NPPES file of Aug 9, 2026

Margaret R. Lheureux, MD

Obstetrics & Gynecology Physician · Chicago, IL

Margaret R. Lheureux, MD is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1801152103, issued on Apr 11, 2012. Check the license (Illinois 036140525, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801152103
Name
Margaret R. Lheureux
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036140525 IL
Self-reported in NPPES; status is on the state search
Practice location
680 N Lake Shore Dr Ste 824, Chicago, IL 60611
Phone
(312) 943-3300
Enumerated
Apr 11, 2012
Record last updated
May 14, 2026
Fax
(312) 266-4591
Medicare enrollment
Enrolled (PECOS I20160907000569); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 2012
Telehealth
Offers telehealth (CMS)
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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Also registered at 680 N Lake Shore Dr Ste 824

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Grace Lattner, WHNP-BCWomen's Health Nurse Practitioner1457169807
  2. Caitlyn Murdock, MDGynecology Physician1174101869
  3. Jenna Schermerhorn, APNObstetrics & Gynecology Nurse Practitioner1922499102

Verify Margaret R. Lheureux in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036140525
    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
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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55% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

74 Medicare Part D claims for 30 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Margaret Lheureux74
  2. Specialty average165

Most prescribed

  1. Estradiol23 claims
  2. Progesterone12 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.

Industry payments in 2024: $149.64

7 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Margaret Lheureux$149.64
  2. Specialty average$1,030.61

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

  1. Lakeshore Obstetrics And Gynecology LLCChicago, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Margaret R. Lheureux among 2,062 obstetrics & gynecology physician records in Illinois

Margaret R. Lheureux, MD is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 65% of them.

  • NPI issued2012 · 65% of these records are older, 33% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2012 · median 2006 among the 1,168 with a school on file
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

700 obstetrics & gynecology physician records list a practice address in Chicago

They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Angela Chaudhari, M.D.Chicago, IL 606111275596959
  2. April Dewhite, M.D.Chicago, IL 606111265415848
  3. Julie Ericson, M.D.Chicago, IL 606111588628754
  4. Patricia Gale, MDChicago, IL 606111437119229
  5. Micah Garb, M.D.Chicago, IL 606111225012362
  6. Parul Gupta, M.D.Chicago, IL 606111023001187
  7. Elena Kamel, M.D.Chicago, IL 606111790749463
  8. Julie Levitt, M.D.Chicago, IL 606111215991807

Common questions

What is Margaret R. Lheureux, MD's NPI number?

Margaret R. Lheureux, MD's National Provider Identifier (NPI) is 1801152103, issued on Apr 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Margaret R. Lheureux, MD located?

The NPPES record lists a practice address at 680 N Lake Shore Dr Ste 824, Chicago, IL, 60611. Phone: (312) 943-3300. Providers update this record themselves, so call before visiting.

How can I verify Margaret R. Lheureux, MD's license?

NPPES lists Illinois license number 036140525, 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 Margaret R. Lheureux, MD prescribe under Medicare Part D?

In 2024, Margaret R. Lheureux, MD had 74 Medicare Part D claims for 30 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions 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. 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.