Faculty, Fellows & Staff

Meet Our Family

Timothy Livett, MDTimothy Livett, MD (1st year)
Tim grew up in Texas and Alaska. He received his medical education at the University of Minnesota before a general pediatric residency at Nationwide Children’s Hospital in Ohio. He joined the University of Wisconsin endocrinology department for fellowship because of the focus on ongoing education and the cooperative atmosphere between the faculty and staff. His interests include diabetes (and diabetes technology) as well as general endocrinology. He likes Madison most for the nearby outdoor activities and diverse restaurants. Outside of fellowship he enjoys camping, hiking, gardening, and spending time with his wife, dogs, and his young daughter.

Santhi Logel, MDSanthi Logel, MD (2nd year)
Santhi is originally from southwestern Minnesota. She received her medical degree from Eastern Virginia Medical School and then completed her pediatric residency training at the University of Wisconsin-Madison. Santhi decided to stay at the University of Wisconsin-Madison for her pediatric endocrinology fellowship because of the comprehensive clinical experience, abundant research opportunities, and most importantly, dedicated and supportive faculty. During residency, Santhi’s research interests included exploring a possible association between type 1 diabetes mellitus and gender dysphoria in adolescents, creating a mentoring group for adolescents with type 1 diabetes mellitus, and improving EHR documentation for children with adrenal insufficiency. Outside of the hospital, Santhi enjoys designing jewelry, hiking, kayaking, gardening and watching sports (football and tennis to be exact). She also loves to spend time with her husband, dog, 2 cats, rabbit, and 6 chickens!

Erika ZevinErika Zevin, MD (3rd year)
Erika is originally from the Chicago area. She received her medical degree from Medical College of Wisconsin in Milwaukee and then went to Indiana University in Indianapolis for residency in combined internal medicine and pediatrics. She was exposed to the diabetes and endocrine specialty while in residency and decided to pursue further training back in Wisconsin. She was drawn to the endocrine department in Madison for its commitment to education, strong reputation, and the amazing faculty, staff, and fellows. She currently is interested in all aspects of endocrine and diabetes and will be deciding on her research focus over the next year. She has so far enjoyed Madison for its nature, community feel, and wonderful food. Outside of the hospital, Erika likes to play tennis, watch football, and bake.

David Allen, MDDavid Allen, MD
Dr. Allen received his MD degree from Duke University School of Medicine and completed pediatric residency and fellowship training in pediatric endocrinology at the University of Wisconsin Children’s Hospital. He is ABP certified in both pediatrics and pediatric endocrinology, and has served as President of the Pediatric Endocrine Society 2010-11 and President of the 10th International Meeting of Pediatric Endocrinology. His special interests include childhood growth and development, prevention of Type 2 diabetes and metabolic syndrome, newborn screening for endocrine disorders, ethical issues in pediatric endocrinology, and medical education. When not in-house, Dave can usually be found biking, running, or skiing through the Wisconsin countryside, playing jazz piano, or doting on his grandchildren. View Dr. Allen’s publications here.

Tracy Bekx, MDTracy Bekx, MD
Dr. Bekx received her medical degree from the Medical College of Wisconsin in Milwaukee and completed her pediatric residency at Ohio State University in Columbus, Ohio. She finished her training in pediatric endocrinology at the University of Wisconsin Children’s Hospital in Madison. Dr. Bekx is board certified in pediatrics and pediatric endocrinology. Her medical interests include diabetes and the endocrine aspects of Down syndrome, and she also sees patients at the Pediatric Polycystic Ovarian Syndrome (PCOS) clinic. In her free time, Dr. Bekx enjoys spending time with her family, and staying active outside with running, biking and downhill skiing. View Dr. Bekx’s publications here.

Aaron CarrelAaron Carrel, MD
Dr. Carrel received his medical degree from the University of Buffalo School of Medicine and completed residency training in pediatrics and fellowship training in pediatric endocrinology at the University of Wisconsin Children’s Hospital. He is board-certified in pediatrics and pediatric endocrinology, with special interests in childhood growth and weight disturbances, and Prader-Willi syndrome. Dr. Carrel is also medical director of the UW Health Pediatric Fitness Clinic in Madison, Wisconsin. View Dr. Carrel’s publications here.

Ellen Connor, MDEllen Connor, MD
Dr. Connor completed medical school and pediatrics residency at the Louisiana State University Medical Center-Shreveport and completed fellowship training in pediatric endocrinology at the University of Florida. She is certified by the American Board of Pediatrics in pediatric endocrinology. Her special interests are diabetes, childhood obesity, autoimmune thyroid and adrenal diseases, and polycystic ovarian syndrome. In her spare time, she enjoys photography, gardening, paper arts, classical music, and snowshoeing. View Dr. Connor’s publications here.

