Wajahat Zafar Mehal, PhD, MD

Professor of Medicine (Digestive Diseases); Director of Yale Weight Loss Program; Director of Yale Fatty Liver Disease Program

Physician Biography

Our goal is to improve the health of your liver. We help patients with fatty Liver Disease, and also patients who are overweight. The two are closely linked as being overweight puts great stress on the liver and result in liver fibrosis and cirrhosis. We have non-invasive tests for diagnosing liver fibrosis so that a liver biopsy is not required. My team uses nutritional advice, medications, meal replacement and endoscopic procedures to help with weight loss. We also manage other liver conditions such as hepatitis B and C. We look forward to the opportunity to getting you back to health.

Patient Care

Accepts new patients? Yes
Patient Type: Adult
Referrals: MD to MD Consult

Patient Care Organizations

Internal Medicine: Digestive Diseases: Hepatology: Viral Hepatitis Program; Metabolic Health & Weight Loss Program | Liver Center

Transplantation Center

Yale Medicine

Office of Cooperative Research

Board Certifications

  • Gastroenterology AB of Internal Medicine (2001)

Clinical Trials

Conditions Study Title
Diseases of the Digestive System - Liver Phase 3 Study to Evaluate the Efficacy and Safety of Elafibranor Versus Placebo in Patients With Nonalcoholic Steatohepatitis (NASH) (RESOLVE-IT)
Diseases Of The Digestive System, Diseases of the Digestive System - Liver Randomized Global Phase 3 Study to Evaluate the Impact on NASH With Fibrosis of Obeticholic Acid Treatment (REGENERATE)

Edit this profile

Contact Info

Wajahat Zafar Mehal, PhD, MD
Patient Care Locations
Yale Digestive DiseasesDana Clinic Building
789 Howard Avenue, Ste 3rd Floor

New Haven, CT 06519
View on map...
Yale Metabolic Health & Weight Loss ProgramTemple Medical Center
40 Temple Street, Ste Suite 1A

New Haven, CT 06510
View on map...
Yale Digestive DisordersYale New Haven Hospital
20 York Street

New Haven, CT 06510
View on map...
Mailing Address
Digestive DiseasesPO Box 208056
333 Cedar Street

New Haven, CT 06520-8056

Curriculum Vitae