Gregory J. Zweig, MD
Diagnostic Radiology Physician · Schaumburg, IL
Gregory J. Zweig, MD is a diagnostic radiology physician with a practice address in Schaumburg, Illinois, and NPI 1063598324, issued on Oct 30, 2006. Check the license (Illinois 036073392, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Zweig
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 036073392 IL
036-073392 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1834 Walden Office SQ, Schaumburg, IL 60173
- Phone
- (847) 397-2300
- Enumerated
- Oct 30, 2006
- Record last updated
- Feb 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (847) 397-6140
- Medicare enrollment
- Enrolled (PECOS I20070227000051); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1985
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,874 in Illinois → Look up another NPI →
Also registered at 1834 Walden Office SQ
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victor Mategrano, MDDiagnostic Radiology Physician1790708378
Verify Gregory J. Zweig 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 036073392Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Radiology Subspecialists OF Northern Illinois LLCGeneva, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory J. Zweig among 1,874 diagnostic radiology physician records in Illinois
Gregory J. Zweig, MD 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 54% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1985 · median 2004 among the 1,201 with a school on file
- Record last updated2008 · 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.
All 1,874 in Illinois → Every provider in Schaumburg → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Bilal Hai, MDSchaumburg, IL 601731578024865
- Victor Mategrano, MDSchaumburg, IL 601731790708378
- Hunaid Rana, MDSchaumburg, IL 601731720583354
- Donald Olofsson, D.O.Sycamore, IL 601781124057047
- Gustavo Saravia, MDVilla Park, IL 601811659353621
- Aakash Ahuja, M.D.Melrose Park, IL 601601275572331
- S. Chandra Mouli, M.D.Melrose Park, IL 601601306878434
- Stephanie Rosania, MDMelrose Park, IL 601601316098387
Common questions
What is Gregory J. Zweig, MD's NPI number?
Gregory J. Zweig, MD's National Provider Identifier (NPI) is 1063598324, issued on Oct 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Zweig, MD located?
The NPPES record lists a practice address at 1834 Walden Office SQ, Schaumburg, IL, 60173. Phone: (847) 397-2300. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Zweig, MD's license?
NPPES lists Illinois license number 036073392, 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 Gregory J. Zweig, MD's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.