NPPES file of Aug 9, 2026

Lactation Consultant (Registered Nurse) in Illinois

202 NPPES records list lactation consultant (registered nurse) with a practice address in Illinois, 1.6 per 100,000 residents, the 13th highest rate of 51. Chicago and Champaign have the most; each record links to the provider's NPI and the Illinois license search. Page 5 of 5.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163WL0100X · 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, 41

  1. Chicago41
  2. Champaign16
  3. Peoria9
  4. Northbrook8
  5. Arlington Heights6

Lactation Consultant (Registered Nurse) records in Illinois

  1. Abaigeal ZieglerForsyth, IL 625351750244455
  2. Patricia Zillweger Kuehn, MSN, RN, IBCLCDeerfield, IL 600151720334402

Source: CMS NPPES, primary taxonomy 163WL0100X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 13 of 51 per resident

  1. Massachusetts1.7
  2. Oregon1.7
  3. Idaho1.6
  4. Illinois1.6
  5. Arizona1.6
  6. New Hampshire1.6
  7. 50 states and D.C.1.2

Source: CMS NPPES, primary taxonomy 163WL0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.5% of these records appear in a Medicare file, against 0.3% 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. Illinois0.5%
  2. United States0.3%

Lactation Consultant (Registered Nurse) records in Illinois, measured

  • In a Medicare file1 of 202 · 0.5% here, 0.3% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.1% nationally
  • Not updated in five years or more56 · 27.7% here, 43.1% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163WL0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

202 NPPES records list lactation consultant (registered nurse) (163WL0100X) as their primary taxonomy with a practice address in Illinois: 1.6 per 100,000 residents against 1.2 nationally (50 states and D.C.). Chicago has 41 of them (20%).

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. Florida208
  2. Virginia175
  3. New York237
  4. North Carolina154

States with a similar rate per 100,000

  1. Idaho1.6
  2. Arizona1.6
  3. New Hampshire1.6
  4. Kansas1.6

The largest states

  1. California443
  2. Texas321
  3. New York237
  4. Florida208
  5. Virginia175

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.