Michael MacDonald, MDMichael MacDonald, MD
Dr. MacDonald earned his medical degree from Washington University in St. Louis, Missouri, completed his residency at Massachusetts General Hospital, Boston, and completed fellowship training in pediatric endocrinology and diabetes at Harvard Medical School, Boston. Dr. MacDonald is certified by the American Board of Pediatrics in pediatric endocrinology and pediatrics. He has a special clinical interest in children with diabetes, especially atypical diabetes and the cause and genetics of the disease, hypoglycemia, and biochemistry of the pancreatic insulin-producing cells. Recently, a research team led by Dr. MacDonald discovered a genetic cause of a Type I diabetes syndrome that has puzzled investigators for 85 years. View Dr. MacDonald’s publications here.

Elizabeth MannElizabeth Mann, MD
Liz received her medical degree from the University of Wisconsin in Madison. She then moved to the Twin Cities to train in pediatrics residency at the University of Minnesota, culminating her training in the chief resident position. During residency, she served as medical staff at the American Diabetes Association Camp Needlepoint in Hudson, WI for 3 years where her interests in type 1 diabetes research and clinical care blossomed and evolved. She was drawn back to the UW pediatric endocrine and diabetes team to pursue her fellowship (5 years after her rotation with the team as an MS4!) because of their excellence in clinical care, supportive research environment, and faculty commitment to education. She loves Madison for its lakes (and bike paths!) and can often be found sailing on Lake Mendota with friends, her husband and son.

Allison J. Pollock, MDAllison Pollock, MD
Dr. Pollock received her undergrad degree in Math and History here at the University of Wisconsin, medical degree from the University of Rochester School of Medicine and Dentistry in Rochester, NY and completed pediatric residency and endocrinology fellowship training in pediatric endocrinology here at the University of Wisconsin Department of Pediatrics American Family Children’s Hospital. Dr. Pollock’s interests include technological resources (ex: electronic medical record, telehealth and patient-friendly online tools) to improve health related to endocrinologic conditions such as diabetes; maternal-fetal transmission of obesity and type 2 diabetes,; and ethical issues in endocrinology. For fun, Dr. Pollock has a soft-spot for Wired magazine, fonts and graphic design projects. Follow her on Twitter @PollockMD. View Dr. Pollock’s publications here.

Jennifer L. Rehm, MDJennifer Rehm, MD
Dr. Rehm’s medical interests include diabetes, working with adolescents, polycystic ovarian syndrome, disorders of sex development, and gender identity. Dr. Rehm’s research interests are in clinical research of pediatric obesity and insulin resistance, adipose tissue distribution, polycystic ovary syndrome, and non-alcoholic fatty liver disease (NAFLD). Dr. Rehm utilized novel MR technology to develop at NAFLD risk assessment model incorporating fasting insulin, total cholesterol, waist circumference, and ethnicity to improve early diagnosis of NAFLD in at risk populations. Future studies will investigate the evolution of adiposity and associated insulin-resistance in infants and middle-school aged girls of different races and ethnicities. Outside UW, Dr. Rehm enjoys seeing her 5 nieces and nephews, spending time outdoors, and growing vegetables on her balcony. View Dr. Rehm’s publications here.

Ei Terasawa, PhDEi Terasawa, PhD
Dr. Terasawa-Grilley received her Ph.D. degree from the Yokohama City University, Graduate School of Medicine, in Japan, and postdoctoral trainings at the University of California-Berkeley and University of California-Los Angeles. Her research interests include the mechanism of the onset of puberty and regulation of gonadotropin releasing hormone (GnRH) neurons. She trained a substantial number of postdoctoral research fellows and graduate students, who are now professors and scientists engaging in research and education in the field of Neuroscience/Neuroendocrinology elsewhere in the world. She has published approximately 150 papers in peer-reviewed journals and over 30 book chapters. In her spare time, she enjoys listening to classical music and gardening. View Dr. Terasawa’s publications here.

Betsy Bender Roe, RN, CPN, DNPBetsy Bender Roe, DNP, APNP
Betsy graduated from UW-Madison with her bachelor’s degree in Nursing in 2007 and her Doctor of Nursing Practice-Pediatrics in August 2017. She has worked at the American Family Children’s Hospital since 2007 and caring for children and their families has always been her passion. Betsy’s medical interests include diabetes technology, Type 1 and Type 2 diabetes in children, and transition of care from childhood to adulthood. Outside of work, she enjoys reading and being outside with her husband and their two sons.

