Clinical Leadership Team

Christopher Raio, MD, MBA

Chairperson of Emergency Medicine at Good Samaritan Hospital Medical Center

Dr. Raio currently serves as the Chief of Emergency Medicine for Catholic Health Services of Long Island and Chairperson of Emergency Medicine at Good Samaritan Hospital Medical Center. He completed his Bachelor of Arts in Political Science with honors at the University of Florida and graduated from the Howard University College of Medicine in 2000.  He later finished his Emergency Medicine residency training as chief resident at North Shore University Hospital in 2003 and pursued emergency ultrasound fellowship training the following year.  Dr. Raio received his MBA in Health Services Management with Distinction from Hofstra University in 2012. Prior to joining Progressive Emergency Physicians, Dr. Raio served as Vice Chairman of Emergency Medicine at the North Shore University Hospital in Manhasset, New York. He has extensive experience in Emergency Department operations and Observation Medicine, having also served as the Medical Director of North Shore’s Clinical Decision Unit. Dr. Raio is well-published and has held several academic appointments including Associate Professor of Emergency Medicine at The Hofstra North Shore-LIJ School of Medicine.  He also currently serves on the Board of Directors for the New York Chapter of the American College of Emergency Physicians.

Eric Decena, MD, FACEP, MBA

Vice Chairperson of Emergency Medicine at Good Samaritan Hospital Medical Center

Dr. Decena currently serves as the Vice Chairperson of Emergency Medicine at Good Samaritan Hospital Medical Center. He earned his medical degree from St. George’s University School of Medicine in 2001 and completed his residency training in Emergency Medicine at Stony Brook University. In 2017 he received his MBA in Multi-Sector Health Management from St George’s University. Dr. Decena currently has academic appointments as an Assistant Clinical Professor at the Stony Brook School of Medicine and NYCOM.

Reethamma Daniel, MD, FAAP

Vice Chairperson of Emergency Medicine at Good Samaritan Hospital Medical Center

Dr. Daniel is the Vice Chairperson for the Department of Emergency Medicine at Good Samaritan Hospital Medical Center. She earned her MBBS degree from the University of Calicut and completed a fellowship in pediatric emergency medicine at St. Luke’s/Roosevelt Hospital, NY. Currently, she is board certified in Pediatrics and Pediatric Emergency Medicine and serves as the Director of Pediatric Emergency Medicine. She began working at Good Samaritan in 1992 and was instrumental in developing the first Pediatric Emergency Department in Suffolk County in 1998.

Robert Bramante, MD, FACEP

Associate Chairperson of Emergency Medicine at Good Samaritan Hospital Medical Center

Dr. Bramante currently serves as the Associate Chairman at Good Samaritan Hospital Medical Center. He graduated from Drexel College of Medicine in 2007 and completed his residency in Emergency Medicine at North Shore University Hospital. Following his residency, he completed a fellowship in Emergency Ultrasound at North Shore University Hospital. Dr. Bramante currently holds an academic appointment as a Clinical Associate Professor of Emergency Medicine at NYCOM and is an active member of the American College of Emergency Physicians.

Steven Sattler, DO, FACOEP

Director of the Clinical Decision Unit at Good Samaritan Hospital Medicine Center

Dr. Sattler currently serves as Director of the Clinical Decision Unit at the Good Samaritan Hospital Medical Center Emergency Department. Additionally, he serves as the Research Director and is a member of the Core Faculty for the Emergency Medicine Residency Program. Dr. Sattler completed his medical degree at the New York College of Osteopathic Medicine in 2004. He completed his residency training in the combined Emergency Medicine/Internal Medicine program at St. Barnabas Hospital in the Bronx, NY. He is an active member of ACOEP and has an academic appointment as Assistant Clinical Professor at NYCOM.

