NPPES file of Aug 9, 2026

Becky Majernik, RD

Registered Dietitian · Glen Ellyn, IL

Becky Majernik, RD is a registered dietitian with a practice address in Glen Ellyn, Illinois, and NPI 1538187372, issued on Jul 18, 2006. Check the license (Illinois 164003184, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538187372
Name
Becky Majernik
Credential
RD
Primary taxonomy
Registered Dietitian 133V00000X
License number
164003184 IL
Self-reported in NPPES; status is on the state search
Practice location
430 Pennsylvania Ave, Glen Ellyn, IL 60137
Phone
(630) 469-9200
Enumerated
Jul 18, 2006
Record last updated
Jul 13, 2023
Medicare enrollment
Enrolled (PECOS I20040903001209); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest registered dietitian records → All 2,870 in Illinois → Look up another NPI →

Also registered at 430 Pennsylvania Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tahmineh Abbasian, M.D.Neonatal-Perinatal Medicine Physician1093716276
  2. Jana Alley, D.C.Chiropractor1760732168
  3. Marc Asselmeier, M.D.Orthopaedic Surgery Physician1245217272
  4. Dawn Beckman, MDAllergy & Immunology Physician1851379200
  5. Ciaran Bradley, M.D.Surgery Physician1518043603
  6. Walter Briney, M.D.Internal Medicine Physician1659365955

Verify Becky Majernik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 164003184    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Dupage Medical Group LtdGlen Ellyn, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Becky Majernik among 2,870 registered dietitian records in Illinois

Becky Majernik, RD is one of 2,870 registered dietitian records with a practice address in Illinois. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 91% newer
  • In a Medicare fileYes · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 9% of these records are
  • Graduated1997 · median 2014 among the 269 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 133V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

16 registered dietitian records list a practice address in Glen Ellyn

They are 16 of the 684 NPPES records with a practice address in Glen Ellyn, and 2,870 registered dietitian records in Illinois.

All 2,870 in Illinois → Every provider in Glen Ellyn → Registered Dietitian nationwide →

The 8 registered dietitian records with the nearest ZIP codes

  1. Claire Biga, MS, RDN, LDN, CLCGlen Ellyn, IL 601371992567184
  2. Lois Collins, R.D.Glen Ellyn, IL 601371922030535
  3. Lu Ann Dwyer Seibert, RN, CDEGlen Ellyn, IL 601371497034268
  4. Kelsey EstryGlen Ellyn, IL 601371972011229
  5. Allison GileGlen Ellyn, IL 601371396562054
  6. Catherine Gonzalez, M.S., R.D., L.D.N.,Glen Ellyn, IL 601371619278736
  7. Marissa Kelley, RD, CDCES, NBC-HWCGlen Ellyn, IL 601371942010178
  8. Catherine Leman, MA, RD, LDGlen Ellyn, IL 601371871847111

Common questions

What is Becky Majernik, RD's NPI number?

Becky Majernik, RD's National Provider Identifier (NPI) is 1538187372, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Becky Majernik, RD located?

The NPPES record lists a practice address at 430 Pennsylvania Ave, Glen Ellyn, IL, 60137. Phone: (630) 469-9200. Providers update this record themselves, so call before visiting.

How can I verify Becky Majernik, RD's license?

NPPES lists Illinois license number 164003184, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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

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.