Leo Koenig, MD
Family Medicine Physician · La Grange, IL
Leo Koenig, MD is a family medicine physician with a practice address in La Grange, Illinois, and NPI 1013967322, issued on May 10, 2006. Check the license (Illinois 36051868, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leo Koenig
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 36051868 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1325 Community Memorial Dr, La Grange, IL 60525
- Phone
- (708) 245-8900
- Enumerated
- May 10, 2006
- Record last updated
- Mar 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (708) 245-5604
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1325 Community Memorial Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leo Koenig 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 36051868Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $103.23
1 payment: food and beverage; the largest payer was Edwards Lifesciences Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Leo Koenig among 6,215 family medicine physician records in Illinois
Leo Koenig, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 family medicine physician records list a practice address in La Grange
They are 25 of the 511 NPPES records with a practice address in La Grange, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in La Grange → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Guy Agostino, M.D.La Grange, IL 605251992769822
- Vince Bartolomeo, MDLa Grange, IL 605251275558629
- Christopher Brenner, MDCountryside, IL 605251629020102
- Daniel Chen, DOLa Grange Highlands, IL 605251356355812
- Michael Dupont, MDLa Grange Highlands, IL 605251508817750
- William Gros, M.D.La Grange, IL 605251316902919
- Daniel Hunter Smith, MDLa Grange, IL 605251619925963
- William Moran, D.O.La Grange, IL 605251407947187
Common questions
What is Leo Koenig, MD's NPI number?
Leo Koenig, MD's National Provider Identifier (NPI) is 1013967322, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leo Koenig, MD located?
The NPPES record lists a practice address at 1325 Community Memorial Dr, La Grange, IL, 60525. Phone: (708) 245-8900. Providers update this record themselves, so call before visiting.
How can I verify Leo Koenig, MD's license?
NPPES lists Illinois license number 36051868, 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.