The Largest Kidney Specialist Group in the U.S.

John Ducker MD

Each patient who comes to NANI will receive the best care, as an individual. NANI nephrologists and advanced practice clinicians are trained professionals in caring for kidney disease.
doctors discussing details
Hospital Affiliations:
  • DuPont Hospital – Lutheran
  • Lutheran Hospital Fort Wayne
  • Parkview Dekalb Hospital
  • Parkview Huntington Hospital
  • Parkview Lagrange Hospital
  • Parkview Noble Hospital
  • Parkview Ortho Hospital
  • Parkview Randallia Hospital
Dialysis Center Affiliations:
  • Fresenius Dekalb County
  • Fresenius Fort Wayne Dupont
  • Fresenius Fort Wayne Jefferson

Background

Medical School
  • Wright State University School of Medicine
Residency
  • Indiana University Medical Center
Fellowship
  • Indiana University Medical Center
Certifications
  • Medical director and primary transplant nephrologist for the Kidney Transplant Center at Lutheran Hospital

Offices

Jefferson Office
  • 7836 W Jefferson Blvd., Suite 101, Fort Wayne, IN 46804
  • Phone: 260-494-3484
  • Fax: 260-969-0188
  • Directions / Map
Dekalb Memorial Hospital
Parkview North Office
  • 11104 Parkview Circle, Ste. 330, Fort Wayne, IN 46845
  • Phone: 260-494-3484
  • Fax: 260-969-0188
  • Directions / Map

Nephrology Associates of Northern Illinois and Indiana

DoctorTemp- Your Journey, YOur Pace
Your Journey, YOur Pace

We focus on our patients and have the resources to offer them the best in kidney care. It’s all a part of NANI’s scope of excellent care and services.

doctor pointing to a model of a kidney
state-of-the-art services

Services may be in dialysis centers, vascular access surgicenters, nursing homes, hospitals and labs located conveniently to our patients.

DoctorTemp- Your Partners in recovery
Your Partners in recovery

Our doctors care for those with kidney disease, kidney injury, kidney transplant and difficult to control hypertension.