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James Hamilton

James Hamilton, MD

Gastroenterology

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Highlights

Age Groups Seen

  • Young Adult 18-25
  • Adult 26-64
  • Older Adult 65+

Languages

  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About James Hamilton

Professional Titles

  • Director of Hepatology
  • Interim Director, Division of Gastroenterology and Hepatology

Primary Academic Title

Associate Professor of Medicine

Johns Hopkins Physician

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Background

Dr. Hamilton is an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology. He is the Interim Director, Division of Gastroenterology and Hepatology and the Director of Hepatology for Johns Hopkins Medicine.

His clinical specialties include Wilson Disease, Cystic Fibrosis related liver disease, liver transplantation, hepatocellular carcinoma, cirrhosis, portal hypertension, acute and chronic viral, non-alcoholic fatty liver disease (NASH), autoimmune, and cholestatic liver disease. 

His research interests include the copper homeostasis and its regulation of lipid metabolism and liver injury, the fundamental mechanisms regulating liver fibrosis, and the molecular genetics of hepatocellular carcinoma and early detection biomarkers. 

Dr. Hamilton is a 2005 recipient of the National Institutes of Health/ National Research Scholar Award for gastroenterology and hepatology.

Clinical Trials Summary

A Phase 3, Double-Blind Randomized, Long-term, Placebo-controlled, Multicenter Study Evaluating the Safety and Efficacy of Obeticholic Acid (OCA) in subjects with Non-Alcoholic Steatohepatitis (REGENERATE)

A Phase 2, Double-blind, Randomized, Placebo-controlled, Dose-finding Study to Evaluate the Safety, Tolerability and Efficacy of Volixibat Potassium, an Apical Sodium-Dependent Bile Acid Transporter Inhibitor (ASBTi) in Adults with Nonalcoholic Steatohepatitis (NASH)

Sofusbuvir and Ledipasvir in HIV/HCV Coinfected Pre and Post Liver Transplant

A Phase II Randomized Multicenter Placebo-Controlled Blinded Study of Sorafenib Adjuvant Therapy in High Risk Orthotopic Liver Transplant (OLT) Recipients with Hepatocellular Carcinoma (HCC)

Find a Clinical Trial

View all trials by this principal investigator.

Additional Academic Titles

Associate Professor of Physiology, Pharmacology and Therapeutics

Contact for Research Inquiries

720 Rutland Ave
Ross 921
Baltimore, MD 21205

Research Interests

Early detection biomarker discovery for hepatocellular carcinoma, Wilson Disease: Copper homeostasis and regulation of lipid metabolism and liver injury. Pathogenesis of Liver fibrosis and cancer

Lab Website

James Hamilton Lab

  • The main research interests of the James Hamilton Lab are the molecular pathogenesis of hepatocellular carcinoma and the development of molecular markers to help diagnose and manage cancer of the liver. In addition, we are investigating biomarkers for early diagnosis, prognosis and response to various treatment modalities. Results of this study will provide a molecular classification of HCC and allow us to identify targets for chemoprevention and treatment. Specifically, we extract genomic DNA and total RNA from liver tissues and use this genetic material for methylation-specific PCR (MSP), cDNA microarray, microRNA microarray and genomic DNA methylation array experiments.

Selected Publications

  • Hamilton JP, Koganti L, Muchenditsi A, Pendyala VS, Huso D, Hankin J, Murphy RC, Huster D, Merle U, Mangels C, Yang N, Potter JJ, Mezey E, Lutsenko S. Activation of LXR/RXR Pathway Ameliorates Liver disease in ATP7b-/- (Wilson disease) mice. Hepatology 2016; 63(6): 1828-41. PMID: 26679751

  • Hamilton JP, Potter JJ, Koganti L, Meltzer SJ, Mezey E. Effects of Vitamin D stimulation of Thioredoxin Interacting Protein in hepatocellular carcinoma. Hepatol Res. 2014; 44(13): 1357-66. PMID: 24451003

