Len Michael Lee, D.O.
Emergency Medicine Physician · Barrington, IL
Len Michael Lee, D.O. is an emergency medicine physician with a practice address in Barrington, Illinois, and NPI 1598818395, issued on Jan 18, 2007. Check the license (Illinois 036089274, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Len Michael Lee
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036089274 IL
Self-reported in NPPES; status is on the state search - Practice location
- 450 W Highway 22, Barrington, IL 60010
- Phone
- (847) 381-9600
- Enumerated
- Jan 18, 2007
- Record last updated
- Oct 15, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060502000301); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 1990
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 450 W Highway 22
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tina Marie Bauman, RN, MSN, APN, AGN-BCClinical Nurse Specialist1407349343
- Eric Bessonny, M.D.Anesthesiology Physician1336147156
Verify Len Michael Lee 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 036089274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average emergency medicine physician in 2024
112 Medicare Part D claims for 81 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen17 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.
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationLake Forest, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Len Michael Lee among 3,291 emergency medicine physician records in Illinois
Len Michael Lee, D.O. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.
- NPI issued2007 · 32% of these records are older, 61% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1990 · median 2012 among the 1,867 with a school on file
- Record last updated2010 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 emergency medicine physician records list a practice address in Barrington
They are 15 of the 756 NPPES records with a practice address in Barrington, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Barrington → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Todd Bannen, M.D.Barrington, IL 600101952414682
- Marc Dorfman, MDBarrington, IL 600101912908583
- Mark Giacomin, DOBarrington, IL 600101215948153
- Viren Gohil, M.D.Barrington, IL 600101225081037
- Jeffrey Gordon, MDBarrington, IL 600101558308676
- David Greenberg, M.D.Barrington, IL 600101598705659
- Danish Haque, MDBarrington, IL 600101336193093
- Tracey Hashemi, MDBarrington, IL 600101508857905
Common questions
What is Len Michael Lee, D.O.'s NPI number?
Len Michael Lee, D.O.'s National Provider Identifier (NPI) is 1598818395, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Len Michael Lee, D.O. located?
The NPPES record lists a practice address at 450 W Highway 22, Barrington, IL, 60010. Phone: (847) 381-9600. Providers update this record themselves, so call before visiting.
How can I verify Len Michael Lee, D.O.'s license?
NPPES lists Illinois license number 036089274, 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 Len Michael Lee, D.O. prescribe under Medicare Part D?
In 2024, Len Michael Lee, D.O. had 112 Medicare Part D claims for 81 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.