NPPES file of Aug 9, 2026

William Wesley Theodorou, M.D.

Diagnostic Radiology Physician · Chicago, IL

William Wesley Theodorou, M.D. is a diagnostic radiology physician with a practice address in Chicago, Illinois, and NPI 1063686624, issued on Apr 15, 2008. Check the license (Illinois 036.130614, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063686624
Name
William Wesley Theodorou
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
036.130614 IL
125.055740 IL
Self-reported in NPPES; status is on the state search
Practice location
1653 W Congress Pkwy, Chicago, IL 60612
Phone
(312) 942-5495
Enumerated
Apr 15, 2008
Record last updated
Feb 4, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20231013001041); accepts Medicare assignment
Medical or professional school
Indiana Medical College, School Of Medicine Of Purdue University, 2008
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1653 W Congress Pkwy

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

  1. Raid Abdulla, MDPediatric Cardiology Physician1710037742
  2. Pooja AgarwalPsychiatry Physician1407411689
  3. Heidi Aguilar, CRNACertified Registered Nurse Anesthetist1043703796
  4. Jenny AhnEmergency Registered Nurse1124836622
  5. Marwah Al Tekreeti, MDAnatomic Pathology & Clinical Pathology Physician1891539268
  6. Laila Abdulla Al-Harthy, RNRegistered Nurse1619832722

Verify William Wesley Theodorou 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 036.130614
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 80.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 8 group practices

  1. Advanced Imaging Center LLCSchererville, IN
  2. Golden State Imaging Associates IncCrown Point, IN
  3. Imaging Associates OF Indiana, PCCrown Point, IN
  4. Medical Imaging Associates OF Idaho Falls IncEvanston, WY
  5. Mountain Radiology IncCrown Point, IN
  6. N W Indiana Radiology Services, PCGary, IN
  7. Silicon Valley Diagnostic Imaging IncCrown Point, IN
  8. Sonoran Radiology LtdCrown Point, IN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Wesley Theodorou among 1,874 diagnostic radiology physician records in Illinois

William Wesley Theodorou, M.D. is one of 1,874 diagnostic radiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.

  • NPI issued2008 · 55% of these records are older, 40% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2008 · median 2004 among the 1,201 with a school on file
  • Record last updated2013 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Illinois

There are 1,874 diagnostic radiology physician records in Illinois.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Davide Bova, MDChicago, IL 606121346227212
  2. Michael Bresler, M.D.Chicago, IL 606121629023700
  3. James Bui, M.D.Chicago, IL 606121982652335
  4. Meri Chen, M.D.Chicago, IL 606121053369124
  5. Nestor Cuasay, MDChicago, IL 606121467450882
  6. Patrick Dunne, M.D.Chicago, IL 606121720027758
  7. Paul Erickson, M.D.Chicago, IL 606121720025422
  8. John Hibbeln, M.D.Chicago, IL 606121093773962

Common questions

What is William Wesley Theodorou, M.D.'s NPI number?

William Wesley Theodorou, M.D.'s National Provider Identifier (NPI) is 1063686624, issued on Apr 15, 2008. An NPI identifies a provider in billing; it is not a license.

Where is William Wesley Theodorou, M.D. located?

The NPPES record lists a practice address at 1653 W Congress Pkwy, Chicago, IL, 60612. Phone: (312) 942-5495. Providers update this record themselves, so call before visiting.

How can I verify William Wesley Theodorou, M.D.'s license?

NPPES lists Illinois license number 036.130614, 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.

What is William Wesley Theodorou, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.3 of 100, reported for the practice group. 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.