John Klein
Surgery Physician · Chicago, IL
John Klein is a surgery physician with a practice address in Chicago, Illinois, and NPI 1669834313, issued on Mar 22, 2016. Check the license (Illinois 036170489, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- John Klein
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- 036170489 IL
179663 CA
MD494214 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1725 W Harrison St, Chicago, IL 60612
- Phone
- (312) 942-4252
- Enumerated
- Mar 22, 2016
- Record last updated
- Apr 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20241003002628); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2016
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 1725 W Harrison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Qurrat-Ul-Ain Abid, MDHospice and Palliative Medicine (Internal Medicine) Physician1053949024
- John Acheson, MDSurgery Physician1205528726
- David Agbunag, PA-CSurgical Physician Assistant1093885188
- Eda Akyar, MDSports Medicine (Family Medicine) Physician1255910006
- Jorelle Alexander, DMD,MPHDentist1972790756
- Amjad Ali, M.D.Specialist1952359184
Verify John Klein 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 036170489Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average surgery physician in 2024
56 Medicare Part D claims for 16 beneficiaries, against an average of 147 among the 20,115 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.
Bills Medicare through one group practice
- Rush University Medical GroupChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Klein among 1,520 surgery physician records in Illinois
John Klein is one of 1,520 surgery physician records with a practice address in Illinois. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 63% of them.
- NPI issued2016 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2016 · median 2004 among the 650 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Illinois
There are 1,520 surgery physician records in Illinois.
All 1,520 in Illinois → Every provider in Chicago → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Amelia BartholomewChicago, IL 606121447356886
- Steven Bines, MDChicago, IL 606121609833086
- Steven Bonomo, MDChicago, IL 606121861478893
- Diane Drugas, M.D.Chicago, IL 606121457436776
- Burnetta Herron, M.D.Chicago, IL 606121841211513
- Chad Kessler, MDChicago, IL 606121386624948
- Katherine Liu, M.D.Chicago, IL 606121184673832
- Elizabeth Marcus, MDChicago, IL 606121457464638
Common questions
What is John Klein's NPI number?
John Klein's National Provider Identifier (NPI) is 1669834313, issued on Mar 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is John Klein located?
The NPPES record lists a practice address at 1725 W Harrison St, Chicago, IL, 60612. Phone: (312) 942-4252. Providers update this record themselves, so call before visiting.
How can I verify John Klein's license?
NPPES lists Illinois license number 036170489, 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 John Klein prescribe under Medicare Part D?
In 2024, John Klein had 56 Medicare Part D claims for 16 beneficiaries; the average among surgery physician prescribers was 147. 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.