Top experts by indication / Nephrology
Most active experts in ESRD / Dialysis
2026 edition, data as of October 26, 2026
529 key opinion leaders in the directory are tagged to ESRD / Dialysis. The tables below rank them by one public measure each: registered trials, citations, NIH awards and congress contributions. Each is a count from a named source, not a judgment about the person, and every row links a profile where the count can be checked.
Most registered trials
Registered clinical trials in this indication on which the person is a listed investigator, counted from ClinicalTrials.gov. 98 of the 529 people tagged to this indication have this count on record; the 25 highest are listed. Source: ClinicalTrials.gov.
| # | Expert | trials |
|---|---|---|
| 1 | Raymond PrattMD | 8 trials |
| 2 | Glenn ChertowStanford University School of Medicine, CA | 5 trials |
| 3 | Nathan LevinNYU Langone Health, NY | 5 trials |
| 4 | Ron WaldONTARIO | 4 trials |
| 5 | Peter KotankoNY | 4 trials |
| 6 | Chi-Yuan HsuCA | 4 trials |
| 7 | Jennifer FlytheUniversity of North Carolina at Chapel Hill, NC | 4 trials |
| 8 | David CharytanNYU Langone Health, NY | 4 trials |
| 9 | Ravi ThadhaniCedars-Sinai Medical Center and Cedars-Sinai Health System, MA | 4 trials |
| 10 | Ebele UmeukejeVanderbilt University Medical Center, TN | 3 trials |
| 11 | Stanley JordanCedars-Sinai Medical Center, CA | 3 trials |
| 12 | Dana MiskulinTufts Medical Center, MA | 3 trials |
| 13 | Deidra CrewsJohns Hopkins University School of Medicine, MD | 3 trials |
| 14 | Srinivasan BeddhuHuntsman Cancer Institute, University of Utah, UT | 3 trials |
| 15 | Jonathan HimmelfarbIcahn School of Medicine at Mount Sinai, NY | 3 trials |
| 16 | Laura DemberUniversity of Pennsylvania, PA | 3 trials |
| 17 | Jing ChenUT Southwestern Medical Center, TX | 3 trials |
| 18 | Aldo PeixotoYale School of Medicine, CT | 2 trials |
| 19 | Wael HusseinSatellite Healthcare, TN | 2 trials |
| 20 | Mariana MureaNC | 2 trials |
| 21 | Ian McCoyUniversity of California, San Francisco, CA | 2 trials |
| 22 | Kamyar Kalantar-ZadehCA | 2 trials |
| 23 | Barbara GillespieUniversity of North Carolina at Chapel Hill, NC | 2 trials |
| 24 | Katharine CheungUniversity of Vermont, VT | 2 trials |
| 25 | Jeffrey TestaniYale School of Medicine, CT | 2 trials |
Most cited
Citations to the person's whole published record in OpenAlex, not only their work in this indication, among the people with at least two registered trials in it. 27 of the 529 people tagged to this indication have at least 2 registered trials in it and this count on record; the 25 highest are listed. Source: OpenAlex.
