Miriam S. Udler, MD PhD
Principal Investigator

Miriam is physician scientist at Massachusetts General Hospital (MGH) and an investigator in the MGH Center for Genomic Medicine. She is also an Associate Member of the Broad Institute of MIT and Harvard. Dr. Udler is a practicing endocrinologist and the founding director of the MGH Diabetes Genetics Clinic, which provides genetic testing, counselling, and management to patients with monogenic forms of diabetes. Her team’s research focuses on genetic contribution to diabetes risk and clinical applications of genomic data, including using genetics to identify atypical forms of diabetes and to dissect disease heterogeneity. Outside of work, she enjoys running, spending time with family, and traveling, especially to Australia where her husband is from.

Caitlin Peterson
Administrative Coordinator

Caitlin Peterson is an Admin for the UdlerLab and the Center for GenomicMedicine Administration at Massachusetts General Hospital. She completedher undergraduate degree from Manhattanville University. Before workingwith our team, she worked at MGH Orthopedics for 2 years and before thatworkedat Westchester Medical Center in Valhalla, NY. In her free time, sheenjoys spending timecooking, going to the beach, and spending time withfamily, especially her 1 yr old daughter, Erin.

Phebe Olorunfemi
Project Manager II

Phebe serves as a Project Manager for the RADIANT project. Phebe has a Master’s in Public Health with a concentration in Health Administration from The University of Arizona. She has experience serving as an administrative and scientific project manager for over 20 large-scale projects. She manages interactions with collaborators, oversees sample and phenotype intake from multiple institutions, and manages funding, grant administration, and legal/compliance efforts for RADIANT. 

Nipith Charoenngam
Postdoctoral fellow

Nipith Charoenngam received his medical degree from Siriraj Hospital, Mahidol University in Bangkok, and completed his Internal Medicine residency at Mount Auburn Hospital. He is currently an adult Endocrinology fellow at MGH, with research interests in bone and mineral metabolism and genetics. He is investigating the genetic pathways that influence bone mineral density and fracture risk, as well as their relationship with diabetes-related traits. He is also interested in investigating gene-disease associations in monogenic disorders of calcium metabolism and diabetes. Outside of medicine, his passions include basketball, acoustic fingerstyle guitar and mathematical problem solving.

Aaron Deutsch
Instructor

Aaron Deutsch is an Assistant Professor at MGH. Prior to fellowship, he received an MD from Harvard Medical School, completed training in internal medicine at Brigham and Women’s Hospital, and completed a fellowship in endocrinology at MGH. He is interested in understanding genetic risk for type 1 and type 2 diabetes by analyzing patients from diverse populations. He is also interested in atypical forms of diabetes, such as ketosis-prone diabetes, which may be more prevalent in certain ancestry groups. In his free time, Aaron enjoys watching baseball, listening to classical music, and spending time with his family.

Steven D. Gage
Post-doctoral Associate

Steven Gage is a post-doctoral associate at the Broad Institute of MIT & Harvard, Massachusetts General Hospital, and Harvard Medical School. Steven received his BS at Brandeis University working in the genetics lab of Jeffrey C. Hall, his PhD at University of Massachusetts Chan Medical School studying biochemical and biophysical structure and function of the cardiac potassium channel IKs under William R. Kobertz, and has worked as a post-doctoral fellow previously in the lab of Anna Greka at Massachusetts General Hospital and Harvard Medical School studying the roles of calcium signaling in filtration cells of the kidneys. Steven is broadly curious, and interested in integrating multiple data types to ask questions related to the development of metabolic disease, and has worked with the Rare and Atypical Diabetes NeTwork investigating potential new genes and variants involved in metabolic regulation. In his spare time, Steven enjoys playing with his grandchildren, reading, movies, baseball, painting, and hopes to resume playing the cello in the future. 

Julie Gervis
Postdoctoral Research Fellow

Julie is a postdoctoral fellow at the Center for Genomic Medicine at Massachusetts General Hospital and Harvard Medical School. She obtained her PhD from Tufts University at the Jean Mayer USDA Human Nutrition Research Center on Aging and her BS from the University of Michigan. Her research focuses on using large-scale genomics to understand mechanisms underlying eating behavior and metabolic disease risk, with the goal of advancing precision medicine. She is particularly interested in sensory (taste and smell)-related mechanisms, and the contribution of sensory-related loci to metabolic disease risk and responses to obesity and diabetes pharmacotherapy. Outside of the lab, she enjoys baking, yoga, and circus arts.

