Faculty  Personal Bio

Michele Young, MD
Michele Young, MD

Chief, Gastroenterology Section, Carl T. Hayden VA Medical Center
Program Director, Gastroenterology Fellowship Program

Medical School: State University of New York at Stony Brook
Residency and GI Fellowship: University of Pittsburgh Medical Center
Clinical Interest: GI Motility, Inflammatory Bowel Disease and Colon Cancer Screening Strategies

​Mashal Jatoi Batheja, MD
​Mashal Jatoi Batheja, MD

Chief, Hepatology, Carl T. Hayden VA Medical Center
Clinical Assistant Professor of Medicine, UA College of Medicine – Phoenix

Medical School: University of Southern California
Internship and Residency: Northwestern University
Transplant Hepatology Fellowship: Mayo Clinic, Scottsdale, AZ
Gastroenterology Fellowship: Mayo Clinic, Scottsdale, AZ
Clinical Interest: Chronic Liver Diseases, Non-invasive Testing for Liver Fibrosis, Management of Hepatitis C, Nonalcoholic Fatty Liver Disease and Hepatocellular Carcinoma


Joseph David, MD

Site Director, Gastroenterology Fellowship, Banner – University Medical Center Phoenix
Clinical Assistant Professor, UA College of Medicine – Phoenix

Medical School: University of Missouri-Kansas City
Internship and Residency: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center), Phoenix VA Medical Center
Gastroenterology Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center), Phoenix VA Medical Center 
Clinical Interest: Upper GI Bleeding, Esophageal Mucosal Disease and General Gastroenterology

Richard Gerkin, MD
Richard Gerkin, MD

Medical Director of GME Research, Banner – University Medical Center Phoenix
Clinical Associate Professor of Medicine, UA College of Medicine – Phoenix

Medical School: UA College of Medicine – Tucson
Residency and Cardiology Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)
Clinical Interest: Assisting in Research Design, IRB Submission, Statistical Analysis and Manuscript Preparation of Studies for Faculty and Fellows in the GI Fellowship

Aaron Goldberg, MD
Aaron Goldberg, MD

Staff Gastroenterologist, Carl T. Hayden VA Medical Center
Clinical Assistant Professor, UA College of Medicine – Phoenix

Medical School: UA College of Medicine – Tucson
Residency: Beth Israel Deaconess Medical Center
GI Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)
Clinical Interest: Endoscopic Ultrasound, Inflammatory Bowel Disease, Barrett’s Esophagus and Colorectal Cancer Prevention

Camron Kiafar, DO, AGAF, FACG
Camron Kiafar, DO, AGAF, FACG

Chief of Endoscopy, Carl T. Hayden VA Medical Center
Clinical Assistant Professor, UA College of Medicine – Phoenix

Medical School: Western University of Health Sciences
Residency and GI Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)
Clinical Interest: Endoscopic Eradication of Barrett’s Esophagus, Colorectal Cancer Prevention and GI Malignancies

Derek Landan, MD
Derek Landan, MD

Staff Gastroenterologist, Carl T. Hayden VA Medical Center

Medical School: Northeastern Ohio University College of Medicine 
Residency: Summa Health System/Northeastern Ohio University 
GI Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)
Clinical Interest: Endoscopic Ultrasound and Biliary Endoscopy

Esther Little, MD, FACP
Esther Little, MD, FACP

Transplant Hepatologist, Banner Transplant Institute
Clinical Assistant Professor, UA College of Medicine – Phoenix

Medical School: University Federal da Bahia, Brazil
Residency: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)
GI Fellowship: University of Sao Paulo, Brazil
Hepatology Fellowship: University of Miami, Florida
Clinical Interest: Transplant Hepatology


Barbara MacCollum, MD

Arizona Digestive Health/Banner – University Medical Center Phoenix

Medical School: UA College of Medicine – Tucson
Residency: Maricopa Medical Center
GI Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)/Maricopa Medical Center
Clinical Interest: General Gastroenterology

Rakesh Nanda, MD, FACP, FACG
Rakesh Nanda, MD, FACP, FACG

Associate Program Director, Gastroenterology Fellowship Program
Staff Gastroenterologist, Carl T. Hayden VA Medical Center
Assistant Professor of Clinical Medicine, UA College of Medicine – Phoenix

Medical School: Maulana Azad Medical College, Delhi University, New Delhi
Residency: Pune University
GI Fellowship: Delhi University, followed by training at the John Radcliffe Hospital, Oxford, England and Completed training at Kansas University Medical Center
Clinical Interest: Endoscopic Eradication of Barrett’s Esophagus, Nutrition

Hugo Pinillos, MD, FACG
Hugo Pinillos, MD, FACG

Staff Gastroenterologist, Carl T. Hayden VA Medical Center
Clinical Assistant Professor of Medicine, UA College of Medicine – Phoenix

Medical School: Francisco Marroquin University, Guatemala 
Residency: Michael Reese Hospital /University of Illinois at Chicago 
GI Fellowship: St Luke’s – Roosevelt Hospital Center/Columbia University
Clinical Hepatology Fellowship: Mount Sinai Medical Center
Clinical Interest: Functional GI Disorders, Infectious GI Diseases and Capsule Endoscopy

Teodor Cristian Pitea, MD
Teodor Cristian Pitea, MD

Banner Internvional Endoscopy, Banner – University Medical Center Phoenix

Medical School: Iulio Hatienagu University, Romania
Residency and GI Fellowship: St Luke’s – Roosevelt Hospital Center/Columbia University
Advanced Endoscopy Fellowship: Winthrop University Hospital
Clinical Interest: Complex Endoscopic Procedures

Alberto Ramos, MD
Alberto Ramos, MD

Clinical Assistant Professor of Medicine, UA College of Medicine – Phoenix

Medical School: Ponce School of Medicine, Puerto Rico
Residency and GI Fellowship: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)/Phoenix VA
Clinical Interest: Transplant Hepatology and General Gastroenterology


Douglas Schwartz, MD

Arizona Digestive Health/Banner – University Medical Center Phoenix

Medical School: University of Maryland School of Medicine – Baltimore, 
Residency: Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)/Phoenix VA
GI Fellowship: Maricopa Medical Center/Banner – University Medical Center Phoenix (Formerly Banner Good Samaritan Medical Center)
Clinical Interest: General Gastroenterology

Anil Seetharam, MD
Anil Seetharam, MD

Clinical Assistant Professor of Medicine, UA College of Medicine – Phoenix
Transplant Hepatologist, Banner Transplant Institute

Medical School: University of Wisconsin School of Medicine and Public Health
Residency: Washington University/ Barnes-Jewish Hospital
GI and Hepatology Fellowship: Washington University/ Barnes-Jewish Hospital
Clinical Interest: Treatment of Viral Hepatitis Pre- and Post-liver Transplant, Hepatocellular Cancer, and Endoscopic Management of Portal Hypertensive-related Bleeding

Stacie Vela, MD, FASGE
Stacie Vela, MD, FASGE

Staff Gastroenterologist, Carl T. Hayden VA Medical Center

Medical School: The Ohio State University
Residency: University Hospitals/Case Western University
GI Fellowship: Medical University of South Carolina
Clinical Interest: Endoscopic Teaching, Pancreatic Diseases, Gastrointestinal Cancers and Advanced Endoscopic Techniques, Such as Endoscopic Ultrasound and Endoscopic Mucosal Resection