Katarzyna Rojek
Internal Medicine Physician · Maywood, IL
Katarzyna Rojek is an internal medicine physician with a practice address in Maywood, Illinois, and NPI 1831688316, issued on May 9, 2018. Check the license (Illinois 036156586, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katarzyna Rojek
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036156586 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2160 S 1St Ave, Maywood, IL 60153
- Phone
- (708) 354-9250
- Enumerated
- May 9, 2018
- Record last updated
- May 27, 2022
- Fax
- (708) 354-8765
- Medicare enrollment
- Enrolled (PECOS I20211025002606); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2160 S 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gerges Abdelsayed, MBBCH BAODiagnostic Radiology Physician1942902606
Verify Katarzyna Rojek 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 036156586Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,555 Medicare Part D claims for 316 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 56 claims were for opioids.
Most prescribed
- Atorvastatin Calcium175 claims
- Amlodipine Besylate119 claims
- Lisinopril119 claims
- Losartan Potassium71 claims
- Rosuvastatin Calcium68 claims
- Levothyroxine Sodium66 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.
One hospital affiliation
- Loyola University Medical CenterMaywood, IL · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Katarzyna Rojek among 7,238 internal medicine physician records in Illinois
Katarzyna Rojek is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 66% of them.
- NPI issued2018 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2003 among the 3,580 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
257 internal medicine physician records list a practice address in Maywood
They are 257 of the 2,572 NPPES records with a practice address in Maywood, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Maywood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Boblick, MDMaywood, IL 601531932173267
- James Boblick, MDMaywood, IL 601531386618429
- Bradley Clifford, MDMaywood, IL 601531912971227
- Josephine Dlugopolski-Gach, MDMaywood, IL 601531679543151
- Kevin Embach, M.D.Maywood, IL 601531437151974
- Maureen Fearon, MDMaywood, IL 601531144294463
- Elizabeth Frye, MDMaywood, IL 601531295709509
- Sam Hung, MDMaywood, IL 601531750352753
Common questions
What is Katarzyna Rojek's NPI number?
Katarzyna Rojek's National Provider Identifier (NPI) is 1831688316, issued on May 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katarzyna Rojek located?
The NPPES record lists a practice address at 2160 S 1St Ave, Maywood, IL, 60153. Phone: (708) 354-9250. Providers update this record themselves, so call before visiting.
How can I verify Katarzyna Rojek's license?
NPPES lists Illinois license number 036156586, 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 Katarzyna Rojek prescribe under Medicare Part D?
In 2024, Katarzyna Rojek had 2,555 Medicare Part D claims for 316 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.