Sarah Hsu
Staff scientist

Sarah Hsu is a computational biologist interested in applying computational methods to analyze genomic and genetic data in diabetes research. Her current projects include using computational genetic and genomic approaches to study type 2 diabetes and gestational diabetes. She is manages the lab’s data from the Mass General Brigham Biobank. When not at work, she enjoys traveling and taking ballet classes.

Raymond Kreienkamp
Post-doctoral fellow

Ray Kreienkamp is a pediatric endocrinology fellow at Boston Children's Hospital. He completed medical school at St. Louis University, where he completed a MD/PhD. He did his graduate work in Biochemistry and Molecular Biology in the lab of Susana Gonzalo, PhD, studying the molecular mechanisms driving Hutchinson-Gilford Progeria Syndrome. He completed his pediatric residency at St. Louis Children's Hospital and Washington University School of Medicine. He is now a pediatric endocrinology fellow at Boston Children's Hospital. He is passionate about pediatric endocrinology, but also the study of diabetes and its genetic drivers. Outside of the hospital and the lab, you can probably find him outdoors somewhere or around a pool, playing, coaching, or reffing his favorite sport of water polo.

Magdalena Sevilla
Instructor

Magdalena Sevilla is a molecular epidemiologist specializing in type 2 diabetes–related outcomes and large-scale multi-omics analyses. She is an Instructor in the Clinical and Translational Epidemiology Unit at Massachusetts General Hospital and at the Broad Institute. She earned her MSc and PhD in Epidemiology from the National University of Mexico (UNAM). Her research focuses on integrating environmental, genetic, and multi-omic data across ancestry-diverse cohorts to better understand the determinants of type 2 diabetes risk and to develop tools for precision prevention. In her spare time, Magda enjoys exercising, cooking, and attending live concerts.

Kaitlyn Shank
Med-Peds Endocrine Fellow

Kaitlyn Shank is a dual adult and pediatric endocrinology fellow, currently completing her pediatric endocrinology fellowship at Boston Children's Hospital and her adult endocrinology fellowship at Mass General Hospital. She completed her dual residency in Internal Medicine & Pediatrics at Brigham & Women's Hospital and Boston Children's Hospital, respectively. She has previous research experience studying the genetic and epigenetic basis of acute myeloid leukemia and is motivated in her fellowship research to characterize the phenotypes and best treatment methods for complex and atypical diabetes (in conjunction with genetic analysis) in adults and kids. Clinically, she is passionate about the treatment of all forms of diabetes, which is driven by her own experience living with type 1 diabetes. Outside of the hospital, Kaitlyn enjoys marathon running, walks with her labradoodle and spending time with her husband and her infant son James. 

Seth Sharp
Research Scientist II

Seth Sharp is a staff scientist at the Broad Institute in the Udler lab. Originally from the UK, Seth studied applied mathematics before completing his graduate training at the University of Exeter, where he developed a genetic risk score now used to screen for Type 1 diabetes in early life. He then joined Stanford University as a postdoctoral fellow, studying how genetic factors influence insulin secretion in diabetes, using islets donated from human pancreas. His work focuses on using computational genomics to advance precision medicine in diabetes.

Kirk Smith
Staff scientist

Kirk Smith completed his undergraduate degree in Mechanical Engineering at Virginia Tech and his masters degree in Biomedical Engineering at University of Michigan. His research focuses on developing a high-throughput model for genetic loci clustering. Outside of work, his hobbies include ice hockey, hiking with his dog, and traveling.

Lukasz Szczerbinski 
Instructor

Lukasz is a physician-scientist at Massachusetts General Hospital and an Instructor at Harvard Medical School. He also leads a precision medicine research group at the Medical University of Bialystok in Poland. His research focuses on precision medicine approaches to obesity and diabetes, including the genetic mechanisms underlying treatment responses and the integration of multi-omics data to improve diagnosis and therapy. Clinically, Lukasz specializes in treating metabolic diseases, with a focus on implementing personalized therapeutic strategies. He serves as principal investigator on multiple large-scale research projects, including GAROS, a pharmacogenomics study on semaglutide response, and PolReD, the largest diabetes registry in Poland. Outside of work, Lukasz enjoys playing tennis, walking his dog Arthur, and experimenting in the kitchen.

