Ross Scott Zeitlin
Radiation Oncology Physician · Chicago, IL
Ross Scott Zeitlin is a radiation oncology physician with a practice address in Chicago, Illinois, and NPI 1689051328, issued on May 1, 2015. Check the license (Illinois 036.152324, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ross Scott Zeitlin
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 036.152324 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1901 W Harrison St Ste LL-500, Chicago, IL 60612
- Phone
- (312) 864-3838
- Enumerated
- May 1, 2015
- Record last updated
- Aug 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200909003214); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 277 in Illinois → Look up another NPI →
Verify Ross Scott Zeitlin 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 036.152324Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average radiation oncology physician in 2024
83 Medicare Part D claims for 42 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl19 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): 84.6 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).
Bills Medicare through 2 group practices
- Cook CountyChicago, IL
- Cook Radiation Oncology SCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ross Scott Zeitlin among 277 radiation oncology physician records in Illinois
Ross Scott Zeitlin 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 2015, is newer than 77% of them.
- NPI issued2015 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2015 · median 2004 among the 184 with a school on file
- Record last updated2020 · 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
- Ross Abrams, M.D.Chicago, IL 606121356317564
- Sobiya Ansari, M.D.Chicago, IL 606121336554666
- Philip Blumenfeld, M.D.Chicago, IL 606121417397449
- Nathaniel Camden, MDChicago, IL 606121629502208
- Thomas Kim, M.D.Chicago, IL 606121932466208
- Mark Korpics, MDChicago, IL 606121407382526
- Gaurav Marwaha, M.D.Chicago, IL 606121669798062
- Christian Olortegui, M.D.Chicago, IL 606121033564018
Common questions
What is Ross Scott Zeitlin's NPI number?
Ross Scott Zeitlin's National Provider Identifier (NPI) is 1689051328, issued on May 1, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ross Scott Zeitlin located?
The NPPES record lists a practice address at 1901 W Harrison St Ste LL-500, Chicago, IL, 60612. Phone: (312) 864-3838. Providers update this record themselves, so call before visiting.
How can I verify Ross Scott Zeitlin's license?
NPPES lists Illinois license number 036.152324, 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 Ross Scott Zeitlin prescribe under Medicare Part D?
In 2024, Ross Scott Zeitlin had 83 Medicare Part D claims for 42 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Ross Scott Zeitlin's MIPS final score?
The 2023 MIPS final score is 84.6 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.