| # | Expert | citations |
|---|---|---|
| 1 | Glenn ChertowStanford University School of Medicine, CA | 109,191 citations |
| 2 | Talat IkizlerVanderbilt University Medical Center, TN | 52,564 citations |
| 3 | Ravindra MehtaUniversity of California, San Diego, CA | 51,958 citations |
| 4 | Jonathan HimmelfarbIcahn School of Medicine at Mount Sinai, NY | 49,202 citations |
| 5 | Nathan LevinNYU Langone Health, NY | 46,783 citations |
| 6 | Ravi ThadhaniCedars-Sinai Medical Center and Cedars-Sinai Health System, MA | 44,328 citations |
| 7 | David CharytanNYU Langone Health, NY | 22,973 citations |
| 8 | Michael RoccoWake Forest University School of Medicine, NC | 22,964 citations |
| 9 | Nisha BansalUniversity of Washington, WA | 22,512 citations |
| 10 | Stanley JordanCedars-Sinai Medical Center, CA | 19,751 citations |
| 11 | Jing ChenUT Southwestern Medical Center, TX | 17,224 citations |
| 12 | Peter KotankoNY | 14,621 citations |
| 13 | Jeffrey TestaniYale School of Medicine, CT | 14,166 citations |
| 14 | Peter ReeseVanderbilt University Medical Center, TN | 13,869 citations |
| 15 | Laura DemberUniversity of Pennsylvania, PA | 13,259 citations |
| 16 | Deidra CrewsJohns Hopkins University School of Medicine, MD | 12,259 citations |
| 17 | Srinivasan BeddhuHuntsman Cancer Institute, University of Utah, UT | 12,063 citations |
| 18 | Ashwini SehgalThe MetroHealth System, OH | 9,202 citations |
| 19 | Jennifer FlytheUniversity of North Carolina at Chapel Hill, NC | 8,222 citations |
| 20 | Sagar NigwekarMassachusetts General Hospital, MA | 7,554 citations |
| 21 | Aldo PeixotoYale School of Medicine, CT | 4,611 citations |
| 22 | Baback RoshanravanUniversity of California, Davis, WA | 2,777 citations |
| 23 | Katharine CheungUniversity of Vermont, VT | 2,216 citations |
| 24 | Barbara GillespieUniversity of North Carolina at Chapel Hill, NC | 1,345 citations |
| 25 | Wael HusseinSatellite Healthcare, TN | 780 citations |
Most NIH awards
NIH awards on the person's record in NIH RePORTER, across all of their funded work, among the people with at least two registered trials in this indication. 27 of the 529 people tagged to this indication have at least 2 registered trials in it and this count on record; the 25 highest are listed. Source: NIH RePORTER.
| # | Expert | awards |
|---|---|---|
| 1 | Ravi ThadhaniCedars-Sinai Medical Center and Cedars-Sinai Health System, MA | 16 awards |
| 2 | Chi-Yuan HsuCA | 15 awards |
| 3 | Kamyar Kalantar-ZadehCA | 14 awards |
| 4 | Talat IkizlerVanderbilt University Medical Center, TN | 11 awards |
| 5 | Stanley JordanCedars-Sinai Medical Center, CA | 10 awards |
| 6 | Glenn ChertowStanford University School of Medicine, CA | 10 awards |
| 7 | Srinivasan BeddhuHuntsman Cancer Institute, University of Utah, UT | 10 awards |
| 8 | Nisha BansalUniversity of Washington, WA | 10 awards |
| 9 | Jeffrey TestaniYale School of Medicine, CT | 8 awards |
| 10 | Ashwini SehgalThe MetroHealth System, OH | 7 awards |
| 11 | Ravindra MehtaUniversity of California, San Diego, CA | 7 awards |
| 12 | Deidra CrewsJohns Hopkins University School of Medicine, MD | 6 awards |
| 13 | Laura DemberUniversity of Pennsylvania, PA | 6 awards |
| 14 | Jennifer FlytheUniversity of North Carolina at Chapel Hill, NC | 5 awards |
| 15 | David CharytanNYU Langone Health, NY | 5 awards |
| 16 | Ebele UmeukejeVanderbilt University Medical Center, TN | 4 awards |
| 17 | Michael RoccoWake Forest University School of Medicine, NC | 4 awards |
| 18 | Mariana MureaNC | 3 awards |
| 19 | Baback RoshanravanUniversity of California, Davis, WA | 3 awards |
| 20 | Sagar NigwekarMassachusetts General Hospital, MA | 3 awards |
| 21 | Jonathan HimmelfarbIcahn School of Medicine at Mount Sinai, NY | 2 awards |
| 22 | Nathan LevinNYU Langone Health, NY | 2 awards |
| 23 | Raymond PrattMD | 1 award |
| 24 | Ian McCoyUniversity of California, San Francisco, CA | 1 award |
| 25 | Katharine CheungUniversity of Vermont, VT | 1 award |
Most congress contributions
Congress abstracts and presentations attributed to the person and verified by DOI, across every meeting the directory tracks, among the people with at least two registered trials in this indication. 7 of the 529 people tagged to this indication have at least 2 registered trials in it and this count on record; the 7 highest are listed. Source: Congress abstracts, DOI-verified.
