainees, we are uniquely situated to see it all, from the “bread and butter of emergency medicine” to extremely complex patient issues. As Emergency Medicine physicians, we manage all airways in our ED and alternate leading trauma resuscitations with our surgical colleagues every other day.

Our program provides support for nearly any activity that will help you reach your goals as an educator, community physician or researcher. Our residents hold national and regional leadership positions within ACEP, EMRA, and ABEM. Residents participate in three invaluable cadaver-based lab experiences yearly, focusing on airway management, critical procedures, and management of upper extremity injuries. Funding for research and travel to present at conferences is widely available through both departmental and institutional grants. Each year our interns go to a national conference as a group for learning and bonding experience.

Residents with specific interests have opportunities to tailor their educational experiences with our ample elective time to nearly any career aspiration and interest, and we are supported in rotating at places such as Shock Trauma and Phoenix Children's Hospital.

Last, and most important, our program is truly like a family. Our faculty and staff are leaders in Emergency Medicine; but more importantly, they know us as individuals, watch out for us, and are willing to customize our experiences to help us maximize our potential. Our program and institution value our wellness both within the hospital and at home with our families. We are fully supported to start or expand our families during training and the institution provides paid maternity and paternity leave as well as access to lactation rooms while on-shift.

Mayo Clinic's logo of three shields symbolizes the importance the institution places on patient care, education, and research. Each shield is of value to residents in training across the nation and most certainly encompasses what Mayo Clinic is all about. We are thrilled to be a part of this legacy and excited to meet and share this with all of you during the interview season!

Taylor Christian, M.D., M.S., Erin Eggum, D.O., M.H.A., Steven Mahnke, M.D.
2024-2025 Emergency Medicine Residency Chief Residents

Our residents

Our residents come from medical schools around the U.S. and outside the country. Learn more about them and what they have to say about our program.

Class of 2025
Class of 2026
Class of 2027

Class of 2025

	Ethan Bryce, M.D. Hometown: Thatcher, AZ Medical school: University of Arizona College of Medicine-Tucson Hobbies: Spending time with family, basketball, and fishing Professional interests: EMS, wilderness medicine, and rural medicine Why Mayo: This is the number one hospital in the world. On interview day, Mayo stood out in regard to job and fellowship placement. Finally, Rochester is an ideal place to raise a young family.
	Taylor Christian, M.D., M.S. Hometown: Columbus, MS Medical school: University of Mississippi School of Medicine Hobbies: Cooking, traveling, and spending time with family Professional interests: Social medicine, specifically health care disparities and trauma/critical care medicine Why Mayo: I chose Mayo Clinic because of its values and commitment to excellence in patient care. There is an abundance of mentors with interests within and outside of medicine. I was also sold on the family-friendliness and comradery among residents and faculty.
	Erin Eggum, D.O., M.H.A. Hometown: Austin, MN Medical school: Des Moines University College of Osteopathic Medicine Hobbies: Spending quality time with my family and two black labs, Maddy and Josie, yoga, hiking, Reese Witherspoon's book club, board games, and quilting Professional interests: Community emergency medicine, emergency medicine leadership and administration, quality improvement, mentorship, women's health, and pain medicine Why Mayo: Mayo provided me the opportunity to learn from the best in the nation and provide care to my home community. The resources and networking available here allow for unparalleled opportunities to explore my interests with experts in the field. Additionally, it was evident from the first day of my rotation that this program is committed to the residents. The people here, both in emergency medicine and every other specialty, are fantastic, and I am happy to be in this program every single day.