Joseph Chirayil, MD

Chairperson of Emergency Medicine at St. John’s Episcopal Hospital

Dr. Chirayil is the Chairperson of Emergency Medicine at St. John’s Episcopal Hospital. He completed his undergraduate Biochemistry degree from New York University and a Doctor of Medicine degree from Wake Forest University in 2000. He completed an Emergency Medicine Residency at New York Downstate Medical Center & Kings County Hospital in Brooklyn, NY. Before coming to St. John’s, he worked as an attending Emergency Medicine Physician at Brooklyn’s Kings County Hospital and the VA. Dr. Chirayil served as an Assistant Professor of Emergency Medicine from 2004 to 2012 at the SUNY Downstate Hospital where he was named Teacher of the Year in 2009.

Joseph Zito, MD, MHA, EMT-P

Vice Chairperson of Emergency Medicine at St. John’s Episcopal Hospital

Dr. Joseph Zito currently serves as the Vice Chairman of Emergency Medicine at St. John’s Episcopal Hospital. Before serving as the Vice Chairman of Emergency Medicine at St. John’s Hospital, Dr. Zito worked alongside Dr. Mathew as the Associate Director of Emergency Medicine at St. Joseph Hospital.

Dr. Zito earned his medical degree from the Ross University School of Medicine. Prior to completing his medical degree, Dr. Zito completed the North Shore University Hospital training program to become a paramedic and completed his Master’s of Health Administration program at Hofstra University.

John Mathew, DO, FACOEP

Chairperson of Emergency Medicine at St. Joseph Hospital

Dr. Mathew currently serves as the Chairperson of the Emergency Department of St. Joseph Hospital in Bethpage, New York. He earned his Doctorate of Osteopathic Medicine from New York College of Osteopathic Medicine and completed his Internship and Residency in Emergency Medicine at St. Barnabas Hospital in the Bronx. Prior to serving as the Chairman at St. Joseph Hospital, Dr. Mathew served as the Associate Medical Director of Emergency Medicine at the Good Samaritan Hospital Medical Center from 2010 through 2012 and as the Associate Director of Emergency Medicine at Franklin Hospital.

Tadeusz Korszun, MD, RDMS, FACEP

Director of the Clinical Decision Unit at St. Joseph Hospital

Dr. Korszun currently serves as the Director of the Clinical Decision Unit at St. Joseph Hospital. Before serving as the Director of the Clinical Decision Unit at St. Joseph Hospital, Dr. Korszun worked as the Director of the Clinical Decision Unit at North Shore University Hospital in Manhasset, NY. He completed his medical education at Poznan University of Medical Sciences in Poznan, Poland in 1999. He successfully completed a Family Medicine residency at Glen Cove hospital and served as chief resident in his final year. Dr. Korszun additionally completed an emergency medicine residency at North Shore University Hospital at Manhassett and served as chief resident in the final year of residency. In 2015, Dr. Korszun also received his MBA in Healthcare Management from Hofstra University. Currently, Dr. Korszun serves as an assistant professor of Emergency Medicine at the Hofstra North Shore-Long Island Jewish School of Medicine.

Nenad Grlic, DO

Chairperson of Emergency Medicine at Mercy Hospital

Dr. Grlic is the Chairperson of Emergency Medicine. He completed his undergraduate Life Sciences degree and a Doctor of Osteopathic Medicine degree in an exceled seven-year program from New York Institute of Technology in Old Westbury in 1992. He completed a combined Emergency Medicine and Internal Medicine Residency at Long Island Jewish Medical Center in New Hyde Park, NY. Before coming to Mercy, he was the Associate Director of Emergency Medicine at Bronx Lebanon in the Bronx, NY. He has been at Mercy since July of 2006. Along with his family, he resides in Nassau County. Dr. Grlic is also fluent in Croatian.

Kurt Dischner, MD

Vice-Chairperson of Emergency Medicine at Mercy Hospital

Dr. Dischner is the Vice-Chairperson of Emergency Medicine at Mercy. He first gained an interest in Emergency Medicine while an Emergency Medical Technician for Amherst-Columbia Ambulance Service in his home town of Buffalo, NY. He is a graduate of SUNY at Geneseo where he received his undergraduate degree. He received his medical degree from SUNY Buffalo. He completed his Emergency Medicine Residency in June of 2005 at Thomas Jefferson University Hospital in Philadelphia. He has been an ER physician at Mercy since July of 2005. Dr. Dischner along with his family reside in Suffolk County, NY.

