NPPES file of Aug 9, 2026

Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN

Registered Dietitian · Clarendon Hills, IL

Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN is a registered dietitian with a practice address in Clarendon Hills, Illinois, and NPI 1558559591, issued on Oct 3, 2007. Check the license (Illinois 164004948, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1558559591
Name
Joan Helene Radeke Dannacher
Credential
MA, CCC-SLP, RD/LDN
Primary taxonomy
Registered Dietitian 133V00000X
License numbers
164004948 IL
146003788 IL
Self-reported in NPPES; status is on the state search
Practice location
106 Ann St, Clarendon Hills, IL 60514
Phone
(630) 926-8307
Enumerated
Oct 3, 2007
Record last updated
Nov 17, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(630) 789-2870
Medicare enrollment
Enrolled (PECOS I20251211002721); may accept 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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Verify Joan Helene Radeke Dannacher 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 164004948
    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
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Joan Helene Radeke Dannacher among 2,870 registered dietitian records in Illinois

Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN 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 not. Its NPI, issued in 2007, is newer than 9% of them.

  • NPI issued2007 · 9% of these records are older, 84% newer
  • In a Medicare fileNo · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 9% of these records are
  • Graduated1991 · median 2014 among the 269 with a school on file
  • Record last updated2008 · 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).

6 registered dietitian records list a practice address in Clarendon Hills

They are 6 of the 108 NPPES records with a practice address in Clarendon Hills, and 2,870 registered dietitian records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 registered dietitian records with the nearest ZIP codes

  1. Barbara Boules, RDN, CHCClarendon Hills, IL 605141376022467
  2. Trisha Lewin, MS, RD, LDNClarendon Hills, IL 605141346292380
  3. Megan Rhodes, RDNClarendon Hills, IL 605141285231324
  4. Ann Swank, RD, LDNClarendon Hills, IL 605141902286446
  5. Gabija Venckute, RDNClarendon Hills, IL 605141528509932
  6. Natalie Dekoker, RN, CDEDowners Grove, IL 605151679852446
  7. Briana Hanson, RDDowners Grove, IL 605151285699207
  8. Jean HealyDowners Grove, IL 605151326178385

Common questions

What is Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN's NPI number?

Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN's National Provider Identifier (NPI) is 1558559591, issued on Oct 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN located?

The NPPES record lists a practice address at 106 Ann St, Clarendon Hills, IL, 60514. Phone: (630) 926-8307. Providers update this record themselves, so call before visiting.

How can I verify Joan Helene Radeke Dannacher, MA, CCC-SLP, RD/LDN's license?

NPPES lists Illinois license number 164004948, 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. An NPI identifies who bills; it 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.