Current ONMM Residents

Catherine Batz, DO
Medical School
: West Virginia School of Osteopathic Medicine
Family Medicine Residency: Maine-Dartmouth Family Medicine Residency

Catherine was born and raised in Pittsburgh, PA and attended Saint Mary’s College in Notre Dame, Indiana where she earned a bachelor’s degree in biology, with minors in chemistry and Italian. While at Saint Mary’s, she studied abroad in Italy and cultivated an interest in foreign culture. After graduation, Catherine worked as a biochemistry lab tech at the University of Indiana School of Medicine and during that year found a love for yoga and kinesthetic movement. It was then that she decided to pursue a career in osteopathic medicine at the West Virginia School of Osteopathic Medicine.

Catherine has an interest in full-spectrum family medicine with an emphasis on women’s health, integrative medicine, preventive care, and osteopathic manipulative medicine. In medical school, Catherine deepened her understanding of osteopathy during her ONMM undergraduate fellowship year, and found joy sharing her passion with students. She hopes to continue teaching throughout her career in medicine. Catherine’s medical studies were also enriched by the opportunity to volunteer with the Himalayan Health Exchange in India, and she plans to pursue future opportunities in international medicine.

When Catherine isn’t doctoring, she enjoys cooking (she didn’t leave Italy without learning a thing or two!), gardening, biking, and spending quality time with her husband and her sweet dog.


Max Schaefer, DO
Medical School
: Marian University College of Osteopathic Medicine
Family Medicine Residency: Maine-Dartmouth Family Medicine Residency

Born and raised in Kalamazoo MI, Max considers his path to membership in the inaugural class at Marian University College of Osteopathic Medicine “a series of fortunate accidents.” Prominent among them was the award of a creative works grant from the Center for Undergraduate Research through the University of Notre Dame. As he neared completion of a liberal arts degree in Psychology from the University of Notre Dame, Max found himself weighing his options for life after college. Wanting to better understand the concept of the “American Dream” and how it might apply to him, he proposed to travel by car across 38 states to examine how our dreams are shaped and supported.  With only enough belongings to fit into a laundry basket, he camped and couch-surfed across America, conversed with friends and strangers, consumed books and films, and came to the epiphany that healthcare and education were the keys to his future. Fast forward eight years and Max is no longer studying the dream but living it. He is a certified yoga instructor and developed and taught a weekly yoga practice for the medical and nursing community at Marian University to cultivate wellness. He is the winner of several education scholarships; was twice voted the Marian University “Good Samaritan”; and was honored as the 2017 Marian University “Fellow of the Year.” Max helped to establish a pre-doctoral osteopathic teaching fellowship and was the inaugural teaching fellow as well as the representative to the National Undergraduate Fellows Association. During medical school he contributed his time to a number of community causes and events, including preparing meals at the local homeless shelter, teaching chair yoga at a local retirement/nursing home, and volunteering for campus-supported community outreach events.

Max has a passion for teaching, underserved populations, and full-spectrum family medicine. He is looking forward to refining his osteopathic manipulation skills and building relationships with his new community, patients, and health care team. When time allows, Max enjoys fishing, hiking, yoga, being outdoors, cheering on the Detroit Tigers, folk/bluegrass music, and spending time with his family and significant other.


Tsung-Yun Tzeng, DO
Medical School
: Rowan University School of Osteopathic Medicine
Family Medicine Residency: Fitchburg Family Medicine Residency

Tsung-Yun was born in Taiwan and immigrated to southern California with his family at a young age.  During his undergraduate years at UC Berkeley, he started his training in modern dance; medicine was not part of his plans at this point.  He had a back injury, and his rehabilitation stimulated an interest in the craft of healing.  He returned to professional dance and also began practicing as a massage therapist, which nurtured a curiosity about osteopathy.  To further develop his knowledge and skill as a clinician, he completed the post-baccalaureate program at Harvard University and enrolled at Rowan University School of Osteopathic Medicine.  Then, he matched to the UMass Fitchburg Family Medicine Residency to establish a foundation as a generalist for understanding and treating the whole patient.  He is excited to begin the next phase of his education at Maine-Dartmouth’s ONMM residency.