NYC Health + Hospitals/Jacobi | North Central Bronx Appoints Robert Margolin, DDS As Chairperson and Josephine Sullivan, DDS as Vice Chair for the Department of Dentistry & Oral Maxillofacial Surgery
Both appointments became effective on January 16
Mar 18, 2026
Bronx, NY – Christopher Mastromano, CEO of NYC Health + Hospitals/Jacobi | North Central Bronx today announced the appointments of Robert Margolin, DDS as Chair of the Department of Dentistry & Oral Maxillofacial Surgery, and Josephine Sullivan, DDS as Vice Chair. Dr. Margolin succeeds Dr. Victor Badner, and Vice Chair is a new position Dr. Sullivan was elected into. Both appointments became effective on January 16.
Dr. Robert Margolin grew up in the Bronx, is a graduate of the University of Maryland School of Dentistry, and completed his General Practice Residency at Jacobi Hospital. He has worked at Jacobi Hospital since 2004 and became the hospital’s General Practice Residency Director in 2019. Before that, Dr. Margolin ran a private practice for 18 years and practiced at St. Barnabas Hospital for 19 years, where he led the General Practice Residency program for 15 years.
In addition to his extensive medical experience, Dr. Margolin has also held various positions in organized dentistry at the local, state, and national levels such as former President of the Bronx County Dental Society, past editor and President of the New York State Academy of the General Dentistry in addition to serving on the New York State Dental Association Board of Trustees, American Dental Association Access and Prevention Council and the Dental Quality Alliance. Dr. Margolin is a fellow of the Academy of General Dentistry, the American College of Dentists, the International College of Dentists and the Pierre Fauchard Academy.
Dr. Josephine Sullivan, also born and raised in the Bronx, has been appointed as Vice Chair for the department after holding the position of Assistant Director of the General Practice Program at NYC Health + Hospitals/Jacobi | North Central Bronx since 2004. Dr. Sullivan obtained her DDS at SUNY Stony Brook in 2001 in addition to completing a 2-year general practice residency at Montefiore Medical at Jacobi Hospital. She is a member of the American Dental Association with Bronx County and the 9th District, and she holds a position on the executive board for the Bronx County Dental Society. She has been a general practice attending at Jacobi and North Central Bronx Hospitals since 2004 in addition to practicing at Pelham Bay Dental Associates in the Bronx for over 20 years.
“We are proud to announce the appointments of Chairperson and Vice Chair for the Department of Dentistry & Oral Maxillofacial Surgery,” said NYC Health + Hospitals/Jacobi | North Central Bronx CEO Christopher Mastromano.“Dr. Robert Margolin is a wonderful example of someone who volunteered in the community, received their training at this facility, and is now leading the department as Chairperson. We have no doubt Dr. Margolin will bring those experiences with him when leading in the department. To support Dr. Margolin’s role, Dr. Josephine Sullivan has been elected to Vice Chair. With over 20 years at Jacobi Hospital, in addition to being born at this facility, it is truly a full circle moment electing Dr. Sullivan to this position. Congratulations to Dr. Robert Margolin and Dr. Josephine Sullivan.”
“It is a true honor to serve as Chair of the Dental Department at NYC Health + Hospitals/Jacobi | North Central Bronx. This institution holds a special place in my heart—not only did I complete my residency here, but Jacobi was also my local hospital growing up,” said NYC Health + Hospitals/Jacobi | North Central Bronx Chairperson for the Department of Dentistry & Oral Maxillofacial Surgery Dr. Robert Margolin.“Long before dental school, I volunteered in the oral surgery clinic at Jacobi Hospital and saw firsthand the dedication of the clinicians who cared for our community. Those experiences shaped my path in dentistry and my commitment to service. As Chair, together with the entire department, we are deeply committed to fostering outstanding resident education, delivering exceptional patient care and maintaining a welcoming, supportive environment where our doctors and staff can grow and thrive. Together, we will continue to build on Jacobi Hospital’s strong tradition of teamwork, excellence, innovation, and compassionate care for the patients and community we proudly serve.”
NYC Health + Hospitals/Jacobi | North Central Bronx Vice Chair for the Department of Dentistry & Oral Maxillofacial Surgery Dr. Josephine Sullivan said, “I am honored to be promoted to the position of the Assistant Chair to the Dental Department at NYC Health + Hospitals/Jacobi | North Central Bronx. I was born at Jacobi Hospital, and I have lived in this area my entire life. I am honored to be able to serve the community that has given so much to me. When I was a resident, I knew I would continue to work at this great faculty, and I have come full circle. I will continue to serve the patients and the community to my full capability. Thank you for this great opportunity.”
For more information on NYC Health + Hospitals/Jacobi | North Central Bronx, please contact (718) 918-5000 for Jacobi Hospital and (718) 519-5000 for North Central Bronx Hospital.
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MEDIA CONTACT: Catherine Diaz, NYC Health + Hospitals/Jacobi | North Central Bronx, 718-918-4879
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About NYC Health + Hospitals/Jacobi
NYC Health + Hospitals/Jacobi is a 457-bed teaching hospital affiliated with the Albert Einstein College of Medicine. The facility has earned numerous Center of Excellence designations, accreditation, and recognition for its renowned Level 1 Trauma Center, Burn Center, Surgical Intensive Care Unit, regional Stroke Center, Snakebite Treatment Center, Breast Health Center, Bariatric Surgery Center, and Cancer Service. The facility also offers the region’s only multi-person hyperbaric chamber, allowing up to nine patients to dive together at one time. Jacobi Hospital’s Ambulatory Care Pavilion is a stunning complement to its inpatient acute care, allowing staff to provide patients with high-quality service in a modern, state-of-the-art environment. For more information, visit www.nychealthandhospitals.org/jacobi.
About NYC Health + Hospitals/North Central Bronx
NYC Health + Hospitals/North Central Bronx is a member facility of the NYC Health + Hospitals system, one of eleven acute care facilities within the City of New York. A 215-bed community hospital, North Central Bronx Hospital specializes in women’s and children’s services. It also provides Behavioral Health acute and ambulatory care. Its busy outpatient department has led the way in community-based care delivered in a compassionate and culturally-appropriate manner. Its Labor and Delivery service safely brings more than 1,000 babies into the world each year. North Central Bronx Hospital is committed to providing safe, high-quality medical care for any and all in need. For more information, visit www.nychealthandhospitals.org/north-central-bronx.
About NYC Health + Hospitals
NYC Health + Hospitals is the largest municipal health care system in the nation serving more than a million New Yorkers annually in more than 70 patient care locations across the city’s five boroughs. A robust network of outpatient, neighborhood-based primary and specialty care centers anchors care coordination with the system’s trauma centers, nursing homes, post-acute care centers, home care agency, and MetroPlusHealth—all supported by 11 essential hospitals. Its diverse workforce of more than 46,000 employees is uniquely focused on empowering New Yorkers, without exception, to live the healthiest life possible. For more information, visit www.nychealthandhospitals.org and stay connected on Facebook, Twitter, Instagram and LinkedIn.