NPPES file of Aug 9, 2026

Brett Wayne Cox, M.D.

Radiation Oncology Physician · Chicago Ridge, IL

Brett Wayne Cox, M.D. is a radiation oncology physician with a practice address in Chicago Ridge, Illinois, and NPI 1811192099, issued on Jun 18, 2007. Check the license 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811192099
Name
Brett Wayne Cox
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
245000 NY
A83877 CA
Self-reported in NPPES; status is on the state search
Practice location
10400 Southwest Hwy, Chicago Ridge, IL 60415
Phone
(708) 888-8287
Enumerated
Jun 18, 2007
Record last updated
Apr 16, 2025
Medicare enrollment
Enrolled (PECOS I20200211000285); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 2002
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 10400 Southwest Hwy

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

  1. Aaron Berger, M.D.Urology Physician1720122005
  2. Karen Brann, APNFamily Nurse Practitioner1043676448
  3. John Defranco, MDUrology Physician1629008164
  4. Kermit Hoyme, MDUrology Physician1609812759
  5. Lily MalasPhysician Assistant1093563447
  6. Steven Pierpaoli, MDUrology Physician1891751566

Verify Brett Wayne Cox 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

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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60% fewer Medicare Part D claims than the average radiation oncology physician in 2024

54 Medicare Part D claims for 25 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Brett Cox54
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl52 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.

Industry payments in 2024: $417.46

4 payments; by number, the most common kind was food and beverage; the largest payer was Bioprotect Medical, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brett Cox$417.46
  2. Specialty average$1,897.85

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Uropartners LLCWestchester, IL

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

Brett Wayne Cox among 277 radiation oncology physician records in Illinois

Brett Wayne Cox, M.D. is one of 277 radiation oncology 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 2007, is newer than 49% of them.

  • NPI issued2007 · 49% of these records are older, 44% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2002 · median 2004 among the 184 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Illinois

There are 277 radiation oncology physician records in Illinois.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Robert Share, M.D.Chicago Ridge, IL 604151932109337
  2. Gregorio Tolentino, MDBlue Island, IL 604061336120807
  3. Tonya Cole, M.D.Harvey, IL 604261164423471
  4. Shankar Sanwalani, M.D.Harvey, IL 604261760482160
  5. Sulochana Yalavarthi, M.D.Harvey, IL 604261255331658
  6. Dennis Galinsky, MDBerwyn, IL 604021982605036
  7. Katherine Griem, MDBerwyn, IL 604021679574735
  8. Luke Miller, MDMacneal, IL 604021801107982

Common questions

What is Brett Wayne Cox, M.D.'s NPI number?

Brett Wayne Cox, M.D.'s National Provider Identifier (NPI) is 1811192099, issued on Jun 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Brett Wayne Cox, M.D. located?

The NPPES record lists a practice address at 10400 Southwest Hwy, Chicago Ridge, IL, 60415. Phone: (708) 888-8287. Providers update this record themselves, so call before visiting.

How can I verify Brett Wayne Cox, 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 Brett Wayne Cox, M.D. prescribe under Medicare Part D?

In 2024, Brett Wayne Cox, M.D. had 54 Medicare Part D claims for 25 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

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.