COVID-19 Info: Masks are now optional for patients, visitors and staff. However, if you have a cough, fever or respiratory illness, please wear a mask.

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
Joanna A. Woodruff, MSN, AGPCNP
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