	Daniel Fiterman-Molinari, M.D. Hometown: Porto Alegre, Brazil and Ashdod, Israel Medical school: Universidade Federal do Rio Grande do Sul, Brazil Hobbies: Surfing, soccer, and playing drums Professional interests: Point-of-care ultrasound, airway, and medical education Why Mayo: Mayo Clinic is an outstanding institution, with an amazing faculty, known for collaboration between doctors from different specialties with the goal to offer patients the highest level of care available in the world. It offers a unique opportunity to learn from emergency medicine specialists and other specialists as well.
	Hans Gao, M.D. Hometown: Philadelphia, PA Medical school: Northwestern University Feinberg School of Medicine Hobbies: Cycling, swimming, skiing, hiking, literature, history, and exploring the outdoors Professional interests: Education, leadership and administration, research, global health, ultrasound, EMS, and disaster medicine Why Mayo: I was inspired by the stories of Dr. Charles Mayo and Dr. Henry Plummer. Their dedication and transformative vision of health care shaped Mayo Clinic into the collaborative and world-renowned institution it is today. Emulating these two heroes, I followed their path from Northwestern University to Mayo Clinic. The integrated healthcare networks here, when combined with the innovative culture and the "Mayo Magic," represent what exemplary, modern healthcare should be.
	Francisco Lazaro-Paulina, M.D. Hometown: Ottawa, Canada, and Cochabamba, Bolivia Medical school: Universidad Privada del Valle, Bolivia Hobbies: Rugby, Brazilian Jiu Jitsu, backpacking/traveling, and intramural sports Professional interests: Critical care, prehospital medicine, and wilderness/austere medicine Why Mayo: It's a long story! There are incredible teaching, resources, and opportunities that are available here at Mayo Clinic. I'm happy to be here!
	Dylan Leonard, M.D. Hometown: Anoka, MN Medical school: Saint Louis University School of Medicine Hobbies: Weightlifting, golfing, and exploring restaurants Professional interests: Ultrasound, education, and healthcare disparities Why Mayo: The physicians that practice at Mayo provide a level of care that incorporates evidence-based medicine with the patient's goals and lifestyles to provide treatments that work. This care is provided through a team that is supportive of each other, those in other specialties, those in other health care roles, as well as the patient. I hope by learning in this culture that I can learn these values and incorporate them into my own practice of medicine after graduation.
	Steven Mahnke, M.D. Hometown: Kelso, WA Medical school: Washington State University Hobbies: Snowboarding, golfing, hiking, and sleeping Professional interests: Community medicine and wilderness medicine Why Mayo: It is the world-famous Mayo Clinic! They were very open, transparent, and welcoming on my interview trail. The faculty is absolutely incredible and my co-residents are amazing. Hard to beat that. Also, I like the condiment. So versatile! Wow!
	Jacob Morey, M.D., M.B.A. Hometown: Baxter, MN Medical school: Icahn School of Medicine at Mount Sinai Hobbies: Skiing, hiking, and sitting on pontoons Professional interests: Healthcare administration and operations, health economics and finance, and healthcare delivery models Why Mayo: Mayo Clinic is consistently rated as the best health system in the world. I wanted to train here to be at the forefront of medicine.

