Our Physicians at Concorde Medical Group

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

Medical Doctors

John J. Ackert, MD

Gastroenterology

Luis Humberto Barraza, MD

Gastroenterology

Paul Marc Belsky, MD, FACC

Andrea Angelique Berger, MD, FACC

Elen Blochin, MD, PhD

Marylee Hoyle Dilling, MD, FAAP, FACP

Internal Medicine

Aeshita Dwivedi, MD, FACC

Jeffrey Matthew Engel, MD

Internal Medicine

Rachel Lisman Friedman, MD, FACOG

Christopher George, MD

Internal Medicine

Sophia Gigos-Costeas, MD, MPH, FAAP

Laura Guderian, MD, MPH

Internal Medicine

Dyan Sharone Hes, MD, FAAP

Colette Jenny Ho, MD

Internal Medicine

Sophia Hu, MD

Amy Pang-Fu Huang, MD

Internal Medicine

Katherine Keil, MD, MPH

Internal Medicine

Christina Hyun Sook Kwon, MD, FACOG

Gynecology, Gynecology & Urogynecology

Dorothy Louise Lebeau, MD, MPH

Internal Medicine

Veronica Tamara Lerner, MD, FACOG

Gynecology, Gynecology & Urogynecology

Yingheng Liu, MD, PhD

Gastroenterology

Paula Marchetta, MD, MBA

Arthritis & Rheumatic Diseases

Susan Gail Margolis, MD

Shareen Ruth Maryles, MD

David S. Mazza, MD

Allergy, Asthma & Clinical Immunology

Junko Nishita, MD, PhD

Lauren Brett Rosenberg, MD

Adina Malka Rosenzveig, MD

Daniel Ira Silvershein, MD, FACP

Internal Medicine

Paul Todd Smith, MD FACP

Infectious Diseases, Internal Medicine

Alan Spiegel, MD, FACC

Hillel Tobias, MD, PhD

Gastroenterology, Hepatology, Liver Disease

Catherine Ruth Weinberg, MD, MBA

Lori Sandra Weisenfeld, DPM

Daniel Wolloch, MD, FAAP

Advanced Clinical Providers

Marie A. Castronovo, MS,RN,FNP-BC

Endocrinology, Internal Medicine

Eleni El Grekos, MSN, AGNP-C

Pauline Higgins, RPA-C

Anna Litvin, PA

Gastroenterology, Hepatology, Liver Disease

Ndidi Okuesi, MSN, AGPCNP-BC

Rachel Schottenfeld, PA-C, MPH

Internal Medicine

Dina Shah, RN, ANP-C

Internal Medicine