John Ken Lee, D.O.
Anesthesiology Physician · Barrington, IL
John Ken Lee, D.O. is an anesthesiology physician with a practice address in Barrington, Illinois, and NPI 1891794475, issued on Jul 18, 2005. Check the license (Illinois 036113245, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Ken Lee
- Credential
- D.O.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 036113245 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
- Jul 18, 2005
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 036113245 IL
- Medicare enrollment
- Enrolled (PECOS I20050624000657); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 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 John Ken 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 036113245Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Barrington Anesthesia Associates, SCBarrington, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Ken Lee among 2,575 anesthesiology physician records in Illinois
John Ken Lee, D.O. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2001 · median 2006 among the 1,608 with a school on file
- Record last updated2021 · 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).
21 anesthesiology physician records list a practice address in Barrington
They are 21 of the 756 NPPES records with a practice address in Barrington, and 2,575 anesthesiology physician records in Illinois.
All 2,575 in Illinois → Every provider in Barrington → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Eric Bessonny, M.D.Barrington, IL 600101336147156
- Amy Chhadia, M.D.Barrington, IL 600101649332586
- J. Feldman, M.D.Barrington, IL 600101306845169
- Michael Fox, M.D.Barrington, IL 600101104825967
- Mary Fugina, M.D. S.C.Barrington, IL 600101447259205
- Prabhakar Gupta GarlaBarrington Hills, IL 600101134288483
- Yaung Kim, M.D.Barrington, IL 600101114926862
- Paul Kuo, M.D.Barrington, IL 600101316140452
Common questions
What is John Ken Lee, D.O.'s NPI number?
John Ken Lee, D.O.'s National Provider Identifier (NPI) is 1891794475, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Ken 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 John Ken Lee, D.O.'s license?
NPPES lists Illinois license number 036113245, 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.