Physician Bios

Anthony J. DiMarino, Jr., MD

Jefferson University Physician

  • Chair, Department of Gastroenterology
  • William Rorer Professor of Medicine
  • Chief, Division of Gastroenterology and Hepatology

Specialties

  • Gastroenterology
  • Consultive gastroenterology
  • Gastroenterology – Celiac, Nutrition, Eating Disorders
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – Inflammatory Bowel Disease ( Ulcerative Colitis & Crohn’s Disease )
  • Gastroenterology – Motility Disorders

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Howard Kroop, MD

Jefferson University Physician
Specialties

  • Gastroenterology
  • Gastroenterology – Inflammatory Bowel Disease
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – Liver Disease/Cancer
  • Gastroenterology – Hepatology
  • Gastroenterology – GI Cancers
  • Infectious Colitis
  • H.Pylori Gastritis
  • Celiac Disease
  • Colon Cancer Screening

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Jorge Prieto, MD

Jefferson University Physician

  • Clinical Assistant Professor of Medicine
  • Officer, Quality Assurance

Specialties

  • Gastroenterology
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – Liver Disease/Cancer
  • Gastroenterology – Hepatology
  • Gastroenterology – Inflammatory Bowel Disease
  • Gastroenterology – GI Cancers

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Mitchell I. Conn, MD

Jefferson University Physician

  • Department of Medicine
  • Divison of Gastroenterology and Hepatology
  • Clinical Associate Professor

Specialties

  • Gastroenterology
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – Pancreatic, Bile Duct & Gallbladder
  • Gastroenterology – GI Bleeding
  • Gastroenterology – Endoscopy
  • Gastroenterology – Liver Disease/Cancer
  • Gastroenterology – Hepatology
  • Gastroenterology – GI Cancers

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Robert M. Coben, MD

Jefferson University Physician

  • Jefferson Medical College
  • Department of Medicine
  • Associate Professor
  • Academic Coordinator, Gastroenterology and Hepatology Fellowship Program

Specialties

  • Gastroenterology
  • Consultative Gastroenterology
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – GI Cancers
  • Gastroenterology – Inflammatory Bowel Disease
  • Gastroenterology – Pancreatic, Bile Duct & Gallbladder
  • Gastroenterology – Liver Disease/Cancer
  • Gastroenterology – Hepatology
  • Interventional Endoscopy
  • Endoscopic Ultrasound
  • ERCP-Endoscopic Retrograde Cholangiopancreatography
  • Luminal Stent Placement
  • Gastrointestinal Bleeding
  • Gastrointestinal Motility Disorders
  • Medical student, resident, fellow, and patient education

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Jeffrey A. Abrams, MD

Jefferson University Physician

  • Clinical Assistant Professor of Medicine

Specialties 

  • Gastroenterology
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – Endoscopy
  • Gastroenterology – Hepatology
  • Gastroenterology – Liver Disease/Cancer

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Michael C. DiMarino, MD

Jefferson University Physician

  • Department of Medicine
  • Division of Gastroenterology and Hepatology
  • Clinical Assistant Professor of Medicine

Specialties

  • Gastroenterology
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – GI Cancers
  • Gastroenterology – Inflammatory Bowel Disease

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Nicholas T. Orfanidis, MD

Jefferson University Physician

  • Department of Medicine
  • Division of Gastroenterology and Hepatology
  • Clinical Assistant Professor of Medicine

Specialties

  • Gastroenterology
  • Gastroenterology – Celiac, Nutrition, Eating Disorders
  • Gastroenterology – Endoscopy
  • Gastroenterology – GI Cancers
  • Gastroenterology – Esophageal Disease/Cancer
  • Gastroenterology – Inflammatory Bowel Disease
  • Gastroenterology – GI Bleeding
  • Hepatology- Hepatitis B/C, Cirrhosis, etc

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Aarati B. Malliah, MD

Jefferson University Physician

  • Clinical Assistant Professor of Medicine

Specialties

  • Gastroenterology
  • Gastroenterology- Colon Cancer Screening, Esophageal disease/Cancer, 
  • Endoscopy, Inflammatory Bowel Disease, Irritable Bowel Syndrome, 
  • Womens gastrointestinal issues, GI Cancers, Liver disease/Cancer, Hepatology

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