Our Team

Gregory Kalmus, NHA, Administrator:

Sonya Burkes, Director of Nursing

As director of nursing for Opis Riverwood Center, Sonya is responsible for the nursing operations of Riverwood Center and ensuring that it provides quality health care achieving appropriate clinical outcomes while maintaining regulatory compliance.  Sonya has worked in healthcare for nearly 30 years.  During the past 16 years, Sonya has assumed a nursing role with increasing levels of responsibility transitioning from a Supervisor to an assistant director of nursing to the director of nursing all in the field of long-term care.

Dr. Vishen, Medical Director

As medical director, Dr. Vishen is responsible for the implementation of customer care policies and the coordination of medical care in the center.  Dr. Vishen completed his residency in internal medicine in 1997 at The Brooklyn Hospital Center, Brooklyn, NY, and became board certified in internal medicine scoring in the top 10 percent of scores, while obtaining both his permit to practice medicine in New York and his Florida license simultaneously.  He opened his medical practice in Orange Park, NY, in 2003.  He has privileges at multiple hospitals and other skilled nursing centers and has served as the chairman of medicine, vice chief of staff, and chief of staff at Orange Park Medical Center.  Dr. Vishen has been Medical Director at Riverwood Center since 2010.

Regina Owens, Admissions Director
Regina has over 20 years of healthcare experience, including healthcare insurance, as patient representative in the hospital setting.  At Riverwood Center, she is actively involved in the admission process, working with referral sources, families and insurance to guarantee the best experience for our new customers.