Our Providers

The primary goal of Concorde Medical Group is to provide the highest quality medical care to our patients.

John J. Ackert, MD
Gastroenterology

Dina M. Began, MD
Dermatology

Jonathan Cohen, MD
Gastroenterology

Jeffery M. Engel, MD
Internal Medicine

Cesar Fors Nieves, MD
Arthritis & Rheumatic Diseases

Colette J. Ho, MD
Internal Medicine

Sheila E. Horn, DO
Rehabilitation & Physical Medicine

Amy P. Huang, MD
Internal Medicine

Katherine Keil, MD
Internal Medicine

Inessa Khaykis, MD
Gastroenterology

Heather Klavan, MD
Gastroenterology

Dorothy Lebeau, MD, MPH
Internal Medicine

Stuart Lewis, MD
Internal Medicine

Anna Litvin, PA
Liver Disease

Paula Marchetta, MD, MBA
Arthritis & Rheumatic Diseases

Richard K. Mark, MD, FACP
Internal Medicine

Shira Maryles, MD
Dermatology

David S. Mazza, MD
Asthma & Clinical Immunology

Caterina Oneto, MD
Gastroenterology

Valerie Peck, MD
Endocrinology

James M. Salik, MD
Gastroenterology

Lauren Schwartz, MD
Gastroenterology

Dina Shah, RN, ANP-C
Internal Medicine

Alex Sherman, MD
Gastroenterology

Eric H. Sherman, MD
Internal Medicine

Bruce M. Solitar, MD
Arthritis & Rheumatic Diseases

Nishant Vaidy, MD
Internal Medicine

David Wagner, MD
Internal Medicine

Stephen Waxman, MD
Internal Medicine

Scott Weber, MD
Gastroenterology

Susan B. Zweig, MD
Endocrinology