Kidney Disease 

Patient Care Team

Eduardo M. Perelstein, MD, MPH
Director, Division of Pediatric Nephrology

Oleh Akchurin, MD

Valerie L. Johnson, MD, PhD
Associate Attending Pediatrician

Juhi Kumar, MD, MPH
Assistant Attending Pediatrician

Hridya Suman, MD

Mary Montalvo
Division Administrator

Christa Gardner, RN
Registered Nurse

Wanda Grobelkiewicz
Senior Medical Secretary

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Division of Pediatric Nephrology
505 East 70th Street
Helmsley Tower, 3rd Floor
New York, NY 10021

Phone: (646) 962-4324
Fax: (646) 962-0246

For office hours and staff information, view our medical practice page.