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Home » News » Richmond University Medical Center Welcomes New Leaders to Executive Team

Richmond University Medical Center Welcomes New Leaders to Executive Team

September 24, 2024

Richmond University Medical Center has announced the appointments of Jonathan Zipkin, MD, MA, as Executive Vice President and Chief Operating Officer; and Christine Mahoney, DNP, RN, AGACNP-BC, NEA-BC, CCRN as Senior Vice President and Chief Nursing Officer.

“Drs. Zipkin and Mahoney bring vast experience and knowledge to our hospital leadership team,” RUMC President and Chief Executive Officer Daniel J. Messina, PhD, FACHE, said. “Having worked for larger healthcare systems where they spearheaded initiatives designed to improve quality of care, patient experience, and every day hospital operations will only further those same dynamics and more here at RUMC.”

Dr. Zipkin comes to RUMC with a wealth of experience in data-driven systems analysis and clinical operations. Prior to his new role, he served as Chief Medical Officer, overseeing 275 outpatient on-demand healthcare facilities at 11 major health systems across the country, including all Northwell Health urgent care centers. Dr. Zipkin is double board certified in Internal Medicine and Pediatrics. He is passionate about clinical quality and antibiotic stewardship. He has also created numerous processes to improve patient outcomes, including processes that spanned across multiple health systems. 

Dr. Zipkin earned his undergraduate degree in Biology and Computer Science at Haverford College, a Master’s in Medical Science from Boston University, and his Medical Doctorate at the University of Pittsburgh. Dr. Zipkin previously served as a chief resident physician at Penn State Health. He has also been elected into the Gold Humanism Honor Society and Alpha Omega Alpha medical honor society. He earned the Urgent Care Association’s national Quality and Safety Award, and their Inspiring Excellence Award. He is a Fellow of the American College of Physicians and a Fellow of the American Academy of Pediatrics. 

“To me, RUMC represents high quality, compassionate care, deeply rooted in the history and people of Staten Island,” Dr. Zipkin said. “I’m greatly looking forward to serving the healthcare needs of our community.”

Dr. Mahoney is a highly respected nurse leader with over 25 years of experience in clinical nursing, healthcare management, and clinical operations. Before joining RUMC, Dr. Mahoney was the Chief Nursing Officer and Senior Vice President at Mount Sinai Beth Israel and Downtown, and the Vice President of Critical Care Nursing for the Mount Sinai Health System. She has also served in leadership roles at both New York University’s Langone Medical Center and New York-Presbyterian Hospital.  

Dr. Mahoney has a proven track record of improving patient care outcomes, leading multidisciplinary teams, and driving strategic initiatives within healthcare organizations. Throughout her career, she has successfully implemented patient safety protocols, streamlined hospital workflows, and participated in the development of standardized educational programs for both nursing staff and students.

She is an advocate for patient-centered care and healthcare innovation, frequently participating in initiatives to integrate technology and evidence-based practices into nursing care. Dr. Mahoney is also passionate about supporting the professional development of nurses, having served as a mentor to numerous emerging nurse leaders.  

Dr. Mahoney earned a Master of Science in Nursing from Hunter College in New York City, an Acute Care Nurse Practitioner Post-Master’s Statutory Certificate from Columbia University’s School of Nursing, and a Doctorate in Nursing Practice from Case Western Reserve University.  Her professional affiliations include the American Association of Critical Care Nurses (AACN), the American Nurses Association (ANA), the American Organization for Nursing Leadership (AONL), Sigma Theta Tau International Society, and the New York Organization for Nursing Leadership (NYONL) where she serves as Treasurer. In recognition of her contributions, she has been honored with multiple leadership and excellence in nursing awards.

“I look forward to working alongside dedicated professionals who strive to promote patient-centered care that engages patients and their families in care decisions to create a more holistic care experience and who continue to demonstrate a commitment to transparency and continuous improvement,” Dr. Mahoney said.


Richmond University Medical Center (RUMC), is a not-for-profit healthcare provider serving the ethnically diverse community of Staten Island and its neighbors. We provide premier-quality patient care through a full spectrum of emergent, acute, primary, behavioral health and educational services. We do this in an environment that promotes the highest satisfaction among patients, families, physicians and staff. For more information call 1-718-818-1234 or visit www.rumcsi.org. Follow us on Facebook, Instagram, LinkedIn, and Twitter.