A Scientist working in lab

There are very few centers in the world that are entirely devoted to diabetes research and care — and Joslin is one of them. As a result, our researchers are bringing us closer to a cure. Each year, we make great headway in understanding the underlying cause of diabetes, as well as how to help prevent its complications.

The research arm of our institution is large. More than 250 researchers in 30 different labs are uncovering new information about type 1 and type 2 diabetes. In 2021, our researchers were awarded $23 million in grants from the National Institutes of Health (NIH). Today our team uses these funds to lead 186 IRB-approved studies that will set the standards for diabetes care around the world.

Our team’s deep commitment to research results in the publication of hundreds of scientific papers in peer-reviewed journals each year. Researchers and clinicians all over the globe rely on Joslin to be at the forefront of diabetes care — and we’re proud to serve the medical and scientific community in this way.

Meet Joslin's Investigators

Joslin Diabetes Center has a team of researchers who are dedicated to improving diabetes care and education for patients around the globe through cutting-edge research.

Cristina Aguayo-Mazzucato
Cristina Aguayo-Mazzucato, PhD, MD
Assistant Investigator
Assistant Professor, Harvard Medical School
Lloyd Paul Aiello
Lloyd P. Aiello, MD, PhD
Senior Investigator and Ophthalmologist
Director, Beetham Eye Institute
Section Head, Vascular Cell Biology
Professor of Ophthalmology, Harvard Medical School
Assistant Professor of Ophthalmology, Harvard Medical School
Keith Blackwell
Keith Blackwell, MD, PhD
Senior Investigator
Section Head, Islet Cell and Regenerative Biology
Acting Section Head, Immunobiology
Professor of Genetics, Harvard Medical School
Susan Bonner-Weir
Susan Bonner-Weir, PhD
Senior Investigator and Wellness Foundation Professor
Professor of Medicine, Harvard Medical School
Jerry Cavallerano
Jerry Cavallerano, OD, PhD
Clinical Investigator and Optometrist
Assistant Director, Beetham Eye Institute
Associate Professor of Ophthalmology, Harvard Medical School
Alessandro Doria
Alessandro Doria, MD, PhD, MPH
Senior Investigator
Section Head, Genetics and Epidemiology
Co-Director, Molecular Phenotyping and Genotyping Core
Professor of Medicine, Harvard Medical School
Professor of Epidemiology, Harvard T.H. Chan School of Public Health
Jonathan Dreyfuss
Jonathan Dreyfuss, PhD
Director, Bioinformatics & Biostatistics Core
Instructor in Medicine, Harvard Medical School
Jason Gaglia
Jason Gaglia, MD, MMSc
Assistant Investigator and Staff Physician
Section Head, Clinical, Behavioral and Outcomes Research
Director of Hood Center for the Prevention of Childhood Diabetes
Co-Director, Clinical Translational Research Core
Assistant Professor of Medicine, Harvard Medical School
Om Ganda
Om Ganda, MD
Clinical Investigator and Senior Staff Physician
Medical Director of the Lipid Clinic
Associate Clinical Professor of Medicine, Harvard Medical School
Laurie Goodyear
Laurie Goodyear, PhD, MS
Senior Investigator
Section Head, Integrative Physiology and Metabolism
Director, Animal Physiology Core
Professor of Medicine, Harvard Medical School
Osama Hamdy
Osama Hamdy, MD, PhD
Senior Staff Physician
Medical Director, Obesity Clinic Program and Inpatient Diabetes Program
Associate Professor, Harvard Medical School
Susan Herzlinger-Botein
Susan Herzlinger-Botein, MD
Research Associate and Staff Physician
Instructor in Medicine, Harvard Medical School
Albert Hwa
Albert Hwa, PhD
Operations Director, Center for Cell-based Therapy for Diabetes
Lecturer in Medicine, Harvard Medical School
Elvira Isganaitis
Elvira Isganaitis, MD, MPH
Assistant Investigator and Staff Physician
Assistant Professor of Pediatrics, Harvard Medical School
Carl Ronald Kahn
Ronald Kahn, MD
Senior Investigator
Chief Academic Officer
Section Head, Integrative Physiology and Metabolism
Mary K. Iacocca Professor of Medicine, Harvard Medical School
George King
George King, MD
Senior Investigator and Chief Scientific Officer
Section Head, Vascular Cell Biology
Director, Asian American Diabetes Initiative
Professor of Medicine and Ophthalmology, Harvard Medical School
Stephan Kissler
