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Meet Our Fellows

Our fellows and faculty foster a collegial environment and education-focused culture that provides an inclusive learning experience. Training can be challenging, but our program is close-knit and each resident brings a dedication to providing stellar patient care as well as a collaborative learning experience.

Meet our fellows and learn why they chose Mayo Clinic's Hematology and Medical Oncology Fellowship in Rochester, Minnesota.

Brittany Kimball, M.D.

Brittany Kimball, M.D.

What aspects of the Mayo Clinic fellowship do you feel are unique: A hallmark of Mayo Clinic’s fellowship program is its fellow-led continuity clinic, a rare feature among academic fellowships, which allows us to build meaningful, longitudinal relationships with patients under the mentorship of disease-specific, world-renowned faculty. Equally distinctive is the flexibility to shape your own training. Whether your interests are broad or highly specialized, accessible mentors provide support and resources. For example, my interest in adolescent and young adult cancer care and survivorship has been met with unique opportunities to participate in clinical care, national committees, and research, which have allowed me to pursue my passion and cultivate a meaningful niche in this field.

More importantly, mentorship has expanded my sense of what’s possible. It has given me the confidence to pursue ambitious ideas, supported my success in applying for grants, and helped me navigate opportunities for national presentations and collaboration.

Hometown: Circle Pines, MN
Residency: University of Minnesota

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Olisaemeka Ogbue, M.B.B.S.

Olisaemeka Ogbue, M.B.B.S.

Tell us about mentorship in fellowship: Mentorship has been a key part of shaping my path as a physician-scientist during fellowship. At Mayo Clinic, I’ve been fortunate to work with mentors who not only bring deep expertise, but who are genuinely invested in my growth. Their guidance has helped me think more clearly about my research direction and how to translate clinical questions into meaningful studies.

More importantly, mentorship has expanded my sense of what’s possible. It has given me the confidence to pursue ambitious ideas, supported my success in applying for grants, and helped me navigate opportunities for national presentations and collaboration.

Hometown: Nnobi, Anambra, Nigeria
Residency: Cleveland Clinic Foundation/Fairview

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Dhauna Prasad Karam Prasad, M.B.B.S.

Dhauna Prasad Karam Prasad, M.B.B.S.

What drew you to Mayo Clinic? The outstanding values, medical education, and the exceptional people drew me to Mayo Clinic in 2018, when I joined Mayo Clinic Health System practice as an internist. Since then, I have grown as a person and physician, transitioning to the Hematology and Medical Oncology Fellowship in 2023. The excellent teachers here shape my life for the better and I will be forever grateful to the institution for creating this place of magic!

Hometown: Madurai, Tamil Nadu, India
Residency: Rosalind Franklin University of Medicine and Science/Chicago Medical School

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Jabra Zarka, M.D.

Jabra Zarka, M.D.

What aspects of the Mayo Clinic fellowship do you feel are unique? For me, the continuity clinic is the heart of what makes Mayo Clinic’s fellowship unique. It’s where I learned what it really means to be a hematologist-oncologist. Early on, making decisions for my own patients was intimidating, but that responsibility is exactly what built my confidence. I became their primary oncologist, built real relationships, and came to understand how meaningful that trust is. It still amazes me that patients come to Mayo and see ME as their doctor. Knowing I’ve had a real impact on someone’s cancer journey is hard to put into words. Just as special is the culture. Mayo Clinic has a humility and sense of purpose you feel everywhere, and people from all over the world come to Rochester to be part of it. Mayo Clinic hasn’t just trained me—it has fundamentally shaped the kind of oncologist I hope to be.

Hometown: Dhour Shweir, Mount Lebanon, Lebanona
Residency: University of Pittsburgh Medical Center

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Class of 2026

Erica Andres, M.D.

Erica Andres, M.D.

Residency: Hospital of the University of Pennsylvania

Ryan Augustin, M.D.

Ryan Augustin, M.D.

Hometown: Eagan, MN

Residency: University of Pittsburgh Medical Center

Why Mayo: Mayo provides one-on-one mentorship with disease-specific experts, unmatched administrative support, unique autonomy in a fellow-run clinic, and an overall immersive clinical experience.

