Katarzyna J. Volmir
Hospitalist Physician · Clarendon Hills, IL
Katarzyna J. Volmir is a hospitalist physician with a practice address in Clarendon Hills, Illinois, and NPI 1891289872, issued on Jun 21, 2018. Check the license (Illinois 036155965, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katarzyna J. Volmir
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 036155965 IL
Self-reported in NPPES; status is on the state search - Practice location
- 103 Ogden Ave, Clarendon Hills, IL 60514
- Phone
- (630) 339-3094
- Enumerated
- Jun 21, 2018
- Record last updated
- Jun 14, 2025
- Fax
- (630) 339-3094
- Medicare enrollment
- Enrolled (PECOS I20210922000801); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2018
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Verify Katarzyna J. Volmir 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 036155965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% more Medicare Part D claims than the average hospitalist physician in 2024
593 Medicare Part D claims for 198 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 57 claims were for opioids.
Most prescribed
- Pantoprazole Sodium38 claims
- Hydrocodone-Acetaminophen31 claims
- Furosemide26 claims
- Atorvastatin Calcium25 claims
- Eliquis20 claims
- Metoprolol Succinate20 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 MIPS final score for 2023 (Medicare payment program): 97.7 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).
Industry payments in 2024: $29.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Central Dupage Physician GroupPalos Heights, IL
- Cep America-Illinois Hospitalists, LLPAlton, IL
- Summit Hospitalist Group LLCCheyenne, WY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katarzyna J. Volmir among 1,535 hospitalist physician records in Illinois
Katarzyna J. Volmir is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% 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 68% of them.
- NPI issued2018 · 68% of these records are older, 27% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2018 · median 2013 among the 1,339 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Illinois
There are 1,535 hospitalist physician records in Illinois.
All 1,535 in Illinois → Every provider in Clarendon Hills → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Haroon Chaudhary, DODowners Grove, IL 605151295027498
- Basil Hernandez, MDDowners Grove, IL 605151144327602
- Samira Ibrahim, DODowners Grove, IL 605151184259269
- Arsalan Khan, M.D.Downers Grove, IL 605151689938383
- Husna Khan, DODowners Grove, IL 605151205464443
- Adam Mallinger, D.O.Downers Grove, IL 605151154620300
- Akshay Patel, MDDowners Grove, IL 605151003494220
- Mohammad Siddique, M. D.Downers Grove, IL 605151144439456
Common questions
What is Katarzyna J. Volmir's NPI number?
Katarzyna J. Volmir's National Provider Identifier (NPI) is 1891289872, issued on Jun 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katarzyna J. Volmir located?
The NPPES record lists a practice address at 103 Ogden Ave, Clarendon Hills, IL, 60514. Phone: (630) 339-3094. Providers update this record themselves, so call before visiting.
How can I verify Katarzyna J. Volmir's license?
NPPES lists Illinois license number 036155965, 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 J. Volmir prescribe under Medicare Part D?
In 2024, Katarzyna J. Volmir had 593 Medicare Part D claims for 198 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Katarzyna J. Volmir's MIPS final score?
The 2023 MIPS final score is 97.7 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.