Stephan Kissler, PhD
Investigator
Co-Director, Genome Editing Core
Associate Professor of Medicine, Harvard Medical School
Aleksandar Kostic
Aleksandar Kostic, PhD
Assistant Investigator
Associate Director, Animal Physiology Core
Assistant Professor of Microbiology, Harvard Medical School
Andrzej Krolewski
Andrzej Krolewski, MD, PhD
Senior Investigator
Professor of Medicine, Harvard Medical School
Rohit Kulkarni, MD, PhD
Rohit Kulkarni, MD, PhD
Senior Investigator and Margaret A Congleton Professor
Section Head, Islet Cell and Regenerative Biology
Professor of Medicine, Harvard Medical School
Lori Laffel
Lori Laffel, MD, MPH
Senior Investigator
Chief, Pediatric, Adolescent, and Young Adult Section
Section Head, Clinical, Behavioral and Outcomes Research
Director, Clinical Translational Research Core
Professor of Pediatrics, Harvard Medical School
Sarah Lessard
Sarah Lessard, MSc, PhD
Assistant Investigator
Assistant Professor of Medicine, Harvard Medical School
Qian Li, Research Associate
Qian Li, MD, PhD
Research Associate
Instructor in Medicine, Harvard Medical School
Myra Lipes
Myra Lipes, MD
Investigator
Assistant Professor of Medicine, Harvard Medical School
Mary Loeken
Mary Loeken, PhD
Investigator
Associate Professor of Medicine, Harvard Medical School
Sanjeev Mehta
Sanjeev Mehta, MD, MPH
Chief Medical Officer
Chief Medical Information Officer
Senior Vice President
Investigator and Staff Physician
Assistant Professor of Pediatrics, Harvard Medical School
Joanna Mitri
Joanna Mitri, MD, MS
Research Associate and Staff Physician
Assistant Professor, Harvard Medical School
Associate Medical Director, Care Advisory and Affiliate Programs
Timothy Murtha
Timothy Murtha, MD
Physician, Department of Ophthalmology
Clinical Research Associate
Assistant Professor of Ophthalmology, Harvard Medical School
Monica Niewzcas
Monika Niewczas, MD, PhD, MPH
Assistant Investigator
Assistant Professor of Medicine, Harvard Medical School
Kyoungmin Park
Kyoungmin Park, PhD
Research Associate
Assistant Director, Animal Physiology Core
Instructor in Medicine, Harvard Medical School
Mary Elizabeth Patti
Mary-Elizabeth Patti, MD
Investigator and Staff Physician
Director, Hypoglycemia Clinic
Co-Director, Molecular Phenotyping and Genotyping Core
Associate Professor of Medicine, Harvard Medical School
Giulio Romeo
Giulio Romeo, MD
Assistant Investigator and Staff Physician
Associate Medical Director of the Adult Diabetes Section
Associate Program Director, Fellowship in Endocrinology, Diabetes & Metabolism, BIDMC-Joslin Diabetes Center
Instructor in Medicine, Harvard Medical School
Sylvia Rosas
Sylvia Rosas, MD, MSCE
Investigator and Staff Physician
Director, Latino Kidney Clinic
Associate Professor, Harvard Medical School
Jean E. Schaffer
Jean E. Schaffer, MD
Senior Investigator and Associate Research Director
Professor of Medicine, Harvard Medical School
Professor of Molecular Metabolism, Harvard T. H. Chan School of Public Health
Thomas Serwold
Thomas Serwold, PhD
Investigator
Co-Director, Flow Cytometry Core
Hetal Shah
Hetal Shah
Research Associate
Instructor in Medicine, Harvard Medical School
Steven Shoelson
Steve Shoelson, MD, PhD
Senior Investigator and Associate Research Director, Helen and Morton Adler Professor
Acting Section Head, Immunobiology
Professor of Medicine, Harvard Medical School
Robert Stanton
Robert Stanton, MD
Investigator and Staff Physician
Chief, Kidney & Hypertension Section
Associate Professor of Medicine, Harvard Medical School
Jennifer Sun
Jennifer Sun, MD, MPH
Investigator and Staff Physician
Associate Professor of Ophthalmology, Harvard Medical School
Elena Toschi
Elena Toschi, MD
Research Associate and Staff Physician
Director, Young Adult Program
Assistant Professor of Medicine, Harvard Medical School
Dr. Yu-Hua Tseng
Yu-Hua Tseng, PhD
Senior Investigator
Professor of Medicine, Harvard Medical School
Dr. Amy Wagers
Amy Wagers, PhD
Senior Investigator
Director, Flow Cytometry Core
Professor Stem Cell and Regenerative Biology, Harvard Medical School
Gordon Weir, MD
Gordon Weir, MD
Senior Staff Physician
Senior Investigator
Professor of Medicine, Harvard Medical School
Peng Yi
Peng Yi, PhD
Assistant Investigator
Co-Director, Genome Editing Core
Assistant Professor of Medicine, Harvard Medical School