Veena Modayil, MD

Director of the Clinical Decision Unit at Mercy Medical Center

Dr. Veena Modayil currently serves as Director of the Emergency Department Observation Unit at Mercyl Medical Center. The majority of her clinical and administrative efforts are now dedicated towards observation medicine focusing on Clinical  Decision Unit operations and quality/performance improvement.

Dr. Modayil earned her medical degree from New York Medical College in 2006. She completed her residency training in Emergency Medicine at North Shore University Hospital and finished her fellowship training in Emergency Ultrasound the following year. Prior to joining Progressive, Dr. Modayil served as the Emergency Ultrasound fellowship Director at North Shore University Hospital and remains an active member of the emergency ultrasound community through ultrasound education of residents at the Good Samaritan Hospital Medical Center.

Stefan M. Muehlbauer, M.D., Ph.D., FACEP

Chairperson of Emergency Medicine at St. Francis Hospital

Dr. Muehlbauer is the Chairperson of Emergency Medicine and has extensive and wide-ranging medical experience, having served as an Assistant Professor of Emergency Medicine at North Shore University Hospital, where he was appointed to the core academic faculty, and also as the Emergency Medicine Clerkship Director and Emergency Department Sepsis Champion. Prior to that, he held an appointment to the academic faculty at Harvard Medical School, where he was an attending physician at Harvard affiliate hospitals, primarily Beth Israel Deaconess Medical Center. Dr. Muehlbauer also held an appointment as a Basic Science Investigator at the Center for Vascular Biology Research at Harvard Medical School.
Dr. Muehlbauer received his medical degree at the Albert Einstein College of Medicine, where he was a fellow of the Medical Scientist Training Program, and earned a Ph.D. in Microbiology and Immunology. His doctoral research focused on the mechanism and role of cell death in septic shock and systemic inflammation, with a focus on anthrax toxin. He completed his residency in Emergency Medicine at the Harvard Affiliated Beth Israel Deaconess Medical Center, where he was recognized with the clinical excellence award, the highest honor granted to a graduate of the program.

Scott Strumpfler, MD

Vice-Chairperson of Emergency Medicine and Medical Director of Observation Services at St Francis Hospital

Dr. Scott Strumpfler is a critical care specialist in Roslyn, New York and is Vice-Chairperson of Emergency Medicine at St. Francis Hospital. He received his medical degree from State University of New York Upstate Medical University and has been in practice for more than 20 years.

Brian Lee, MD

Chairperson of Emergency Medicine at Brookhaven Memorial Hospital Medical Center

Dr. Lee currently serves as the Chairperson of Emergency Medicine at Long Island Community Hospital. He completed his Bachelor of Science in Biological Science at Fordham University and graduated with Honors from Ross University School of Medicine in 2009. He completed his residency training at Maimonides Medical Center, graduating in 2012. Prior to joining Progressive Emergency Physicians, Dr. Lee served as Vice Chairman of Emergency Medicine at Brookhaven Memorial Medical Center from 2015 – 2018.
Dr. Lee is Board Certified by the American Board of in Emergency Medicine.

Adam Ash, DO, FACEP

Vice-Chairperson of Emergency Medicine at Brookhaven Memorial Hospital Medical Center

Dr. Ash currently serves as the Vice-Chairperson of Emergency Medicine at Brookhaven Memorial Hospital Medical Center. He graduated from the University of New England College of Osteopathic Medicine in 2003 and completed his Emergency Medicine residency at Seton Hall University in 2007. From 2007-2013, Dr. Ash served on active duty with the United States Army Medical Corps. Before joining Progressive, Dr. Ash was the Ultrasound Fellowship Director at the North Shore University Hospital and an Assistant Professor of Emergency Medicine at the Hofstra North Shore-Long Island Jewish School of Medicine.