NPPES file of Aug 9, 2026

Max D. Koenigsberg, M.D.

Emergency Medicine Physician · Chicago, IL

Max D. Koenigsberg, M.D. is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1295762250, issued on Jun 27, 2006. Check the license (Illinois 036-060719, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295762250
Name
Max D. Koenigsberg
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
036-060719 IL
Self-reported in NPPES; status is on the state search
Practice location
836 W Wellington Ave, Chicago, IL 60657
Phone
(773) 296-7054
Enumerated
Jun 27, 2006
Record last updated
Feb 4, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(773) 296-7818
Medicaid ID
036-060719 IL
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 836 W Wellington Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hasan Abad, D.O.Hospitalist Physician1356872006
  2. Misha Abbasi, MDHospitalist Physician1770111635
  3. Karim Abou El JoudHospitalist Physician1770043895
  4. Nasser Abualhassan, M.D.Student in an Organized Health Care Education/Training Program1700173127
  5. Swapnil Adhav, M.D.Surgery Physician1285942292
  6. Ahsan AdilAnesthesiology Physician1174463772

Verify Max D. Koenigsberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036-060719
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Max D. Koenigsberg among 3,291 emergency medicine physician records in Illinois

Max D. Koenigsberg, 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 not. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 68% newer
  • In a Medicare fileNo · 80% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2015 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Michael Cromeans, M.D.Chicago, IL 606571316978240
  2. Bikram Dhillon, M.D.Chicago, IL 606571396788006
  3. Richard Feldman, M.D.Chicago, IL 606571396786844
  4. Jason Gosnell, M.D.Chicago, IL 606571902807290
  5. Rahul Khare, MDChicago, IL 606571043248743
  6. Eddie Markul, M.D.Chicago, IL 606571972503886
  7. Timothy Rittenberry, M.D.Chicago, IL 606571457307555
  8. Daniel Ross, MDChicago, IL 606571245211606

Common questions

What is Max D. Koenigsberg, M.D.'s NPI number?

Max D. Koenigsberg, M.D.'s National Provider Identifier (NPI) is 1295762250, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Max D. Koenigsberg, M.D. located?

The NPPES record lists a practice address at 836 W Wellington Ave, Chicago, IL, 60657. Phone: (773) 296-7054. Providers update this record themselves, so call before visiting.

How can I verify Max D. Koenigsberg, M.D.'s license?

NPPES lists Illinois license number 036-060719, 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. 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.