Administration

Anthony Boutin, MD, FACEP, FAAEM
President/Chief Executive Office of Nassau University Medical Center
- Staff Physician, Nassau University Medical Center
- Core Faculty, Emergency Medicine Residency
- Assistant Professor, Department of Emergency Medicine, Mount Sinai School of Medicine

Grace Ting, MD
Chief Medical Officer of Nassau University Medical Center
- Staff Physician, Nassau University Medical Center

Jessica Berrios, MD
Chair, Department of Emergency Medicine
- Staff Physician, Nassau University Medical Center
- Core Faculty, Emergency Medicine Residency
Residency Program Leadership

Dean Olsen, DO
Program Director, Emergency Medicine Residency
Director of Student Education, Clerkship Director
- Staff Physician, Nassau University Medical Center
- Faculty at New York City Poison Control Center
- Professor, NYIT College of Osteopathic Medicine

Roshan Givergis, DO, MPH
Program Director, Transitional Year Residency
Assistant Program Director, Emergency Medicine Residency
- Staff Physician, Nassau University Medical Center

Lyncean Ung, DO
Assistant Program Director, Emergency Medicine Residency
- Staff Physician, Nassau University Medical Center
- Adjunct Assistant Clinical Professor, NYIT College of Osteopathic Medicine
- Clinical Informatics Fellow, Stony Brook Medicine

Ryosuke Ito, DO
Assistant Program Director, Transitional Year Residency
- Staff Physician, Nassau University Medical Center
- Core Faculty, Emergency Medicine Residency

Neil Dasgupta, MD
Director of Emergency Critical Care
- Staff Physician, Nassau University Medical Center
- Core Faculty, Emergency Medicine Residency

Carl Mealie, MD
- Staff Physician, Nassau University Medical Center
- Core Faculty, Emergency Medicine Residency
ED Faculty

Yash Chavda, DO
- Staff Physician, Nassau University Medical Center

Stephanie Chiang, DO
- Staff Physician, Nassau University Medical Center

Eric Ciardullo, DO
- Staff Physician, Nassau University Medical Center

Gia Coleman, MD
- Staff Physician, Nassau University Medical Center

Mark Fonrose, MD
- Staff Physician, Nassau University Medical Center

Patricia Ford, MD
- Staff Physician, Nassau University Medical Center

Kyle Freiman, DO
- Staff Physician, Nassau University Medical Center

Eddy Jean-Baptiste, MD
- Staff Physician, Nassau University Medical Center

Olga Lisynak, DO
- Staff Physician, Nassau University Medical Center

Rijo Maracheril, MD
- Staff Physician, Nassau University Medical Center

Renzo Mieles, DO
- Staff Physician, Nassau University Medical Center

Toluwumi Olafisoye, MD
- Staff Physician, Nassau University Medical Center

Luke Palmisano, MD
- Staff Physician, Nassau University Medical Center

Leonid Rankov, MD
- Staff Physician, Nassau University Medical Center

Audrey Rochester, MD
- Staff Physician, Nassau University Medical Center

Gilberte Rosarian, MD
- Staff Physician, Nassau University Medical Center

Jatinder Singh, MD
- Staff Physician, Nassau University Medical Center

Scott D. Weingart, MD FCCM
Director of Clinical Education and Faculty Development
- Staff Physician, Nassau University Medical Center

Luis Carlos Zapata, MD
- Staff Physician, Nassau University Medical Center
Residency Program Staff