Matthew Charles Kleinmaier, M.D.
Emergency Medicine Physician · Chicago, IL
Matthew Charles Kleinmaier, M.D. is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1497949911, issued on Aug 28, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Matthew Charles Kleinmaier
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- Practice location
- 259 E Erie St, Chicago, IL 60611
- Phone
- (312) 926-9512
- Enumerated
- Aug 28, 2007
- Record last updated
- Aug 28, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 259 E Erie St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Charles Kleinmaier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average emergency medicine physician in 2024
292 Medicare Part D claims for 188 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 42 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen23 claims
- Prednisone23 claims
- Azithromycin20 claims
- Clindamycin Hcl19 claims
- Amoxicillin-Clavulanate Potass14 claims
- Levofloxacin12 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.
The MIPS final score for 2023 (Medicare payment program): 86.6 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).
Matthew Charles Kleinmaier among 3,291 emergency medicine physician records in Illinois
Matthew Charles Kleinmaier, M.D. 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 fileNo · 57% of these records are
- Record last updated2007 · 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).
1,310 emergency medicine physician records list a practice address in Chicago
They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
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- Matthew Kippenhan, MDChicago, IL 606111639106974
- Amy Kontrick, MDChicago, IL 606111215973367
- Theodore Koutouzis, MDChicago, IL 606111891773321
Common questions
What is Matthew Charles Kleinmaier, M.D.'s NPI number?
Matthew Charles Kleinmaier, M.D.'s National Provider Identifier (NPI) is 1497949911, issued on Aug 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Charles Kleinmaier, M.D. located?
The NPPES record lists a practice address at 259 E Erie St, Chicago, IL, 60611. Phone: (312) 926-9512. Providers update this record themselves, so call before visiting.
How can I verify Matthew Charles Kleinmaier, M.D.'s license?
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 Matthew Charles Kleinmaier, M.D. prescribe under Medicare Part D?
In 2024, Matthew Charles Kleinmaier, M.D. had 292 Medicare Part D claims for 188 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Matthew Charles Kleinmaier, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.6 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.