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Physician specialty

Hepatology

Find: Hepatology →

At a glance

Practicing in the U.S.
568
Per 100,000 residents
0.2
Women
39%
Median years since graduating
20

Training path

  1. College (bachelor’s degree) 4 years
  2. Medical school (MD or DO) 4 years
  3. Internal medicine residency 3 years
  4. Gastroenterology fellowship 3 years
  5. Transplant hepatology fellowship 1 year

Training after medical school: 7 years. From the start of college: about 15 years.

Usual minimum program lengths from ACGME program requirements. Some doctors take extra research years or a second fellowship.

Who they are

  • MD (DOs make up the rest) 96%
  • Women 39%
  • Graduated 35 or more years ago 17%
  • Offer telehealth 70%
  • Accept Medicare’s approved amount 97%

Sex and credentials from NPPES. Graduation year, telehealth and Medicare assignment from Medicare Care Compare, which covers clinicians enrolled in Medicare.

Where they practice

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What they do most for Medicare patients

  • Established patient office or other outpatient visit, 30-39 minutes 34,723
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 21,918
  • Established patient office or other outpatient visit, 40-54 minutes 19,619
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 12,858
  • Established patient office or other outpatient visit, 20-29 minutes 8,760
  • Pathology examination of tissue using a microscope, intermediate complexity 7,670
  • Measurement of liver stiffness 7,028
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 5,823
  • New patient office or other outpatient visit, 45-59 minutes 5,611
  • New patient office or other outpatient visit, 60-74 minutes 3,817
  • Special stained specimen slides to examine tissue including interpretation and report 3,717
  • Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 3,512

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Services billed to traditional Medicare in 2023 (Physician and Other Practitioners data); drugs given in the office are left out.

What they prescribe most

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Share of this specialty’s Medicare Part D prescriptions in 2024, including refills. Select a drug to see which of these clinicians prescribe it most, and where.

Hospitals where the most work

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Clinicians who list the hospital in Medicare Care Compare. The number opens the list of who works there.

Schools they graduated from most

  • Columbia University College of Physicians and Surgeons 9
  • Icahn School of Medicine at Mount Sinai 8
  • Boston University School of Medicine 7
  • Tufts University School of Medicine 7
  • University of North Carolina at Chapel Hill School of Medicine 6
  • Baylor College of Medicine 5
  • New York University School of Medicine 5
  • Northwestern University Feinberg Medical School 5
  • University of Southern California Keck School of Medicine 5
  • Wayne State University School of Medicine 5

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From Medicare Care Compare (Medicare-enrolled clinicians only).

Industry payments

Drug and device makers reported $8.0M in general payments to 380 clinicians in Hepatology in 2025. See who received the most

Source: CMS Open Payments, program year 2025. A payment is not evidence of wrongdoing.

Research in this field

U.S. researchers published 9,343 articles and reviews in hepatology in 2024–2026.

Journals with the most U.S. papers

  • Hepatology Lippincott Williams & Wilkins 285
  • Hepatology Communications Lippincott Williams & Wilkins 210
  • Cureus Cureus, Inc. 176
  • Liver International Wiley 160
  • Journal of Hepatology Elsevier BV 155
  • JHEP Reports Elsevier BV 145
  • HPB Elsevier BV 141
  • Clinical Gastroenterology and Hepatology Elsevier BV 138
  • Journal of Vascular and Interventional Radiology Elsevier BV 119
  • Journal of Clinical Oncology Lippincott Williams & Wilkins 113

Most-cited recent papers

  1. A Phase 3, Randomized, Controlled Trial of Resmetirom in NASH with Liver Fibrosis (opens in a new tab) New England Journal of Medicine, 2024 · cited 2,211 times · free to read
  2. Phase 3 Trial of Semaglutide in Metabolic Dysfunction–Associated Steatohepatitis (opens in a new tab) New England Journal of Medicine, 2025 · cited 1,238 times · free to read
  3. Tirzepatide for Metabolic Dysfunction–Associated Steatohepatitis with Liver Fibrosis (opens in a new tab) New England Journal of Medicine, 2024 · cited 1,078 times
  4. Epidemiology of metabolic dysfunction-associated steatotic liver disease (opens in a new tab) Clinical and Molecular Hepatology, 2024 · cited 1,072 times · free to read
  5. A Phase 2 Randomized Trial of Survodutide in MASH and Fibrosis (opens in a new tab) New England Journal of Medicine, 2024 · cited 552 times · free to read
  6. Metabolic dysfunction-associated steatotic liver disease: heterogeneous pathomechanisms and effectiveness of metabolism-based treatment (opens in a new tab) The Lancet Diabetes & Endocrinology, 2024 · cited 470 times · free to read
  7. The Global Epidemiology of Nonalcoholic Fatty Liver Disease and Nonalcoholic Steatohepatitis Among Patients With Type 2 Diabetes (opens in a new tab) Clinical Gastroenterology and Hepatology, 2024 · cited 460 times · free to read
  8. Nivolumab plus ipilimumab versus lenvatinib or sorafenib as first-line treatment for unresectable hepatocellular carcinoma (CheckMate 9DW): an open-label, randomised, phase 3 trial (opens in a new tab) The Lancet, 2025 · cited 426 times · free to read

From OpenAlex, an open index of research papers. Papers with at least one author at a U.S. institution, classified by subject; the subject covers the whole field, so related specialties share these lists. Citation counts change daily.

Sources: CMS NPPES (counts, sex, credentials), Medicare Care Compare (schools, graduation years, hospitals, telehealth), CMS Medicare Physician & Other Practitioners (2023) and Part D Prescribers (2024), CMS Open Payments (2025), ACGME program requirements (training length), OpenAlex (research), U.S. Census Bureau ACS 2020–2024 (population).