Isla Johnson, M.D.

Isla Johnson, M.D.

Residency: Mayo Clinic, Rochester, MN

Dhauna Prasad Karam, M.D.

Dhauna Prasad Karam, M.D.

Hometown: Madurai, Tamil Nadu, India

Residency: Rosalind Franklin University of Medicine and Science/ Chicago Medical School

Why Mayo: Growing up in India, I have always looked up to Mayo Clinic as the place where people go for "Medical Miracles." So when I was pursuing my residency in Chicago, I was constantly evaluating opportunities at Mayo Clinic. Initially, I joined the Mayo Family as an Internal medicine physician and experienced the extensive research advances and unparalleled teamwork firsthand. Also, the ability to learn from world renowned disease experts accentuated my dream of being a trainee at Mayo. Hence it was natural that I chose to pursue a hematology oncology fellowship at mayo Rochester and the learning has been extraordinary. You know you made the right choice when you are learning from professors who are on the cover page of renowned hematology oncology textbooks every day! This is where guidelines are written, drug discoveries are made, above all patients are treated with utmost respect and compassion. I am grateful to be a trainee here and will make the choice again anytime.

Brittany Kimball, M.D.

Brittany Kimball, M.D.

Hometown: Circle Pines, MN

Residency: University of Minnesota

Why Mayo: I chose Mayo Clinic because of the welcoming atmosphere. I appreciated the opportunities for mentorship. I was also drawn to the format of the continuity clinic which promotes true continuity with our fellow patients.

Savannah Liddell, M.D.

Savannah Liddell, M.D.

Hometown: Orlando, FL

Residency: Mayo Clinic, Rochester, MN

Why Mayo: The combination of excellent compassionate clinical training with vast research opportunities led me to choose Mayo.

Rosalyn Marar, M.D

Rosalyn Marar, M.D

Residency: University of Nebraska Medical Center

Nicole McLaughlin, M.D.

Nicole McLaughlin, M.D.

Hometown: Lino Lakes, MN

Residency: Mayo Clinic, Rochester, MN

Why Mayo: Emphasis on clinical skills and experience, autonomy in managing own patient panel, location/closeness to family. 

Syeda Mina, M.B.B.S.

Syeda Mina, M.B.B.S.

Hometown: Arizona 

Residency: Mayo Clinic, Phoenix, AZ

Why Mayo: For its values, reputation, and mentorship availability.

Clifford Csizmar, M.D., Ph.D.

Clifford Csizmar, M.D., Ph.D.

Hometown: Sandypoint, ID 

Residency: Mayo Clinic, Rochester, MN

Why Mayo: I chose Mayo Clinic for the unparalleled combination of patient care, research, and educational opportunities. Mayo Clinic cares for local, national, and global patients, thereby providing a comprehensive exposure to diverse pathologies. Importantly, fellows serve as the primary hematologist or oncologist for their own patient panel, which enables longitudinal relationships with patients and families while also enriching the educational experience. There is also robust institutional and extramural support for basic, translational, and clinical research, all of which are bolstered by renowned and enthusiastic mentors. As part of the Clinician Investigator Training Program, the fellowship was readily able to accommodate my protected time for bench research. Moreover, the fellowship maintains a keen focus on education, with didactic sessions led by experts in each subspecialty. Indeed, graduates from the fellowship are well equipped to transition into general community and sub-specialized academic practices alike. Finally, these opportunities are provided in a beautiful town with a low cost of living and no traffic, which help facilitate an excellent work-life balance. I would happily choose Mayo Clinic for my residency and fellowship training again!

Class of 2027

Aldo Acosta Medina, M.D.

Aldo Acosta Medina, M.D.

Hometown: Mexico City, Mexico

Residency: Mayo Clinic, Rochester, MN

Why Mayo: Mentorship and excellence of care in hematologic disorders including strength in classical heme + malignant heme and BMT.

Jonathan Day, M.D., Pharm.D.

Jonathan Day, M.D., Pharm.D.

