Michael A. Less, M.D
Anesthesiology Physician · Elmhurst, IL
Michael A. Less, M.D is an anesthesiology physician with a practice address in Elmhurst, Illinois, and NPI 1689600611, issued on Jun 23, 2006. Check the license (Illinois 036070085, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Michael A. Less
- Credential
- M.D
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 036070085 IL
Self-reported in NPPES; status is on the state search - Practice location
- 155 E Brush Hill RD, Elmhurst, IL 60126
- Phone
- (331) 221-1000
- Enumerated
- Jun 23, 2006
- Record last updated
- May 12, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20071108000608); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 in Illinois → Look up another NPI →
Also registered at 155 E Brush Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Albert Abalos, M.D.Emergency Medicine Physician1881983484
- Ahmad Ahmad, APN - CRNACertified Registered Nurse Anesthetist1144949678
- Syed Ahmed, DOHospitalist Physician1689311037
- Shah Alam, MDHospitalist Physician1164450672
- Muhammad Umer Altaf, MDHospitalist Physician1427542414
- Dominic Antonacci, MDDiagnostic Radiology Physician1487148870
Verify Michael A. Less 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 036070085Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average anesthesiology physician in 2024
40 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D.
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): 97.7 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
- University OF ChicagoChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael A. Less among 2,575 anesthesiology physician records in Illinois
Michael A. Less, 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1983 · median 2006 among the 1,608 with a school on file
- Record last updated2017 · 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).
30 anesthesiology physician records list a practice address in Elmhurst
They are 30 of the 1,540 NPPES records with a practice address in Elmhurst, and 2,575 anesthesiology physician records in Illinois.
All 2,575 in Illinois → Every provider in Elmhurst → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Andrew Belavic, M.DElmhurst, IL 601261841226776
- Val Evalen, M.DElmhurst, IL 601261699717413
- Laura Hahn, M.DElmhurst, IL 601261104852177
- Mahin Hamidi, M.DElmhurst, IL 601261326140369
- Akram Kareem, M.DElmhurst, IL 601261942237706
- Christine Kassa, M.DElmhurst, IL 601261639106404
- Richard Lenz, DOElmhurst, IL 601261538260815
- Maen Martini, MDElmhurst, IL 601261427016674
Common questions
What is Michael A. Less, M.D's NPI number?
Michael A. Less, M.D's National Provider Identifier (NPI) is 1689600611, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Less, M.D located?
The NPPES record lists a practice address at 155 E Brush Hill RD, Elmhurst, IL, 60126. Phone: (331) 221-1000. Providers update this record themselves, so call before visiting.
How can I verify Michael A. Less, M.D's license?
NPPES lists Illinois license number 036070085, 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 Michael A. Less, M.D prescribe under Medicare Part D?
In 2024, Michael A. Less, M.D had 40 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.
What is Michael A. Less, M.D's MIPS final score?
The 2023 MIPS final score is 97.7 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.