Aileen Westrick
Endocrinology, Diabetes & Metabolism Physician · Carol Stream, IL
Aileen Westrick is an endocrinology, diabetes & metabolism physician with a practice address in Carol Stream, Illinois, and NPI 1770710493, issued on Jun 20, 2009. Check the license (Illinois 036129217, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Aileen Westrick
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 036129217 IL
Self-reported in NPPES; status is on the state search - Practice location
- 501 Thornhill Dr, Carol Stream, IL 60188
- Phone
- (630) 688-3210
- Enumerated
- Jun 20, 2009
- Record last updated
- Dec 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 036129217 IL
- Medicare enrollment
- Enrolled (PECOS I20140919000330); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →
Also registered at 501 Thornhill Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Bayer, MDEndocrinology, Diabetes & Metabolism Physician1528162898
- Mark Bednard, DOInternal Medicine Physician1346212503
- Manuel Calvillo, ATCSpecialist1801073556
- Chinar DesaiPhysical Therapist1962083030
- Virginia Dunsmore, M.A.Audiologist1396996518
- Susan Ignatius, MDInternal Medicine Physician1649374935
Verify Aileen Westrick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036129217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
5,182 Medicare Part D claims for 781 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Levothyroxine Sodium683 claims
- Metformin Hcl369 claims
- Ozempic247 claims
- Metformin Hcl Er217 claims
- Lantus Solostar205 claims
- Glimepiride187 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
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).
Industry payments in 2024: $154.49
2 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Central Dupage Physician GroupCarol Stream, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aileen Westrick among 436 endocrinology, diabetes & metabolism physician records in Illinois
Aileen Westrick is one of 436 endocrinology, diabetes & metabolism physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2009 · median 2006 among the 295 with a school on file
- Record last updated2014 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Illinois
There are 436 endocrinology, diabetes & metabolism physician records in Illinois.
All 436 in Illinois → Every provider in Carol Stream → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- William Bayer, MDCarol Stream, IL 601881528162898
- Faiza Anjum, MDWheaton, IL 601891235793225
- Adam Stein, MDWheaton, IL 601891316003833
- Lily Agrawal, M.D.Oakbrook Terrace, IL 601811922110394
- Maria Aguilera Astudillo, MDSycamore, IL 601781164040887
- Wendell Malalis, M.D.Sycamore, IL 601781962692418
- Disha Narang, M.D.Evanston, IL 602011235426230
- Hisham Swehli, MBBCHEvanston, IL 602021578242608
Common questions
What is Aileen Westrick's NPI number?
Aileen Westrick's National Provider Identifier (NPI) is 1770710493, issued on Jun 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Aileen Westrick located?
The NPPES record lists a practice address at 501 Thornhill Dr, Carol Stream, IL, 60188. Phone: (630) 688-3210. Providers update this record themselves, so call before visiting.
How can I verify Aileen Westrick's license?
NPPES lists Illinois license number 036129217, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Aileen Westrick prescribe under Medicare Part D?
In 2024, Aileen Westrick had 5,182 Medicare Part D claims for 781 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Aileen Westrick'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.