NPPES file of Aug 9, 2026

Lauren Marissa Reilly, M.D.

Anesthesiology Physician · Chicago, IL

Lauren Marissa Reilly, M.D. is an anesthesiology physician with a practice address in Chicago, Illinois, and NPI 1639583586, issued on Jun 19, 2014. Check the license (Illinois 125065474, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639583586
Name
Lauren Marissa Reilly
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
125065474 IL
70260 WI
Self-reported in NPPES; status is on the state search
Practice location
1936 N Clark St Apt 728, Chicago, IL 60614
Phone
(239) 290-2739
Enumerated
Jun 19, 2014
Record last updated
May 8, 2023
Medicaid ID
1639583586 WI
Medicare enrollment
Enrolled (PECOS I20190123000071); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2014
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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Verify Lauren Marissa Reilly 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 125065474
    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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Bills Medicare through one group practice

  1. The Medical College OF Wisconsin IncMilwaukee, WI

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

Lauren Marissa Reilly among 2,575 anesthesiology physician records in Illinois

Lauren Marissa Reilly, M.D. is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 66% of them.

  • NPI issued2014 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2014 · median 2006 among the 1,608 with a school on file
  • Record last updated2023 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,113 anesthesiology physician records list a practice address in Chicago

They are 1,113 of the 63,379 NPPES records with a practice address in Chicago, and 2,575 anesthesiology physician records in Illinois.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Patrick Birmingham, M.DChicago, IL 606141093741977
  2. Steven Hall, M.DChicago, IL 606141538275649
  3. Paul Hertz, M.D.Chicago, IL 606141134162845
  4. Douglas Holmes, M.D.Chicago, IL 606141215106786
  5. Babette Horn, M.DChicago, IL 606141720015886
  6. Eryn Levis, MDChicago, IL 606141366514994
  7. Matthew Malters, MDChicago, IL 606141871676833
  8. Henry Przybylo, M.DChicago, IL 606141437185311

Common questions

What is Lauren Marissa Reilly, M.D.'s NPI number?

Lauren Marissa Reilly, M.D.'s National Provider Identifier (NPI) is 1639583586, issued on Jun 19, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Lauren Marissa Reilly, M.D. located?

The NPPES record lists a practice address at 1936 N Clark St Apt 728, Chicago, IL, 60614. Phone: (239) 290-2739. Providers update this record themselves, so call before visiting.

How can I verify Lauren Marissa Reilly, M.D.'s license?

NPPES lists Illinois license number 125065474, 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.

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.