NPPES file of Aug 9, 2026

Timothy James Rittenberry, M.D.

Emergency Medicine Physician · Chicago, IL

Timothy James Rittenberry, M.D. is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1457307555, issued on May 26, 2006. Check the license 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
1457307555
Name
Timothy James Rittenberry
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
Practice location
836 W Wellington Ave, Chicago, IL 60657
Phone
(773) 296-7267
Enumerated
May 26, 2006
Record last updated
Jul 13, 2026
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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8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →

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 Timothy James Rittenberry in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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

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Timothy James Rittenberry among 3,291 emergency medicine physician records in Illinois

Timothy James Rittenberry, 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 updated2026 · 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.

All 3,291 in Illinois → Every provider in Chicago → Emergency Medicine Physician nationwide →

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. Max Koenigsberg, M.D.Chicago, IL 606571295762250
  7. Eddie Markul, M.D.Chicago, IL 606571972503886
  8. Daniel Ross, MDChicago, IL 606571245211606

Common questions

What is Timothy James Rittenberry, M.D.'s NPI number?

Timothy James Rittenberry, M.D.'s National Provider Identifier (NPI) is 1457307555, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Timothy James Rittenberry, M.D. located?

The NPPES record lists a practice address at 836 W Wellington Ave, Chicago, IL, 60657. Phone: (773) 296-7267. Providers update this record themselves, so call before visiting.

How can I verify Timothy James Rittenberry, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.