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As 2024 comes to a close, we want to recognize the UNC Department of Medicine faculty ranked on Expertscape in their areas of expertise. Over 40 DOM faculty have been internationally ranked. Expertscape ranks researchers based on the quantity and significance of their published studies in a specific topic, with a focus on their authorship and impact in that field.” All rankings reflect worldwide standings. See individual profiles on the Office of Research Expert Database.


Division of Infectious Disease

  • David Weber: #1 in Infection Control, #2 in Disinfection, #9 in Iatrogenic Disease
  • Joe Eron: #1 in Viral Load, #7 in HIV, #9 in Oncogenic Viruses, #10 in Viral STDs, #10 in Immunologic Deficiency Syndrome
  • Nancie Archin: #9 in Virus Latency
  • David Margolis: #2 in Virus Latency, #15 in HIV
  • Joseph Tucker: #10 in STDs, #10 in Sexual Behavior, #22 in Immunologic Deficiency Syndrome
  • William Fischer: #11 in Ebola Hemorrhagic Fever
  • Luther Bartelt: #11 in Giardiasis
  • David van Duin: #1 in Carbapenem-Resistant Enterobacteriaceae, #15 in Klebsiella
  • Mike Cohen: #5 in COVID-19 Drug Treatment, #11 in HIV, #12 in Retroviridae, #12 in Immunologic Deficiency Syndrome, #13 in Viral STDs

Division of Cardiology

  • Sidney Smith: #20 in Hypercholesterolemia, #23 in PCSK9 Inhibitors

Division of Endocrinology & Metabolism

  • John Buse: #8 in Diabetic Ketoacidosis, #10 in Type 2 Diabetes Mellitus, #14 in Hypoglycemia, #28 in Insulin

Division of Gastroenterology & Hepatology

  • Anne Peery: #1 in Diverticulitis
  • Edward Barnes: #2 in Ileal Disease, #6 in Enteritis, #9 in Proctectomy
  • Evan Dellon: #1 in Eosinophilic Esophagitis, #1 in Duodenitis, #1 in Leukocyte Disorders, #2 in Enteritis, #7 in Gastroenteritis
  • Hans Herfarth: #3 in Ileal Diseases, #3 in Pouchitis, #7 in Enteritis, #15 in Colectomy
  •  Nicholas Shaheen: #1 in Barrett Esophagus
  • Stanley Lemon: #1 in Hepatovirus, #4 in Hepatitis A
  • Todd Baron: #2 in Cholecystostomy, #2 in Cholangiography, #3 in Biliary Tract, #11 in Gallbladder, #11 in Endoscopy
  • Ian Grimm: #7 in Self-Expandable Metallic Stents, #11 in Cholecystitis, #19 in Biliary Tract Surgical Procedures

Division of General Medicine and Clinical Epidemiology

  • Seth Berkowitz: #6 in Food Insecurity

Division of Hematology

  • Nigel Key: #4 in Sickle Cell Trait, #12 in Thromboplastin, #25 in Blood Coagulation
  • Rafal Pawlinski: #9 in Thromboplastin
  •  Raj Kasthuri: #11 in Epistaxis, #18 in Hereditary Hemorrhagic Telangiectasia
  • Yohei Hisada: #4 in Thromboplastin
  • Nigel Mackman: #1 in Thromboplastin, #5 in Factor XI, #17 in Blood Coagulation, #19 in Hemostasis
  • Steven Grover: #7 in Thromboplastin
  • Daniel Richardson: #15 in Radiation-Induced Neoplasms

Division of Nephrology & Hypertension

  • Abhijit Kshirsagar: #16 in Hematinics
  • Prabir Roy-Chaudhury: #4 in Surgical Arteriovenous Shunt, #5 in Vascular Fistula, #11 in Surgical Anastomosis
  • Ronald Falk: #5 in Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis, #6 in systemic vasculitis
  • Jennifer Flythe: #6 in Sorption Detoxification, #7 in Dialysis, #11 in Chronic Kidney Failure, #16 in Renal Replacement Therapy
  • Vimal Derebail: #3 in Sickle Cell Trait

Division of Oncology

  •  Lisa Carey: #10 in Breast Neoplasms
  • Matthew Milowsky: #14 in Cisplatin, #15 in Urothelium
  • Ethan Basch: #1 in Patient Outcome Assessment, #1 in Health Planning, #10 in Antiemetics, #11 in Adverse Drug Reaction Reporting Systems
  • Hyman Muss: #9 in Geriatrics

Division of Pulmonary Diseases & Critical Care Medicine

  • Michael Knowles: #5 in Dextrocardia, #5 in Kartagener Syndrome, #5 in Situs Inversus, #7 in Ciliary Motility Disorders
  •  Richard Boucher: #1 in Mucociliary Clearance, #4 in Mucus
  • Scott Donaldson: #9 in Mucociliary Clearance

Division of Rheumatology, Allergy & Immunology

  • Richard Loeser: #4 in Chondrocytes
  • Scott Commins: #1 in Tick Bites, #5 in Immunoglobulin E, #10 in Immunoglobulin Isotypes, #11 in Galactose