Faculty

Brief Bio

Joseph David, MD

Wahid Wassef, MD, MPH, FACG

Professor of Medicine, Division Chief – Gastroenterology and Hepatology
Medical Director, Digestive Diseases and Endoscopy, Banner – University Medical Center Phoenix

Medical School: Boston University Medical Center
Gastroenterology Fellowship: Rhode Island Hospital in the Brown University School of Medicine system
Pacreatico-Biliary Fellowship: Rhode Island Hospital in the Brown University School of Medicine system

Michael Fallon, MD

Michael Fallon, MD

Professor, Tenure - Internal Medicine
Executive Director for Clinical Research
Chair, Department of Medicine
Vice Dean, Clinical Affairs

Medical School: University of Virginia School of Medicine
Internal Medicine Residency: Yale New Haven Hospital
Gastroenterology Fellowship: Yale University School of Medicine
Specialties: Complications of cirrhosis, portal hypertension management, liver transplant evaluation, chronic liver disease, upper and lower endoscopy

Kevin Liu, MD

Kevin Liu, MD

Assistant Clinical Professor
Program Director, Advanced Endoscopy Fellowship

Medical School: Northwestern University, Feinberg School of Medicine
Internal Medicine Residency: Northwestern University, Feinberg School of Medicine
Gastroenterology Fellowship: Northwestern University, Feinberg School of Medicine
Advanced Endoscopy Fellowship: Northwestern University, Feinberg School of Medicine

Michael R. Mills, MD

Michael R. Mills, MD, MPH

Associate Clinical Professor, Clinical Series

Undergraduate: University of Arizona
Graduate: Tulane University School of Public Health and Tropical Medicine
Medical School: Tulane University School of Medicine
Internal Medicine Residency: University of Colorado School of Medicine
Gastroenterology Fellowship: University of Arizona Health Sciences Center, Carl T. Hayden VA Medical Center, Banner Good Samaritan Regional Medical Center
Specialties: Capsule endoscopy, colonoscopy now, endoscopic ultrasonography (EUS), ERCP, esophageal manometery, GERD, Remicade® infusion, upper GI endoscopy (EGD)

Mustafa Nawaz, DO

Mustafa Nawaz, DO

Assistant Clinical Professor, Clinical Series
Associate Program Director, Advanced Endoscopy Fellowship

Medical School: Midwestern University Chicago College of Osteopathic Medicine
Internal Medicine Residency: St James Hospital and Health Center
Gastroenterology Fellowship: Arizona Centers for Digestive Health
Advanced Endoscopy Fellowship: Arizona Centers for Digestive Health

Jen-Jung Pan, MD

Jen-Jung Pan, MD

Clinical Professor

Medical School: National Yang Ming University and State University of New York at Buffalo
Internal Medicine Residency: State University of New York at Buffalo
Gastroenterology Fellowship: University of Florida College of Medicine
Transplant Hepatology Fellowship: University of Florida College of Medicine
Specialties: Transplant hepatology, gastroenterology, internal medicine

Alberto Ramos, MD

Alberto Ramos, MD

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

Medical School: Ponce School of Medicine
Internal Medicine Internship: Banner – University Medical Center Phoenix
Internal Medicine Residency: Banner – University Medical Center Phoenix
Specialties: Management of cirrhosis, hepatocellular cancer, upper and lower endoscopy

Shiva K. Ratuapli, MD

Shiva K. Ratuapli, MD

Assistant Clinical Professor, Clinical Series

Medical School: Osmania Medical College
Internal Medicine Residency: Brookdale University Hospital and Medical Center
Advanced Fellowship in Gastroenterology Motility: Mayo Clinic Rochester
Gastroenterology Fellowship: Mayo Clinic Arizona
Specialties: Barrett's Esophagus, colonoscopy now, esophageal diseases, esophageal manometery, fecal transplant, hepatology and liver disease, pH monitoring, Remicade® infusion, smart pill, therapeutic endoscopy, upper GI endoscopy (EGD)

Nisha Sharma, MD

Nisha Sharma, MD

Assistant Clinical Professor, Clinical Series

Medical School: Grant Medical College, Mumbai, India
Internal Medicine Residency: Westchester Medical Center/ New York Medical College, Valhalla, New York
Gastroenterology Fellowship: Beaumont Hospital, Royal Oak, Michigan
Specialties: Gastroenterology including general GI, IBD and interventional endoscopy

Sakolwan Suchartlikitwong, MD

Sakolwan Suchartlikitwong, MD

Assistant Clinical Professor, Clinical Series

Medical School: Chulalongkorn University, Bangkok, Thailand
Internal Medicine Residency: Texas Tech University Health Sciences Center, Lubbock, Texas
Gastroenterology Fellowship: University of Arizona College of Medicine, Phoenix, Arizona
Specialties: General gastroenterology, swallowing and reflux diseases, foregut motility

Darrell D. Wadas, MD, FACG, FASGE, FACP

Darrell D. Wadas, MD, FACG, FASGE, FACP

Undergraduate: University of Colorado
Medical School: University of Colorado
Internal Medicine Residency: Good Samaritan Regional Medical Center
Gastroenterology Fellowship: Carl T. Hayden VA Medical Center
Specialties: Barrett's Esophagus, ERCP, open access colonoscopy, therapeutic endoscopy