  • Karthikeyan S, Potter JJ, Geschwind JF, Sur S, Hamilton JP, Vogelstein B, Kinzler KW, Mezey E, Gaganpathy-Kanniappan S. Deregulation of energy Metabolism Promotes Antfibrotic Effects in Human Hepatic Stellate Cells and Prevents Liver Fibrosis in a Mouse Model. Biochem Biophys Res Comm 2016; 469(3): 463-9. PMID: 26525850

  • Oh Y, Park O, Swierczewska M, Hamilton JP, Park JS, Kim TH, Lim SH, Eom H, Jo DG, Lee CE, Kechrid R, Mastorakos P, Zhang C, Hahn SK, Jeon OC, Byun Y, Km K, Hanes J, Lee KC, Pomper MG, Gao B, Lee S. Systemic PEGylated TRAIL treatment ameliorates liver cirrhosis in rats by eliminating hepatic stellate cells. Hepatology 2016; 64(1): 209-23. PMID: 26710118

Honors

  • Research Fellowship, NRSA
  • Top Doctor, Baltimore Magazine, 1/1/20
  • Top Doctor, Baltimore Magazine, 1/1/19
  • Top Doctor, Baltimore Magazine, 1/1/18

Memberships

  • AASLD
  • AGA

Locations

  1. Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
    • 2360 West Joppa Road, Joppa Concourse STE 205, Lutherville, MD 21093
    • Get Directions

Expertise

Education

  • Fellowship: Johns Hopkins University School of Medicine, Gastroenterology, 2007
  • Fellowship: University of Maryland Medical Center, Gastroenterology, 2006
  • Residency: McGaw Medical Center of Northwestern, Internal Medicine, 2003
  • Medical Education: University of Maryland School of Medicine, Medicine, MD, 2000

Board Certifications

  • Transplant Hepatology: American Board of Internal Medicine, 2008
  • Gastroenterology: American Board of Internal Medicine, 2006

Insurance

Please contact the location directly to confirm your health plan is accepted.
Search plans
  • Aetna
  • CareFirst
  • Cigna
  • First Health
  • Geisinger Health Plan
  • HealthSmart/Accel
  • Johns Hopkins Health Plans
  • MultiPlan
  • Pennsylvania's Preferred Health Networks (PPHN)
  • Point Comfort Underwriters
  • Private Healthcare Systems (PHCS)
  • Veteran Affairs Community Care Network (Optum-VACCN)

Ratings & Reviews

4.9 out of 5

76 ratings, 31 reviews

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

Overall Rating by Patient
Provider Listened Carefully
Provider Explained Things Clearly
Provider Knew Medical History
Provider Showed Respect
Provider Spent Enough Time
Search reviews
    5 out of 5 stars
    Reviewed on 3/4/2026

    Dr. Hamilton is always friendly, patient, and explains things thoroughly.

    5 out of 5 stars
    Reviewed on 3/4/2026

    Dr Hamilton took the time to listen, to review my test results before my appointment and during my appt, and to explain the future course of action in a way that I could understand. I felt as though I am not just a patient but a participant in my care plan.

    5 out of 5 stars
    Reviewed on 2/25/2026

    Dr. Hamilton is EXCELLENT, He is Caring, Kind, Very Very Knowledgeable. I feel I am in Excellent hands, very best care. He is OUTSTANDING. I am so thankful and grateful he is my doctor.

    5 out of 5 stars
    Reviewed on 2/18/2026

    I always feel like I'm getting the best care possible with Dr hamilton

    5 out of 5 stars
    Reviewed on 2/11/2026

    Dr Hamilton is always very clear in his explanations of my health and listens to my comments and acknowledges them.

    5 out of 5 stars
    Reviewed on 2/4/2026

    Always a pleasant experience at the office.