Hometown: St. Elmo, IL

Residency: University of Iowa

Why Mayo: Mayo combines world class resources and mentorship with the welcoming atmosphere of the Midwest. I felt that everyone here was invested in the mission to provide the best care possible and to help trainees grow as clinicians, educators, and researchers.

Ayo Falade, M.D., M.B.A.

Ayo Falade, M.D., M.B.A.

Hometown: Akure, Ondo-State, Nigeria

Residency: Mass General Brigham Salem Hospital

Why Mayo: The opportunities that Mayo Clinic offers are unmatchable. I chose Mayo Clinic because of the program's emphasis on clinical competency, the opportunity to teach, dedicated mentorships, and involvement in impactful research that improves patient outcomes. Mayo Clinic offers me everything that I hope for in a training institution. Finally, everyone here has been super nice! From the janitor to the department head!

Yoshito Nishimura, M.D., M.P.H.

Yoshito Nishimura, M.D., M.P.H.

Residency: University of Hawaii

Hometown: Honolulu, HI

Why Mayo: Academic environment with great mentors.

Olisaemeka Ogbue, M.B.B.S.

Olisaemeka Ogbue, M.B.B.S.

Hometown: Nnobi, Anambra, Nigeria

Residency: Cleveland Clinic Foundation/Fairview

Why Mayo: Ultimately, I chose the Mayo Clinic for its world-class, state-of the-art cancer care and the collegial, collaborative spirit of its staff. I was thrilled by the prospect of my own continuity clinic panel of patients which will enrich my skills for independent practice.

Emma St. Martin, M.D.

Emma St. Martin, M.D.

Hometown: Los Angeles, CA

Residency: Stanford University

Why Mayo: Having gone to medical school at Mayo, I knew that the supportive culture, close mentorship from world experts in hematology & oncology, dedicated focus on patient care, and broad research opportunities within the program are all top-notch and I was so excited to return for my fellowship training. I was also drawn back to MN because of the proximity to my husband’s family and the ease of living in Rochester with our young children. Mayo is the perfect place for me professionally and personally.

Michael Storandt, M.D

Michael Storandt, M.D

Hometown: Moorhead, MN

Residency: Mayo Clinic, Rochester, MN

Why Mayo: There were a few reasons to choose Mayo. First and foremost, the people. The faculty and other fellows are incredibly kind and supportive. Additionally, Mayo places a strong emphasis on high quality clinical training at an academic center, which prepares you to practice in any setting after graduation.

Jana Wieland, M.D.

Jana Wieland, M.D.

Hometown: Oldenburg, Germany / Honolulu, HI

Residency: Mayo Clinic, Rochester, MN

Why Mayo: I chose Mayo for the amazing clinical and research opportunities and the chance to learn from leaders in the field. It really stood out to me as a place that combines world-class training with a strong focus on patient care, education, and collegiality.

Alexander Xiao, M.D., M.B.A.

Alexander Xiao, M.D., M.B.A.

Hometown: New York City, NY

Residency: Mayo Clinic, Rochester, MN

Why Mayo: I chose Mayo Clinic for fellowship because I completed my residency here and experienced firsthand the extraordinary culture of collaboration, compassion, and clinical excellence. It felt natural to continue my journey in a place where I’ve grown so much, both professionally and personally. Coming from NYC, I have also genuinely appreciated living in Rochester and experiencing the joys and conveniences of smaller-town living.

Jabra Zarka, M.D.

Jabra Zarka, M.D.

Hometown: Dhour Shweir, Mount Lebanon, Lebanon

Residency: University of Pittsburgh Medical Center

Why Mayo: I've always been intrigued by the Mayo Clinic. Growing up, even back home, it was known to me as the best hospital in the world. After interviewing here and meeting incredibly down-to-earth mentors, I was struck by the institution's deep commitment to patient-centered care and its strong support for trainee growth and career development. I'm truly grateful for the opportunity to experience the "Mayo way" firsthand.

Aamod Dekhne, M.D., Ph.D.

Aamod Dekhne, M.D., Ph.D.

Hometown: West Bloomfield, MI

Residency: Mayo Clinic, Rochester, MN

Why Mayo: I, too, enjoy placing the needs of the patient first.

