NHAPractice InfoChronic Kidney DiseaseDialysis/End Stage Renal DiseaseHypertensionStonesProviders' PagePORTAL
Our Clinical Staff


Kerry A. Hisko, RN, Office Nurse/Manager with the practice since 1986; Kerry previously was a CCRN certified staff nurse in the Coronary Care Unit at St. Peter's Medical Center.

Our Doctors
Andrew B. Covit, MD SUNY-Downstate Medical Center (Magna Cum Laude). Board-certified in Nephrology and Internal Medicine; Certified Clinical Hypertension Specialist, established Nephrology-Hypertension Associates of Central Jersey, PA. in 1985. after leaving the full-time faculty at the Cardiovascular-Hypertension Center at Cornell University Medical Center in New York City. Prior to that he completed his Internship and Residency in Internal Medicine and Nephrology fellowship training at New York Hospital-Cornell University Medical Center. He is presently a Clinical Associate Professor of Medicine at UMDNJ-Robert Wood Johnson Medical School, Division of Nephrology & Hypertension and Medical Director for three dialysis centers, DCI @ CentraState, St. Peters and Monroe. He has also served as Medical Staff President at Robert Wood Johnson University Hospital 1999-2009, spear-heading quality care and clinical documentation initiatives at that institution. Dr. Covit is a regular member of the "best doctors" lists for New Jersey, the New York Metropolitan area, and nationally.


Glenn A. Dubov, MD University of Health Science, Chicago Medical School. Board Certified in Nephrology and Internal Medicine. Joined the practice in 1988 after completing his Internal Medicine Internship and Residency at Long Island Jewish Hospital and Nephrology Fellowship training at Mt. Sinai Medical Center. Dr. Dubov is the Associate Medical Director for Home Dialysis at DCI/ North Brunswick and serves on the Quality Improvement Committee at Robert Wood Johnson University Hospital. He is a Clinical Assistant Professor of Medicine at UMDNJ-Robert Wood Johnson Medical School.


James J. Matera, DO University of Osteopathic Medicine and Health Sciences. Board Certified in Nephrology and Internal Medicine, Dr. Matera completed his Internal Medicine training at Union Hospital prior to his fellowship in Nephrology at UMDNJ-Robert Wood Johnson University Hospital. He joined the practice in 1994. He has served as chairman of Graduate Medical Education at CentraState Medical Center since 1996 and Chairman of Medicine of the hospital from 2001 until 2004. He is assistant Medical Director of the DCI @ CentraState Dialysis Unit. He served the Assistant Chief of Staff at CentraState from 2007-2008, Chief of Staff from 2008 through 2010, and has been elected Physician of the Year there in 2004 and again in 2007 by his peers. He has achieved the distinction of Fellow of the American College of Osteopathic Internists in 2005. He has been elected to the "Best Doctors" lists for the past 3 years.


Thomas E. Drabik, DO, RPh New York College of Osteopathic Medicine. He is Board Certified in Nephrology and Internal Medicine and retains his pharmacy licensure in New York and Pennsylvania. Prior to joining the practice in 1999, he completed his Internship and Residency at Union Hospital and his Nephrology Fellowship at UMDNJ-Robert Wood Johnson University Hospital. Dr. Drabik serves on the Nephrology Division Performance Improvement Committee of UMDNJ-Robert Wood Johnson University Hospital. He also serves on the Critical Care Committee of CentraState Hospital. He also achieved the distinction of Fellow of the American College of Osteopathic Internists and is the current Chair of the Nephrology Subsection. Dr. Drabik is an Assistant Clinical Professor of Medicine at New York College of Osteopathic Medicine.
Our Administrative Staff


Janet Parrilla: Office Manager; Janet joined the staff in 1993 as a medical assistant and now is responsible for all administrative duties

Rakesh C Patel: Coder/Billing joined the group in 2004
Our Hospitals and Dialysis Units


Robert Wood Johnson University Hospital
St. Peter's University Hospital
CentraState Medical Center
Raritan Bay Medical Center -Old Bridge Division

DCI-North Brunswick*
DCI-CentraState*
DCI-St. Peter's*
DCI-Monroe*
Davita-Old Bridge
Davita-Freehold
Davita-East Brunswick*
*denotes medical directorship

Nephrology-Hypertension Associates of Central Jersey, PA
8 Old Bridge Turnpike
South River, New Jersey 08882
Voice: 732-390-4888
Fax: 732-390-0255


Medical Arts Building
901 West Main Street
Freehold, New Jersey 07728
Voice: 732-625-0707