    5 out of 5 stars
    Reviewed on 1/7/2026

    I feel very informed regarding my conditions with Dr. Hamilton. I have no doubts that I am in excellent hands

    5 out of 5 stars
    Reviewed on 1/7/2026

    Dr Hamilton is an excellent physician!Very personable

    5 out of 5 stars
    Reviewed on 12/17/2025

    Dr. Hamilton was very attentive to all the detail of my case and all information that he gave me was very thorough and easy to understand. I am very impressive of him and his assistance, both were very professional and courteous.

    5 out of 5 stars
    Reviewed on 11/26/2025

    Excellent

    5 out of 5 stars
    Reviewed on 11/12/2025

    Dr Hamilton is an excellent doctor- kind, patient and knowledgeable. He listens and answers all my questions and I trust him completely.

    5 out of 5 stars
    Reviewed on 11/12/2025

    This was my first Visit with Doctor Hamilton and it exceeded my expectations. Super grateful for him and his team you can tell they go above and beyond.

    5 out of 5 stars
    Reviewed on 11/5/2025

    Excellent care. Very attentive to my needs. Answered all my questions.

    5 out of 5 stars
    Reviewed on 10/22/2025

    Dr Hamilton is a fantastic provider. The best doctor I have ever had the pleasure to work. Thoughtful, thorough and extremely well-versed in his area.

    5 out of 5 stars
    Reviewed on 10/22/2025

    Dr Hamilton is absolutely brilliant.

    5 out of 5 stars
    Reviewed on 10/15/2025

    Dr Hamilton was very personable and answered every question in detail. He took his time and discussed future plans for my medical care

    5 out of 5 stars
    Reviewed on 10/15/2025

    Outstanding physician. His intervention has been critical to my health

    5 out of 5 stars
    Reviewed on 10/15/2025

    Dr Hamilton is great

    5 out of 5 stars
    Reviewed on 9/12/2025

    Very professional, knowledgeable and friendly

    5 out of 5 stars
    Reviewed on 9/12/2025

    This was one of the most comprehensive appointments I've had since moving to Maryland. Dr Hamilton was engaging, patient and thoughtful.

    5 out of 5 stars
    Reviewed on 8/13/2025

    This was my first time meeting Dr Hamilton. He put me at ease and made me feel confident that JH was a good choice for me.

    5 out of 5 stars
    Reviewed on 7/16/2025

    Dr Hamilton is wonderful. Takes time to explain things clearly and precise.

    5 out of 5 stars
    Reviewed on 7/2/2025

    Dr studied all my medical records in debt. Confirming details to understand my condition

    5 out of 5 stars
    Reviewed on 6/24/2025

    Dr. Hamilton was knowledgeable and patient. He took time with me and answered all my questions. And he used those questions to ask questions of his own. He was an excellent provider to me

    5 out of 5 stars
    Reviewed on 6/19/2025

    Dr. Hamilton took the time to listen to and address my concerns. He is extremely knowledgeable in his field.

    5 out of 5 stars
    Reviewed on 6/18/2025

    Great, very professional doctor

    5 out of 5 stars
    Reviewed on 5/28/2025

    Dr. Hamilton, provides adequate time and explanation, very kind and respectful.I have been seeing him for 26 years and he's seems to have empathy, concern, and provide essential medical advice.

    5 out of 5 stars
    Reviewed on 5/27/2025

    Dr. Hamilton is an excellent doctor. The very best! Knowledgeable and tries to work on a plan. Good follow up.

    5 out of 5 stars
    Reviewed on 5/14/2025

    Have always had the best experience with Dr. Hamilton. I've been seeing him for over 15 years

    5 out of 5 stars
    Reviewed on 4/30/2025

    Dr. Hamilton is the best doctor. He takes his time to listen to me and my family.

    5 out of 5 stars
    Reviewed on 4/23/2025

    Dr. Hamilton is hands down one of the best medical professionals I've dealt with.