Yuan Yao, M.D., M.S.

Yuan Yao, M.D., M.S.

Hometown: Tianjin, China

Residency: Mayo Clinic, Rochester, MN

Why Mayo: Excellent clinical training with fellow's own patient panel, brilliant staff who are amazing teachers and mentors, and unparalleled support for research.

Class of 2028

Deandra Chetram Kern, M.D.

Deandra Chetram Kern, M.D.

Hometown: Pembroke Pines, FL
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I was truly impressed by Mayo Clinic’s supportive and friendly culture during my three years of internal medicine residency training and chief year. I knew there was no better place to gain exceptional clinical, research, and medical education experience, all while having phenomenal mentorship and guidance.   

Christopher Ehret, M.D.

Christopher Ehret, M.D.

Hometown: Dallas, PA
Residency: Gundersen Health System
Why Mayo: Mayo Clinic offers an unparalleled combination of clinical training excellence alongside world-renowned providers, expansive research and career growth opportunities, a warm and inviting collegial atmosphere, and most importantly, an ethos that places our patients’ care above all else.

Robert Haemmerle, M.D.

Robert Haemmerle, M.D.

Hometown: Downers Grove, IL
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I was looking for a program that would both prepare me well clinically and provide excellent research opportunities. I also love the mission of Mayo Clinic and the commitment to doing what is best for the patient. I saw that throughout residency and wanted to continue my training in that environment. There is also a strong culture of respect and commitment to quality teaching. My family loves Rochester, and we have been so well supported by our friends here.

Jack Korleski, M.D.

Jack Korleski, M.D.

Hometown: Newark, DE
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I chose Mayo Clinic due to the excellent patient care and opportunities to work with world-class mentors.

Bridget Kuhn, M.D.

Bridget Kuhn, M.D.

Hometown: Sioux Falls, SD
Residency: Cleveland Clinic
Why Mayo: Mayo Clinic combines top-tier research and clinical training with mentorship from world experts in the field, all within a welcoming environment that values patient care, collaboration, and learning.

Jordan Nunnelee, M.D.

Jordan Nunnelee, M.D.

Hometown: Los Angeles, CA
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I wanted to continue learning through the collaborative and patient-centered approach here at Mayo Clinic, especially in the hematology and oncology fields where these principles are even more vital.

Mathias Palmer, M.D.

Mathias Palmer, M.D.

Hometown: Westlake, OH
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I was at Mayo Clinic for residency and had the opportunity to work with many of the fellows and was constantly impressed with the quality of the training and the support of the program. I initially came to Mayo Clinic because I wanted to be part of a community where everyone enjoyed working with one another and collaborated to better healthcare. I have loved my time at Mayo Clinic and am so thankful that I get to stay here for the remainder of my training.

Vikram Puram, M.D.

Vikram Puram, M.D., M.S.

Hometown:Edina, MN
Residency: Stanford University
Why Mayo: Excellent clinical training, support, and discussions with other fellows.

Robb Scheel, M.D.

Robb Scheel, M.D.

Hometown: Tulsa, OK
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I chose to stay at Mayo Clinic for fellowship because I had a wonderful experience here during IM residency. I loved the kind, collaborative culture, and the strong commitment to delivering exceptional patient care. There are also broad, personalized learning opportunities that can be tailored to my specific interests, along with ample research opportunities in any area. On top of all that, I really enjoy living in Rochester—it’s a wonderful place to raise a family with small children, so staying was certainly a big plus.

Nick Steinauer, M.D.

Nick Steinauer, M.D., Ph.D.

Hometown: Omaha, NE
Residency:  Mayo Clinic, Rochester, MN
Why Mayo: Highly ranked and renowned institution, geographic location.

Dongni Yi, M.D.

Dongni Yi, M.D.

Hometown: Chengdu, Sichuan
Residency: Mayo Clinic, Rochester, MN
Why Mayo: I chose to stay at Mayo Clinic after residency because of the strong and meaningful connection I’ve built with my research lab. Over the past few years, the lab has become an academic home for me – one where I feel intellectually challenged, deeply supported, and constantly inspired.