Meet Our Nephrology Team
Kidney Disease Experts at BIDMC
Leadership
![](/-/media/images/beth-israel-org/team-members/pollak-martin-russell.jpg)
Martin Pollak, MD
Division Chief, Nephrology; Internal Medicine
![](/-/media/images/beth-israel-org/team-members/denker-bradley-mark.jpg)
Bradley Denker, MD
Clinical Chief, Nephrology
![](/-/media/images/beth-israel-org/team-members/lecker-stewart-h.jpg)
Stewart Lecker, MD, PhD
Program Director, Nephrology
Clinical Providers
![](/-/media/images/beth-israel-org/team-members/robert-cohen-resized.png)
Robert Cohen, MD
Nephrology
![Peter Czarnecki, MD](/-/media/images/beth-israel-org/team-members/silhouette-male/peter-czarnecki-md-2022-80x100px.gif)
Peter Czarnecki, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/danziger-john.jpg)
John Danziger, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/hoenig-melanie-paige.jpg)
Melanie Hoenig, MD
Nephrology; Internal Medicine
![Philip Kemp, MD](/-/media/images/beth-israel-org/team-members/philip-kemp-120x150.jpg)
Philip Kemp, MD
Nephrology
![Alexander Morales](/-/media/images/beth-israel-org/team-members/alexander-morales-120x150.jpg)
Alexander Morales, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/nasser-samer-s.jpg)
Samer Nasser, MD
Nephrology; Internal Medicine
![Nathan Raines, MD](/-/media/images/beth-israel-org/team-members/silhouette-male/nathan-raines-md-2022-80x100px.jpg)
Nathan Raines, MD
Nephrology; Internal Medicine
![Cristian Riella, MD](/-/media/rich-text-images/beth-israel-org/locations/clinical-services/specialty-care/cristian-riella-md-80x113px.jpg)
Cristian Riella, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/steinman-theodore-i.jpg)
Theodore Steinman, MD
Nephrology
![Joshua Waitzman, MD](/-/media/images/beth-israel-org/team-members/silhouette-male/joshua-waitzman-md-phd-80x100px-v2/joshua-waitzman-md-2023-80x100px.jpg)
Joshua Waitzman, MD, PhD
Nephrology
![Jeffrey William, MD](/-/media/rich-text-images/beth-israel-org/medical-education/medical-education-by-department/medicine/internal-medicine-residency-program/who-we-are/william-jeffrey-h.jpg)
Jeffrey William, MD
Nephrology; Internal Medicine
![](/-/media/rich-text-images/beth-israel-org/locations/clinical-services/silhouette-female/lisa-dumouchel-_80-by-100.jpg)
Lisa Dumouchel, NP
Transplant Nephrologists
![Amtul Aala, MD](/-/media/images/beth-israel-org/team-members/amtul-aal120px.jpg)
Amtul Aala, MD
Nephrology
![Bhavna Chopra, MD](/-/media/images/beth-israel-org/team-members/bhavna-chopra-md-120x150px.jpg)
Bhavna Chopra, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/pavlakis-martha.jpg)
Martha Pavlakis, MD
Nephrology
![Aditya Pawar, MD](/-/media/images/beth-israel-org/team-members/aditya-pawar-md-80x100px.jpg)
Aditya Pawar, MD
Nephrology
Research and Affiliated Faculty
![](/-/media/images/beth-israel-org/team-members/alper.jpg)
Seth Alper, MD, PhD
Nephrology
![](/-/media/rich-text-images/beth-israel-org/locations/clinical-services/silhouette-male/robert-brown.jpg)
Robert Brown, MD
Nephrology
![](/-/media/rich-text-images/beth-israel-org/locations/clinical-services/silhouette-male/davidfriedman.jpg)
David Friedman, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/rosas-sylvia-e.jpg)
Sylvia Rosas, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/stanton-robert-c.jpg)
Robert Stanton, MD
Nephrology
![](/-/media/images/beth-israel-org/team-members/williams-mark-e.jpg)
Mark Williams, MD
Nephrology
![](/-/media/rich-text-images/beth-israel-org/locations/clinical-services/silhouette-male/kambiz-zandi-nejad-3228-46488.jpg)
Kambiz Zandi-Nejad, MD
Nephrology