The Department of Medicine News and Events

Dr. Kehan Ren
Welcoming Dr. Kehan Ren, Division of Hematology Oncology

Posted by Internal Medicine on

Dear Department of Medicine Community:

We are excited to introduce a new faculty member in the Division of Hematology and Oncology. Kehan Ren, Ph.D. is an Assistant Professor of Medicine in the Renaissance School of Medicine at Stony Brook University and will also serve as Assistant Director of Basic Cancer Research within the Division of Hematology and Oncology.

Dr. Abigail Chua
Promotion of Abigail T. Chua, M.D., M.P.H., to Clinical Associate Professor of Medicine

Posted by Internal Medicine on

The Department of Medicine is pleased to announce the promotion of Abigail T.

Dr. Luis A. Marcos
Promotion of Luis A. Marcos, M.D., M.P.H., to Professor of Medicine with Tenure

Posted by Internal Medicine on

The Department of Medicine is pleased to announce the promotion of Luis A. Marcos, M.D., M.P.H., FIDSA, Division of Infectious Diseases, to Professor of Medicine with Tenure in the Renaissance School of Medicine at the State University of New York at Stony Brook.

Dr. Sarath G. Nath
Promotion of Sarath G. Nath, M.B.B.S., to Clinical Associate Professor of Medicine

Posted by Internal Medicine on

The Department of Medicine is pleased to announce the promotion of Sarath G. Nath, M.B.B.S., Division of Infectious Diseases, to Clinical Associate Professor of Medicine in the Renaissance School of Medicine at the State University of New York at Stony Brook.

Dr. Rajeev Rohatgi
Appointment of Dr. Rajeev Rohatgi, Chair of Medicine, Northport VAMC

Posted by Internal Medicine on

The Department of Medicine is pleased to announce the appointment of Rajeev Rohatgi, M.D., FASN, Professor of Medicine, to Chair of Medicine at the Northport VA Medical Center, Northport, New York.

Dr. Christopher Clarke
Promotion of Christopher J. Clarke, Ph.D., to Associate Professor of Medicine with Tenure

Posted by Internal Medicine on

The Department of Medicine is pleased to announce the promotion of Christopher J. Clarke, Ph.D., Division of Hematology and Oncology, to Associate Professor of Medicine with Tenure in the Renaissance School of Medicine at the State University of New York at Stony Brook. 

Dr. Sahar Ahmad
Promotion of Sahar Ahmad, M.D., to Professor of Medicine with Tenure

Posted by Internal Medicine on

The Department of Medicine is pleased to announce the promotion of Sahar Ahmad, M.D., Division of Pulmonary, Critical Care and Sleep Medicine to Professor of Medicine with Tenure in the Renaissance School of Medicine at the State University of New York at Stony Brook. 

US news and world report 2026 badge diabetes
The Department of Medicine U.S. News & World Report 2026

Posted by Internal Medicine on

Congratulations to the following Divisions in the Department of Medicine in the Renaissance School of Medicine at Stony Brook University for their 2026 U.S. News & World Report High-Performing Hospital distinctions:

Dr. Vincent Yang
Patent: Small Molecules for Cancer Therapy that Reduce the Expression of Transcription Factors KLF5 and EGR-1

Posted by Internal Medicine on

Dear Department of Medicine Community:

Dr. Ayse Bag Ozbek
Dr. Ayse Bag Ozbek Named Rheumatology Clinic Director

Posted by Internal Medicine on

December 23, 2025

Dear Members of the DOM Community: