Wendy Piekarz, RD LDN
Registered Dietitian · Lake Forest, IL
Wendy Piekarz, RD LDN is a registered dietitian with a practice address in Lake Forest, Illinois, and NPI 1932578366, issued on Sep 16, 2015. Check the license (Illinois 1932578366, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Wendy Piekarz
- Credential
- RD LDN
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 1932578366 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 N Westmoreland RD # Level1, Lake Forest, IL 60045
- Phone
- (847) 535-7647
- Enumerated
- Sep 16, 2015
- Record last updated
- Nov 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (847) 535-8109
- Medicare enrollment
- Enrolled (PECOS I20201006001332); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 2,870 in Illinois → Look up another NPI →
Also registered at 1000 N Westmoreland RD # Level1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alyssa Brown, DNP, AGACNP-BCNurse Practitioner1497475594
- Madeline Ellis, DNP, AG-ACNP-BCNurse Practitioner1104653997
Verify Wendy Piekarz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 1932578366Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationGurnee, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wendy Piekarz among 2,870 registered dietitian records in Illinois
Wendy Piekarz, 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. Its NPI, issued in 2015, is newer than 38% of them.
- NPI issued2015 · 38% of these records are older, 57% newer
- In a Medicare fileYes · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 9% of these records are
- Graduated1988 · median 2014 among the 269 with a school on file
- Record last updated2020 · 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 Lake Forest
They are 16 of the 821 NPPES records with a practice address in Lake Forest, and 2,870 registered dietitian records in Illinois.
All 2,870 in Illinois → Every provider in Lake Forest → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Kathleen Abernathy, R.D., L.D.N.Lake Forest, IL 600451295020063
- Christina Baron, R.D.Lake Forest, IL 600451770879397
- Deborah Belcore, RD, LDNLake Forest, IL 600451467866541
- Colleen Deboer, RD, LDN, CDELake Forest, IL 600451275904112
- Mary Dipietro, RD, LDNLake Forest, IL 600451184278640
- Allison Hyzy, RDLake Forest, IL 600451134525462
- Meredith Justice, RD. LDNLake Forest, IL 600451922125194
- Jessica Larson, RD, LDNLake Forest, IL 600451033356852
Common questions
What is Wendy Piekarz, RD LDN's NPI number?
Wendy Piekarz, RD LDN's National Provider Identifier (NPI) is 1932578366, issued on Sep 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Wendy Piekarz, RD LDN located?
The NPPES record lists a practice address at 1000 N Westmoreland RD # Level1, Lake Forest, IL, 60045. Phone: (847) 535-7647. Providers update this record themselves, so call before visiting.
How can I verify Wendy Piekarz, RD LDN's license?
NPPES lists Illinois license number 1932578366, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
What is Wendy Piekarz, RD LDN's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.