Joan Radeke Dannacher, MA, CCC-SLP, RD/LDN
NPI 1558559591 · Registered Dietitian · Clarendon Hills, IL
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joan Radeke Dannacher, MA, CCC-SLP, RD/LDN is a Registered Dietitian provider in Clarendon Hills, IL (NPI 1558559591).
Provider details
- NPI number
- 1558559591
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MA, CCC-SLP, RD/LDN
- Sex
- Female
- Sole proprietor
- No
- License
- 146003788 (IL)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-03
- Last updated
- 2008-11-17
Frequently asked questions
- What is Joan Radeke Dannacher's NPI number?
- Joan Radeke Dannacher's National Provider Identifier (NPI) is 1558559591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Radeke Dannacher's specialty?
- Joan Radeke Dannacher is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Joan Radeke Dannacher located?
- Joan Radeke Dannacher's practice location on file with NPPES is 106 Ann St, Clarendon Hills, IL 60514-1452.
- What is Joan Radeke Dannacher's phone number?
- The practice phone number listed in the NPPES registry for Joan Radeke Dannacher is (630) 926-8307.
- Does Joan Radeke Dannacher accept Medicare?
- Joan Radeke Dannacher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joan Radeke Dannacher's NPI active?
- Yes — Joan Radeke Dannacher's NPI (1558559591) is active in the NPPES registry as of the last update on 2008-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.