| # | Expert | contributions |
|---|---|---|
| 1 | Glenn ChertowStanford University School of Medicine, CA | 6 contributions |
| 2 | David CharytanNYU Langone Health, NY | 4 contributions |
| 3 | Ravi ThadhaniCedars-Sinai Medical Center and Cedars-Sinai Health System, MA | 4 contributions |
| 4 | Talat IkizlerVanderbilt University Medical Center, TN | 4 contributions |
| 5 | Jennifer FlytheUniversity of North Carolina at Chapel Hill, NC | 1 contribution |
| 6 | Baback RoshanravanUniversity of California, Davis, WA | 1 contribution |
| 7 | Nisha BansalUniversity of Washington, WA | 1 contribution |
Emerging
23 of the 529 carry the Emerging flag: publication and trial activity rising over the recent three years, in the top ten percent for growth among specialty peers at a similar career stage. Listed A to Z, not ranked; the flag is a yes or nothing, never a score. How the flag is computed.
| Marisol BetenskyFL |
| Dinesh ChatothFresenius Medical Care, GA |
| Vipul ChitaliaBoston University Chobanian & Avedisian School of Medicine, MA |
| Seth FurgesonDenver Health Medical Center, CO |
| Lorenzo GallonUniversity of Illinois College of Medicine (UI Health), IL |
| Nasrollah GhahramaniPennsylvania State University, PA |
| Koyal JainUniversity of North Carolina at Chapel Hill, NC |
| Natalie JayaramChildren's Mercy Hospital, MO |
| Jason KiddVirginia Commonwealth University, VA |
| Sheng KuoNew York Hospital Queens, NY |
| Dustin LeThomas Jefferson University, PA |
| Roy MarcusPA |
| Salim MujaisSumitomo Dainippon Pharma, IL |
| Subodh SaggiSUNY Downstate Health Sciences University, NY |
| Ankit SakhujaIcahn School of Medicine at Mount Sinai, NY |
| William SmoyerNationwide Children's Hospital, OH |
| Robert StarNational Institutes of Health, MD |
| Michelle StarrIndiana University Indianapolis, IN |
| Joseph VassalottiNational Kidney Foundation, NY |
| Kavitha VellankiLoyola University Medical Center, IL |
| Anuradha WadhwaLoyola University Medical Center, IL |
| Erica WinnickiUniversity of California, San Francisco, CA |
| Susan ZiolkowskiStanford University School of Medicine, CA |
How these tables are computed
The cohort is every profile in the directory tagged to ESRD / Dialysis, from the person's registered trials and published research. Only indications with at least 200 tagged people get a page; a smaller cohort would say more about the tag than about the people in it. Each table sorts the cohort by one count, highest first, with no weighting, no blending and no editorial pass. Ties are broken by the profile's stable internal id so the same counts always give the same order. A person with no count on record is left out of that table, not ranked last.
Citations, NIH awards and congress contributions are counts over a person's whole record, not their work in this indication alone, so those three tables are limited to the indication's investigators: people with at least 2 registered trials in it. Without that rule the most cited people in a cohort are the ones whose careers span many diseases, which is a fact about their careers, not about this field. The registered-trials table is the indication-scoped count itself and has no such limit.
The counts are recomputed on every publish and the page carries the date of the publish it was built from. Previous editions are superseded, not archived.
What is deliberately absent
Reported industry payments are on every profile but are not a table here: a count of payers is a fact, and ranking people by it reads as a judgment. Prescribing volume is part of the paid workspace. The directory's influence tier is a judgment and never orders a public page. Sources and methodology.
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