Meet Our Team
Dedicated professionals committed to providing exceptional, compassionate care for your kidney health.


Claudia Zacharek MD
Founder & Lead Nephrologist
Claudia Zacharek MD
Founder & Lead Nephrologist
Board-certified nephrologist with over 25 years of experience treating complex kidney conditions and hypertension.
Expert Care
Board certified specialist
Research Focus
Leading clinical trials
Our Clinical Staff
Our dedicated team of nurses, coordinators, and medical assistants work together to ensure you receive the highest quality of care.

Wini Angir-Sisco, NP
Nurse Practitioner
Winnie is a dedicated Nurse Practitioner specializing in comprehensive kidney care, working closely with Dr. Zacharek.

Mark Kempf
Office nurse
Mark provides expert nursing care and support, ensuring our patients receive the highest quality of attention during their visits.

Rosemary Malloy
Practice Operations Manager
Rosemary oversees the daily operations of the clinic, ensuring a smooth and efficient experience for all our patients.

Julie Smith
Office Coordinator
Julie coordinates office activities and patient scheduling, providing a welcoming and organized environment.
Book an Appointment
Schedule a consultation with our clinic staff directly.
Select Date & Time
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Available Times for Apr 16, 2026
Join Our Team
We are always looking for passionate, skilled professionals to join our growing practice. If you are dedicated to patient care and medical excellence, we'd love to hear from you.
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