Thinley Yidzin Wangden
Computational Associate

Thinley completed her undergraduate degree in Computational Biology from Colby College where she developed a strong interest in genomics and its applications in biomedical research. Currently, her research centers on pharmacogenomics, applying computational genomics to investigate treatment responses in Type 2 Diabetes, with the goal of improving precision medicine approaches.

Sara Cromer
Assistant Physician (MGH), Assistant Professor (HMS)

Sara Cromer is an Assistant Physician in Endocrinology at Massachusetts General Hospital. She received her medical degree from Baylor College of Medicine, completed internship and residency at New York Presbyterian Hospital-Columbia University Medical Center, and completed fellowship at Massachusetts General Hospital. Dr. Cromer’s research focuses on understanding and addressing racial and socioeconomic disparities in the care of patients with type 2 diabetes by leveraging large observational and interventional data sets to study these disparities in different care settings. She also acts as the MGH site PI for the RADIANT study, recruiting individuals with atypical forms of diabetes to engage with a national research effort to better understand this phenotype. She maintains an active clinical presence, seeing patients in the MGH Diabetes Center and Endocrine Associates clinic, as well as attending on the Inpatient Diabetes Management, Endocrine Consult, and General Medicine services.

Julia Douvas
Clinical Research Coordinator

Julia Douvas completed her undergraduate degree in Computer Science at Princeton University. She serves as a clinical research coordinator for the MGH RADIANT team and contributes to computational projects that analyze clinical and genomic data to gain deeper insights into type 2 diabetes and related diseases. In her free time, Julia enjoys running, spending time with friends, and being outdoors.

Arijeet Gattu
Endocrinologist at MGH, Instructor at Harvard Medical School

Ari Gattu, MBBS, MS (He/Him), is an endocrinologist at Massachusetts General Hospital and an instructor at Harvard Medical School. He did his post-doctoral training at Yale School of Medicine, followed by his clinical/research fellowship at Brigham and Women’s Hospital and Joslin Diabetes Center under the mentorship of Ron Kahn.

Dr. Gattu’s research focuses on understanding 1) the genetic basis of insulin resistance in lean individuals and 2) how these genes interact with the environment, that is, nutrition in these processes.

His clinical interests are understanding hypertriglyceridemia, metabolic dysfunction-associated steatotic liver disease (MASLD), and lipodystrophy. His other clinical interests include understanding the genetic basis of early onset of type 2 diabetes in South Asians (Current Research Studies). 

Mathula Muhundan
Student

Mathula is currently a medical student at Memorial University of Newfoundland. She completed an honors bachelor of science degree in biochemistry at the University of Toronto in June 2025, and has been working with the team on diabetes protein clustering. She has research interests in applying -omics to diabetes and other metabolic diseases, based on her previous work in metabolomics and transcriptomics during her undergraduate degree. Mathula hopes to pursue a career as a physician-scientist. Outside research and academics, she enjoys playing the bass and baking.

Timothy Majarian
Computational Biologist

Tim is a Computational Associate II. He completed his undergraduate degree in Mathematics and Biology at University of Vermont and his master’s in Computational Biology from Carnegie Mellon University. He led efforts to curate large-scale biobank data for the team. Following his time with our group, Tim joined Vertex Pharmaceuticals as a Research Scientist.

Hyunkyung “Claire” Kim
Computational Biologist

Claire completed her undergraduate degree in Computer Science from Yonsei University and her master’s in Computational Biology and Quantitative Genetics from Harvard T.H. Chan School of Public Health. Claire’s research in the lab focused on developing a high-throughput model to perform cluster analysis of genetic loci. Her work was published in Diabetologia in January 2023. She left the group to start a PhD in Genetics at University of Chicago in fall 2021.

Lynette Desharnais
Administrative Coordinator

Lynette Desharnais is an Administrative Coordinator for the Udler lab, Florez lab, Diabetes Unit, and Endocrine Division. She completed her undergraduate degree in Biology and Nutrition from Framingham State University. Before working with our team, Lynette worked at the MGH Chelsea Health Care Center for five years. In her free time, she enjoys spending time with family and friends, walking, hiking, going to the beach, and vacationing at Lake Winnipesaukee in NH.

