NPPES file of Aug 9, 2026

Registered Dietitian in Illinois

2,870 NPPES records list registered dietitian with a practice address in Illinois, 23 per 100,000 residents, the 22nd highest rate of 51. Chicago and Peoria have the most; each record links to the provider's NPI and the Illinois license search. Page 58 of 58.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 133V00000X · 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, 935

  1. Chicago935
  2. Peoria65
  3. Naperville60
  4. Springfield60
  5. Hines58

Registered Dietitian records in Illinois

  1. Jesell Zepeda, RDWoodstock, IL 600981083232680
  2. Erin Zepp, RDSpringfield, IL 627021700183480
  3. Carol Zhang, RDN, LDNChicago, IL 606401184411787
  4. Jean Ziegenhorn, MS, RDN, LDNChicago, IL 606061538647482
  5. Kelly Ziemkiewicz, RDN, LDN, CDCESChicago, IL 606131417709155
  6. Steven ZigantoGlen Ellyn, IL 601371679025712
  7. Carly Zimmer, MS, RD, LDNPontiac, IL 617641184443210
  8. Kelly Zimmerman, MS, MPH, RDHines, IL 601411669249561
  9. Samantha Zimmerman, RD, LDCarbondale, IL 629011447759238
  10. Rebecca ZitellaChicago, IL 606471972470672
  11. Jessica Zlotek, RD LDNHinsdale, IL 605211689271637
  12. Lisa Zoberman, RD, LDNChicago, IL 606371356483408
  13. Carmyn Zoller, RD, LDNChicago, IL 606141720464662
  14. Karissa Zorn, RDChicago, IL 606141255914990
  15. Jennifer Zuercher, PHD, RD, LDNEdwardsville, IL 620251215720321
  16. Tricia Zuercher, R.D.Peoria, IL 616371629094123
  17. Gwen ZumwaltMattoon, IL 619381578899654
  18. Mary Zupke, MS, RDN, LDN, FANDGeneva, IL 601341861214306
  19. Amy Zurcher, RD LDNorth Chicago, IL 600641811003668
  20. Cindy-Lu Zwart, R.D., L.D.N., C.D.E.Melrose Park, IL 601601457367500

Source: CMS NPPES, primary taxonomy 133V00000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 22 of 51 per resident

  1. Pennsylvania24
  2. Colorado24
  3. Oklahoma23
  4. Illinois23
  5. Connecticut23
  6. Missouri22
  7. 50 states and D.C.20

Source: CMS NPPES, primary taxonomy 133V00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

7.8% of these records appear in a Medicare file, against 7.4% 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. Illinois7.8%
  2. United States7.4%

Registered Dietitian records in Illinois, measured

  • In a Medicare file224 of 2,870 · 7.8% here, 7.4% nationally
  • In the CMS Doctors and Clinicians file269 · 9.4% here, 9.8% nationally
  • Not updated in five years or more1,693 · 59.0% here, 56.3% nationally
  • Median graduation year2014 · the 269 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 133V00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,870 NPPES records list registered dietitian (133V00000X) as their primary taxonomy with a practice address in Illinois: 23 per 100,000 residents against 20 nationally (50 states and D.C.). Chicago has 935 of them (33%).

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. North Carolina2,704
  2. Pennsylvania3,083
  3. Ohio2,581
  4. Florida3,443

States with a similar rate per 100,000

  1. Connecticut22.8
  2. Oklahoma23.3
  3. Missouri22.1
  4. Colorado23.7

The largest states

  1. California7,148
  2. Texas5,099
  3. New York4,724
  4. Florida3,443
  5. Pennsylvania3,083

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.