Beth Van Den Langenberg, APNP, MSBeth Van Den Langenberg, APNP, MS
Beth is a nurse practitioner certified by the Pediatric Nursing Certification Board. Her medical interests include insulin pump and continuous glucose sensor therapies, cystic fibrosis-related diabetes and pediatric-adult transition.

Betsy Bazur-Leidy, RN, BSN, CPNBetsy Bazur-Leidy, RN, BSN, CPN
Betsy graduated from the University of Michigan School of Nursing but has spent her entire nursing career at UW-Madison. Her professional interests include pediatrics, but more specifically, endocrinology. Betsy is also the nurse coordinator for our UW PATH Clinic (Pediatric and Transgender Health) which began in 2013. She also loves spending time with her family (living vicariously through her adult daughters), traveling, reading, paddle-boarding and swimming.

Whitney Beaton, MSN, RN, ACCNS-PWhitney Beaton, MSN, RN, ACCNS-P
Whitney completed her undergraduate nursing degree at the University of Kansas and Master’s degree at the University of Missouri-Columbia. She began her career in pediatric nursing in 2009, and became interested in diabetes while working as a Pediatric ICU nurse. She is the Clinical Nurse Specialist for Pediatric Diabetes (inpatient and outpatient) at American Family Children’s Hospital. Whitney’s special interests include quality improvement, diabetes-related technology, and advancing nursing practice. Outside of work, she enjoys spending time with her husband and two young children, cooking, and crafting.

Kelly Dunphy, ADN, RNKelly Dunphy, ADN, RN
Kelly has worked in our UW pediatric endocrine division since 2008. She loves getting to know patients and families and helping inspire families with motivation to make healthy choices as kids grow up. Kelly is particularly interested in caring for young girls and women with Polycystic Ovarian Syndrome (PCOS). She coordinates the multidisciplinary PCOS clinic with Endocrinology, OBGYN, Nutrition and Health Psychology. In addition to her love of her job at American Family Children’s Hospital, Kelly is proud of her family and their farm, where she, her husband and 2 kids raise hogs, sheep and cattle.

Molly Gard, RNMolly Gard, RN
Molly is a pediatric diabetes nurse.

Amy Groener, RN, BSNAmy Groener, RN, BSN
Amy is a pediatric endocrinology nurse. She works with patients and families both in the clinical setting and triaging phone calls. She is the nurse coordinator for the Turner Syndrome Clinic and Pediatric Adolescent Transgender Health Clinic. In her free time, Amy enjoys spending time outside with her husband, their two active boys and dog Zanzibar. They enjoy a multitude of activities including biking, running and spending time on their boat.

Kelly Pfeil, RNKelly Pfeil, RN
Kelly is a pediatric endocrinology nurse.

Juliana Price, RN, MSN, CPNJuliana (Julie) Price, RN, MSN, CPN
Julie has worked in pediatrics since 2008 and joined the diabetes team in 2013.  She has a special interest in nursing education and is working towards becoming an Advanced Diabetes Manager. She enjoys spending time with her husband, daughter, and their Papillion, as well as reading, crafting, traveling and enjoying all the outdoor activities Madison has to offer.

Kari Schuhmacher, MSN, RN, CPNPKari Schuhmacher, MSN, RN, CPNP
Kari completed her undergraduate and Master’s degree at University of Wisconsin-Madison. She began her career in pediatric nursing in 1999 at UW Hospital working on the inpatient floor for pediatrics and pediatric oncology. She became interested in pediatric diabetes while working as a school nurse for the Madison School District from 2004-2011. Kari joined the pediatric diabetes team at American Family Children’s Hospital in the fall of 2018. During her free time, she enjoys hiking, biking, reading and spending time with her husband and 2 school-aged children.

Taylor JohnsonTaylor Johnson – Fellowship Coordinator
Taylor coordinates the nuts and bolts of our fellowship program. When outside of the hospital, Taylor enjoys kayaking, biking, cooking, and spending time with her corgi Stanley.

Theresa DuhrTheresa Duhr – Medical Program Assistant
Theresa is the co-coordinator for the administration aspects and event coordinating of the Division of Pediatric Diabetes and Endocrinology. When outside of the hospital, Theresa teaches aerobic and boot camp exercise classes, and stays active herself by swimming, biking and running. She also enjoys reading, campfires, traveling and spending time with family.

Susan Van RixelSusan Van Rixel – Medical Program Assistant
Susan manages the administration aspects and event coordinating of the Division of Pediatric Diabetes and Endocrinology. Susan’s interests include fitness, nutrition and cooking as well as all kinds of music. She enjoys playing the piano, reading, current events, and politics.