Class of 2026

	Nicole M. Entenmann, D.O. Hometown: Sartell, MN Medical school: A.T. Still University-Kirksville, MO Hobbies: Rollerblading, soccer, hiking, being active outdoors with my dog, Willow, working out, spending time with family and friends, gardening and canning, traveling, and finding the best breakfast food in town Why Mayo: When I started working as an EMT Paramedic at Gold Cross Ambulance, now Mayo Clinic Ambulance, I had a long-standing dream to come back to Mayo Clinic as a physician, full circle. I wanted the chance to grow, become the best physician I could be, and learn beside great EM leaders. In my fourth year of medical school, I rotated at Mayo Clinic and learned the physicians put patient care, shared decision-making, and empathy above all and teaches its residents and staff to do the same. I also love that the program offers a variety of electives and opportunities to help me explore my interests. I am happy to be back in Minnesota to finish out my training and spend time with my family and friends.
	Lemuel Gordon-Hackshaw, M.D. Hometown: Jamaica Queens, NY Medical school: University of Connecticut School of Medicine Hobbies: Doing anything at all with my wife, kicking back with friends and family, weightlifting, and Christmas Why Mayo: The people. I did my away rotation here and have never worked with a set of attendings who were so kind and so dedicated to education. Mayo also has a dedication to wellness, and it shows. I wanted a program that would not only challenge and train me well but would also give me unlimited professional and leadership opportunities, lifelong friends, and a good work-life balance. Mayo is that place for me, and it did not take long for Mayo to feel like home.
	Sarah Hopfer, M.D. Hometown: Family is in the Scranton area, PA Medical school: Indiana University School of Medicine Hobbies: Natural history, exploring the world around me, hiking, watching the weather, gymnastics, and philosophy Why Mayo: Mayo Clinic is built on the ideas of patient-centered medicine and radical curiosity, and it provides the opportunity for residents to learn the different aspects of their trade from experts in their fields.
	Carrie Johnson, M.D., Ph.D. Hometown: Montevideo, MN Medical school: Cleveland Clinic Lerner College of Medicine Graduate school: University of Michigan Hobbies: Tennis, hockey, basketball, softball, swimming, cycling, watching college football (Go Blue!), spending time at the lake, cooking, baking, eating, naps Professional interests: Critical care, sports medicine, rural medicine, medical education, healthcare advocacy policy and leadership Why Mayo: I never had the chance to rotate here, but I knew the reputation of Mayo Clinic. When I interviewed, it was clear the people were of excellent clinical knowledge and character. I wanted to be at a place that saw me as more than just labor but as a trainee and colleague worth investing in and educating. Mayo invests its resources in teaching and training us. The opportunity to have ample elective time in a three-year residency, and to do it anywhere in the country and the world, is an example of that. The first orientation month, with multiple robust hands-on training sessions, are further examples. The faculty and support staff care about our training and do so in a constructive manner. The opportunity to do rotations at the main campus in Rochester (with longitudinal pediatrics), at Mayo Clinic in Arizona and Jacksonville, and at rural community sites, offered the opportunity to get the breadth of EM training I was seeking to be able to robustly care for patients in all settings and with all types of pathology.
	Brian Obritsch, D.O. Hometown: Bismarck, ND Medical school: Idaho College of Osteopathic Medicine Hobbies: Snowboarding, backcountry backpacking, big game hunting, mountain biking, playing guitar, reading, taking my golden retriever Kona for walks, woodworking, and traveling Why Mayo: There is a reason Mayo Clinic is consistently ranked as one of the best hospitals in the world as everything they do is focused on "putting the needs of the patient first." This culture of excellence really resonated with me and is something I strive to keep at the forefront of each patient encounter. I appreciate the ability to become well-rounded and train in both an academic ED setting with its resources, education, and availability of on-call consultants as well as the community ED setting practicing with limited amenities. This academic community model provides exposure to a full spectrum of cases from the occasional zebras, to challenging traumas to the sick bread-and-butter patients with everything in between. Overall, I believe this program would offer me the training to become the best EM doctor I can be!
	Tim Shen, M.D. Hometown: San Diego, CA Medical school: University of Chicago, Pritzker School of Medicine Hobbies: Soccer, Basketball, pickleball, cooking, and dabbling in sewing Why Mayo: From a systems perspective, Mayo is the smoothest running hospital I have seen. Two things follow from this: the needs of the patient are truly prioritized, and residents are able to focus all their energy on learning excellent clinical medicine. As an emergency medicine resident, I also have the opportunity to learn from and work with some of the most knowledgeable individuals in the world from each specialty.
	Kate Skeens, M.D. Hometown: Owensboro, KY Medical school: University of Louisville School of Medicine Hobbies: Photography, walking my dog, and enjoying the beach Why Mayo: Mayo Clinic stood out as a program that prepared residents to enter clinical practice anywhere by offering multiple training sites and opportunities. I wanted a training program that emphasized the importance of patient care and valued the patient's experience.
	Olivia Stanier, M.D., M.S. Hometown: Toronto, Canada Medical school: Loma Linda University School of Medicine Hobbies: Exploring nature, weightlifting, hanging out with my cat, relaxing with friends, and playing piano Why Mayo: The residents and faculty have created a fantastic culture to help learners succeed. There are top-notch educational opportunities from consultants who are experts in their field and there is a diverse amount of pathology to learn from. Rochester itself is beautifully quaint; with lots of parks and a river passing through, there's always something to do outside.
	Austin Walker, M.D. Hometown: Pacifica, CA Medical school: University of California San Francisco Hobbies: Meditation, gaming, biking, drumming, and backpacking Why Mayo: Low-ego high-performance medicine. Down-to-earth people who foster a fantastic environment for training. Abundant support for any professional interests. Alumni have gone on to practice in almost every setting and unanimously endorse feeling well-equipped to do so.

