Wendy Piekarz, LDN, RD

  • Lake Forest, IL
  • Registered dietitian
NPI1932578366PAC ID8628497971
Medicare patients, 2024
129
MIPS score, 2024
95
Hospital affiliations
1
Medical group
1
State license
1
Practice address
1000 N Westmoreland Rd, Lake Forest, IL 60045
Practice phone
Call (847) 234-5600
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Northwestern Catherine Gratz Griffin Lake Forest Hospital

Lake Forest, Illinois

See all 3 affiliations

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Wendy Piekarz is a registered dietitian in Lake Forest, Illinois

Wendy Piekarz practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.

Wendy Piekarz's NPI, 1932578366, was assigned on September 16, 2015. Wendy Piekarz holds Illinois license 1932578366.

NPI and contact details
Medicare PAC ID
8628497971
NPI enumeration date
September 16, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(847) 234-5600
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Wendy Piekarz practices at Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois

Wendy Piekarz's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital, at 1000 N Westmoreland Rd, Lake Forest, IL 60045 in Lake County. The practice phone is (847) 234-5600.

  • Northwestern Catherine Gratz Griffin Lake Forest Hospital
    1000 N Westmoreland Rd, Lake Forest, IL 60045 · Lake CountyPhone(847) 234-5600

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Wendy Piekarz is affiliated with 2 sites of care and 1 medical group

Wendy Piekarz's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois. Wendy Piekarz is also affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The medical group on file is Northwestern Medical Faculty Foundation.

See all 3 affiliations for Wendy Piekarz

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Wendy Piekarz's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Wendy Piekarz practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Northwestern Catherine Gratz Griffin Lake Forest HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Wendy Piekarz is one of 2,002 registered dietitians in Illinois

Dietitian, registered is Wendy Piekarz's primary specialty in the NPI Registry, under taxonomy code 133V00000X. Wendy Piekarz is licensed in Illinois.

Specialties and state licenses

  • Registered dietitian, IllinoisPrimaryLicense 1932578366 · taxonomy 133V00000X

Registered dietitians near Wendy Piekarz

Counts of registered dietitians with a Dmand AI profile, by place and practice. Each opens the list.

2,002registered dietitians in Illinois
3registered dietitians in Lake Forest

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Wendy Piekarz treated 129 Medicare patients in 2024, average age 71

CMS counts 129 Medicare patients who saw Wendy Piekarz in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have diabetes, and 75% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.86, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Wendy Piekarz's median patient age at 62, with 52% women.

Medicare patients, 2024129
Average age71
Average risk score1.86
Also on Medicaid16%

Wendy Piekarz's Medicare patients by age, 2024

Wendy Piekarz's Medicare patients by sex, 2024

  • Women5744%
  • Men7256%

Chronic conditions among Wendy Piekarz's Medicare patients, 2024

  1. Diabetes75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Arthritis49%
  5. Chronic kidney disease47%
  6. Ischemic heart disease47%
  7. Heart failure34%
  8. Anxiety31%

Share of Medicare patients with each condition. A patient can have several.

Wendy Piekarz's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women52%
  • Men48%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Wendy Piekarz scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Wendy Piekarz for performance year 2024, reported through an alternative payment model (APM). Wendy Piekarz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Wendy Piekarz as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Wendy Piekarz's MIPS scores, performance year 2024

  • 95of 100Final score
  • 83of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

Sources for Wendy Piekarz's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Wendy Piekarz

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Wendy Piekarz's NPI number?

Wendy Piekarz's NPI number is 1932578366. It was assigned on September 16, 2015, and it is active in the NPI Registry.

What does Wendy Piekarz specialize in?

Wendy Piekarz is a registered dietitian in Lake Forest, Illinois. The primary specialty in the NPI Registry is Registered Dietitian (taxonomy code 133V00000X).

Where does Wendy Piekarz practice?

Wendy Piekarz practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. Wendy Piekarz's primary practice is Northwestern Catherine Gratz Griffin Lake Forest Hospital in Lake Forest, Illinois.

What is Wendy Piekarz's office phone number?

The practice phone on file for Wendy Piekarz is (847) 234-5600.

What is Wendy Piekarz's medical license number?

Wendy Piekarz holds Illinois license 1932578366.

Which hospitals is Wendy Piekarz affiliated with?

Wendy Piekarz is affiliated with Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital.

What medical group is Wendy Piekarz part of?

Wendy Piekarz is linked to Northwestern Medical Faculty Foundation.

Does Wendy Piekarz accept Medicare?

Yes. CMS lists Wendy Piekarz as accepting Medicare assignment.

Does Wendy Piekarz offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Wendy Piekarz as offering telehealth services.

What is Wendy Piekarz's MIPS score?

Wendy Piekarz's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Wendy Piekarz see?

CMS counts 129 Medicare patients who saw Wendy Piekarz in 2024, with an average age of 71.

How long has Wendy Piekarz been practicing?

Wendy Piekarz graduated from medical school in 1988, 38 years ago.

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