Ahmed Alkanaq
Post-doctoral fellow

After completing his PhD in Medical Genetics from Japan, Ahmed Alkanaq developed an interest in rare genetic variation responsible for complex metabolic diseases like diabetes. He has an MD degree from Iraq and an MS degree in Human Genetics and Genetic Counseling from New York. His passion for serving patients with genetic disorders led him to pursue a research path for identifying novel genetic variants responsible for medical pathologies. He is a member of the discovery team of the Rare and Atypical Diabetes Network (RADIANT) study, where he utilizes his molecular genetics and bioinformatics skills to performing genome analysis to identify genes responsible for atypical and rare forms of diabetes. Outside work, Dr. Alkanaq enjoys mountain biking in summer, snowboarding in winter, and hiking all year round.

Chris Bryan
Staff scientist

Chris Bryan completed his undergraduate degree in Statistics at Purdue University with research interests in statistical genetics and multi-omics network analysis. Within the lab, his research focuses on analysis of gene expression datasets. Outside of work he is interested in baseball, music, and film.

Kathy Chu
Clinical research coordinator

Kathy Chu was born and raised in Portland, Maine. She moved to Boston to attend Boston University and has stayed since. Her work interests involve a combination of diabetes, research, and genetics while emphasizing the importance of maintaining empathy with patients. Outside of work, she is an avid weightlifter and self-proclaimed master chef.

Mariella Facibene
Clinical research coordinator

Mariella Facibene completed her Health Science degree at Northeastern University. She has been working at the MGH Diabetes Research Center since January 2021 and recently joined the MGH RADIANT study team. She is currently applying to medical school. Outside of work, she loves cooking and traveling.

Victoria Chen
Student

Victoria Chen is an undergraduate student at Brown University, concentrating in computational biology. She is interested in using genetic analysis to understand atypical forms of diabetes. In her free time, she enjoys cooking, biking, and playing the flute.

William Marshall
Student

William Marshall recently graduated from Boston University and currently working as a PCA at Brigham and Womens hospital on cardiac surgery step down and ICU. He is currently applying PA school.

Emmanuel Oshodi
Student

Emmanuel Oshodi is a student at the University of Rochester, where he majors in Microbiology and minors in Psychology. He is passionate about giving back to the community, equality in patient care, and clinical trials. He hopes to transition his background in biological sciences to healthcare and strives to ensure all patients receive appropriate care regardless of their background.

Micah Koss
Student

Micah Koss is a rising senior at Tufts University studying Community Health with a Spanish minor on the pre-med track. He became interested in Diabetes Research shortly after being diagnosed with T1D halfway through sophomore year of undergrad. This inspired him to want to learn more about this life-changing disease that manifests in so many ways, and hopefully apply what he learned from his own experiences along the way. Besides research and school, he works as a Medical Assistant, loves going to the gym, says hi to most dogs he passes, and watches his fair share of TV.

Cristina Fernandez Hernandez
Student

Cristina Fernandez Hernandez is currently a second-year medical student at the University of Puerto Rico School of Medicine. She started working with Dr. Udler as part of MGH Summer Research Training Program in June 2022. After obtaining her medical degree, she plans to continue into a residency program, hopefully in a research-oriented institution, that gives her the opportunity to create spaces in medicine for other students underrepresented in medicine. Regardless of where she trains, her ultimate goal is to practice medicine in Puerto Rico.

Evelyn Greaux
Senior clinical research coordinator

Evelyn Greaux graduated from the University of Rochester with a BS in Biochemistry and joined the MGH Diabetes Research Center as a Clinical Research Coordinator. She plans on attending medical school and incorporating clinical research into her career. She is a lover of everything science, medicine, and technology. Her personal interests include traveling, nail art, and spending time with my loved ones.

Daniel DiCorpo
Research Associate

Daniel DiCorpo is a recent graduate of Boston University's Biostatistics doctoral program.  There, he studied the genetic basis of cardiometabolic disease in the Framingham Heart Study (FHS) and participating consortia including the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) and the Trans-Omics for Precision Medicine (TOPMed) program.  He is also interested in causal inference methodology including instrumental variable analysis, g-methods, and inverse probability weighting. Daniel is an enthusiastic teacher having previous roles of high school mathematics teacher and biostatistics instructor. Outside of work, Daniel enjoys being outdoors with his golden retriever Willa.