Gary J. Schreiber, M.D.
Radiation Oncology Physician · Chicago, IL
Gary J. Schreiber, M.D. is a radiation oncology physician with a practice address in Chicago, Illinois, and NPI 1306899729, issued on May 18, 2006. Check the license (Illinois 036073255, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gary J. Schreiber
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 036073255 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5140 N California Ave Ste G115, Chicago, IL 60625
- Phone
- (773) 989-1613
- Enumerated
- May 18, 2006
- Record last updated
- Apr 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080117000092); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 277 in Illinois → Look up another NPI →
Also registered at 5140 N California Ave Ste G115
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Faye Ibanez, CNPNurse Practitioner1336623917
Verify Gary J. Schreiber 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 036073255Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average radiation oncology physician in 2024
61 Medicare Part D claims for 26 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Gary J. Schreiber among 277 radiation oncology physician records in Illinois
Gary J. Schreiber, 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 2006, is newer than 19% of them.
- NPI issued2006 · 19% of these records are older, 51% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1985 · median 2004 among the 184 with a school on file
- Record last updated2019 · 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.
All 277 in Illinois → Every provider in Chicago → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Donthamsetti Seshagirirao, MDChicago, IL 606221508819186
- Diana Chung, M.D.Chicago, IL 606311538150644
- Paul Schabinger, M.D.Chicago, IL 606311609867654
- Azhar AwanChicago, IL 606371497829725
- Steven ChmuraChicago, IL 606371629137161
- Philip ConnellChicago, IL 606371538228077
- Howard HalpernChicago, IL 606371447319983
- Daniel HarafChicago, IL 606371356400899
Common questions
What is Gary J. Schreiber, M.D.'s NPI number?
Gary J. Schreiber, M.D.'s National Provider Identifier (NPI) is 1306899729, issued on May 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary J. Schreiber, M.D. located?
The NPPES record lists a practice address at 5140 N California Ave Ste G115, Chicago, IL, 60625. Phone: (773) 989-1613. Providers update this record themselves, so call before visiting.
How can I verify Gary J. Schreiber, M.D.'s license?
NPPES lists Illinois license number 036073255, 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.
How much does Gary J. Schreiber, M.D. prescribe under Medicare Part D?
In 2024, Gary J. Schreiber, M.D. had 61 Medicare Part D claims for 26 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Gary J. Schreiber, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.3 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.