COVID-19 Info: All patients are required to wear a face mask prior to entering the office and keep the mask on at all times. Patients are allowed to attend their visit with one companion if needed for physical support. Thank you!

Meet the Team

Our Team

Nephrology Associates of Syracuse, PC is a group of six American Board of Internal Medicine (ABIM) certified Nephrologists, three nurse practitioners, and four physician assistants. We strive to provide the highest quality of care for our patients — our FIRST priority.

Our physicians, nurse practitioners, and physician assistants work collaboratively to provide the highest level of quality care.

Providers & Televisits

Our nurse practitioners and physician assistants play a vital role in the care of our patients at Nephrology Associates. They are each assigned to a physician and work with them in a collaborative approach to provide optimal care.

If you have a scheduled Televisit Appointment, please locate your provider’s picture and click on the Televisit link.

Antoine Azar, MD

Internal Medicine ~ Nephrology

Simardeep Mangat, MD

Internal Medicine ~ Nephrology

Matthew G. Chaffin, MD

Internal Medicine ~ Nephrology

Bala Murthy, MD

Internal Medicine ~ Nephrology

Adebowale O. Oguntola, MD

Internal Medicine ~ Nephrology

Philip Ondocin, MD

Internal Medicine ~ Nephrology

Tracy Paddock-O’Neill, RPA-C
Alyssa Miles, RPA-C
Marcia H. Ryder, RN, ANP
Jacquelyn A. Spencer, RN, ANP-C
Chloe Mason, RPA – C


Anne E. Zaccheo, MBA, FACMPE

Practice Director

Cheryle Nieset, CRCP-P

Office/Billing Manager

Nasir Sohtra

Clinical Manager

Colleen Poirier

Laboratory Manager

Terrence St. Amour

Fiscal/HR Manager