NPPES file of Aug 9, 2026

Nephrology Physician in Illinois

572 NPPES records list nephrology physician with a practice address in Illinois, 4.6 per 100,000 residents, the 12th highest rate of 51. Chicago and Evergreen Park have the most; each record links to the provider's NPI and the Illinois license search. Page 12 of 12.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Chicago has the most, 195

  1. Chicago195
  2. Evergreen Park19
  3. Maywood19
  4. Peoria19
  5. Joliet16

Nephrology Physician records in Illinois

  1. Marcia Wendland, MDBelleville, IL 622261194706564
  2. Bradford West, M.D.Springfield, IL 627021194969170
  3. William Whittier, MDChicago, IL 606071609981471
  4. Grady Wick, M.D.Elk Grove Village, IL 600071659575108
  5. Myles Wolf, MDChicago, IL 606111629069927
  6. Elaine WorcesterChicago, IL 606371568525087
  7. David Wright, MDRockford, IL 611071033131776
  8. Amr Yafi, M.D.Chicago, IL 606471558597047
  9. Neil Ybanez, MDEvergreen Park, IL 608051093885972
  10. Daniel Yohay, M.D.Flossmoor, IL 604221124123302
  11. Sylvia Yoon, M.D.North Chicago, IL 600641174513006
  12. Uzma Yousaf, M.D.Maywood, IL 601531376982082
  13. Mohammad Zafar, M.D.Bloomington, IL 617041568749265
  14. Mohammad Zahid, MDElgin, IL 601231225027873
  15. Waseem Zaid Alkilani, MDSouth Holland, IL 604731063897189
  16. Veronica Zamora-Olivencia, MDLake Forest, IL 600451689105181
  17. Anca Zegrean, M.D.Libertyville, IL 600481508009416
  18. Steven Zelman, M.D.Mount Vernon, IL 628641487618765
  19. Aseel Zghayer, MDChicago, IL 606121487386827
  20. Aileen Zhen, DOSpringfield, IL 627021174985998
  21. Demetrios Zikos, M.D.Evergreen Park, IL 608051508899105
  22. Wardah ZohaOlympia Fields, IL 604611831884683

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 12 of 51 per resident

  1. Rhode Island4.7
  2. Connecticut4.6
  3. Missouri4.6
  4. Illinois4.6
  5. Minnesota4.5
  6. Hawaii4.5
  7. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

87.1% of these records appear in a Medicare file, against 85.8% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Illinois87.1%
  2. United States85.8%

Nephrology Physician records in Illinois, measured

  • In a Medicare file498 of 572 · 87.1% here, 85.8% nationally
  • In the CMS Doctors and Clinicians file433 · 75.7% here, 76.0% nationally
  • Not updated in five years or more221 · 38.6% here, 54.9% nationally
  • Median graduation year2002 · the 433 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RN0300X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

572 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in Illinois: 4.6 per 100,000 residents against 4 nationally (50 states and D.C.). Chicago has 195 of them (34%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Ohio499
  2. Pennsylvania651
  3. New Jersey433
  4. Georgia417

States with a similar rate per 100,000

  1. Minnesota4.5
  2. Hawaii4.5
  3. Missouri4.6
  4. Connecticut4.6

The largest states

  1. California1,468
  2. Texas1,159
  3. New York1,049
  4. Florida840
  5. Pennsylvania651

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.