Class of 2027

	Kylea Barnes, M.D. Hometown: Maple Grove, MN Medical school: Chicago Medical School at Rosalind Franklin University Hobbies: Reading (mostly fantasy and thrillers), baking, plants, working out, scuba diving Why Mayo: I wanted to find a place that I would not only learn a lot and have a high volume of patients, but also where I would feel like I was a part of a tight knit community and actually wanted to be friends with my co-residents outside of work. Mayo IS the perfect blend of all of that. There is no question that Mayo has the best of the best to learn from. Bread and butter, trauma, super medically complex patients? Mayo has it all and a lot of it. From my interview day I knew the people here care about each other and exude an environment that is fun, non-judgmental, and supportive.
	Rosanna Chorro Bas, M.D. Hometown: Xàbia, Alicante, Spain Medical school: Universitat de Valencia Hobbies: Animal rescue, developing medical simulators with my husband and brother, running, CrossFit, and home remodeling. Why Mayo: I chose Mayo Clinic for its excellence in education and collaborative culture. The infrastructure and resources available here are unparalleled, offering access to state-of-the-art technology and a wide variety of complex clinical cases, providing exceptional learning opportunities. Additionally, the opportunity to engage in innovative research projects and collaborate with leaders in the field was a significant motivation for me. The personalized attention to both professional and personal development has made Mayo Clinic feel like a second family to me.
	Byrne Curl, M.D. Hometown: Bismarck, ND Medical school: University of North Dakota Hobbies: Hockey, golf, road/mountain biking, camping, hunting/fishing, really anything outside! Why Mayo: I did a visiting rotation here as a medical student and really loved the people and the work environment. I felt that I would get great training and be well prepared for my future endeavors in medicine.
	Rebecca Falzon, M.D. Hometown: Plymouth, MI Medical school: Central Michigan University Hobbies: Traveling, exploring new cuisines, enjoying the outdoors (skiing, camping, hiking), playing the violin, spending time with my family and friends Why Mayo: The faculty and support staff at Mayo are exceptional people who care about resident education and well-being. The curriculum focuses on fostering well-rounded clinicians who are skilled and prepared to work in any clinical environment.
	Amanda Holm, M.D. Hometown: Pipestone, MN Medical school: University of Minnesota Medical School Hobbies: Hiking, kayaking, camping, running, leatherworking, anything I can do outdoors with my family and dog Why Mayo: Having grown up in rural Minnesota, Mayo Clinic was the place to go for the best care. While interviewing with Mayo, I found that this excellence extended into the emergency medicine residency as well. All of the residents were very knowledgeable, but more importantly, they all seemed genuinely happy. Mayo provides us the support to become competent emergency providers in a variety of settings, while also supporting our wellness and work-life balance. As someone who plans to return to a rural emergency department, the opportunity to work at the rural health system sites are also invaluable learning opportunities to understand care at single coverage, low resource emergency rooms.
	Obadi Obadi, M.D. Hometown: Addis Ababa, Ethiopia and Atlanta, GA Medical school: Medical College of Georgia Hobbies: I enjoy traveling and exploring new countries, cultures, and cuisines (ask me about my most recent travel adventures the next time you see me). I also enjoy watching Judge Judy (Judy Justice)! Why Mayo: Mayo Clinic is world-renowned for a reason, and the reasons became clear to me during my interview. Everyone at Mayo is deeply committed to the institution's vision and mission, which is evident not only in their treatment of patients but also in their interactions with each other. The motto "The needs of the patient come first" is not just a slogan on the website. It truly manifests in the day-to-day operations of the Mayo Clinic. It is no surprise that patients travel from all over the world to receive treatment here, which is particularly interesting to me as someone passionate about international medicine. The cherry on top was that everyone I met during my interview was genuinely nice and happy!
	Sam Sayed, M.D. Hometown: Arlington, TX Medical school: Burnett School of Medicine TCU Hobbies: Basketball, billiards, golf and spending time with my daughter, Sophie. Why Mayo: I chose to do my residency at Mayo Clinic because of its reputation for excellence and innovation in patient care. The institution's emphasis on a high-performance, low-ego, and collaborative environment aligns perfectly with my professional values and aspirations. At Mayo, I can learn from world-class experts who prioritize teamwork and humility, ensuring the best outcomes for patients through a truly integrated and supportive approach.
	Meaghan Sievers, M.D. Hometown: Gary, SD Medical school: University of South Dakota Hobbies: Spending time with family and friends and it's bonus points if it's at home on the lake! Taking care of my plant babies, anything outside in the sun (pretty sure I'm solar charged just like my plants), live music, skiing, watching NCAA gymnastics, celebrating anything and everything-especially my people, birthdays and Christmas Why Mayo: Mayo was a household name for me growing up with several loved ones receiving their own medical care here. On the other end of things, I was able to see how Mayo not only gave patients and their families hope but did so with such compassion and heart which is ultimately what made all the difference. I knew that I wanted to be a part of that- to be able to have an impact like that. Having the opportunity to train here and learn from world-class physicians and educators is an incredible honor, and I am so looking forward to taking all that I learn here to benefit my future patients. Beyond that, Mayo has truly unlimited opportunities available to you as a trainee, and I am so excited to take advantage of as many of these opportunities as I can!
	Lisa Viltz, M.D. Hometown: San Diego, CA Medical school: University of Colorado School of Medicine Hobbies: Rock climbing, travel, skiing, exercise, reading, baking, and most importantly, spending time with my partner, our dog, and our two cats. Why Mayo: When my mom was in college, she worked for a physician who trained at Mayo. I grew up hearing stories about how incredible Mayo Clinic is, and how it's at the forefront of medicine and research. Over the years, I've had family members, friends, and colleagues who have gone to Mayo in their times of need and had phenomenal experiences as patients at Mayo. I feel extremely lucky to have the opportunity to train at a hospital that has had such a positive impact on countless lives, and I truly believe I'll receive the best training in the country here.