Marius J. Katilius, MD
Surgery Physician · Joliet, IL
Marius J. Katilius, MD is a surgery physician with a practice address in Joliet, Illinois, and NPI 1659346583, issued on Feb 22, 2006. Check the license (Illinois 036102938, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marius J. Katilius
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 036102938 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2 Uno Cir, Joliet, IL 60435
- Phone
- (815) 725-2277
- Enumerated
- Feb 22, 2006
- Record last updated
- Apr 7, 2025
- Medicaid ID
- 036102938 IL
- Medicare enrollment
- Enrolled (PECOS I20081124000747); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 2 Uno Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manuel Corrales, M.D.Surgery Physician1063445864
- Carol Danielson, RNFamily Nurse Practitioner1245632959
- Mark Danielson, MDSurgery Physician1225001068
- Christy Hiser, MDSurgery Physician1740221126
- Nasser Maali, DDSEndodontics1659434975
- Alexandra Richards, APNNurse Practitioner1770299489
Verify Marius J. Katilius 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 036102938Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average surgery physician in 2024
96 Medicare Part D claims for 54 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Pantoprazole Sodium30 claims
- Hydrocodone-Acetaminophen24 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.
Industry payments in 2024: $127.06
2 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. The 17,103 providers of this specialty with any payment received $3,513.80 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 2 group practices
- Advocate Health And Hospitals CorporationBuffalo Grove, IL
- Dupage Medical Group LtdJoliet, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marius J. Katilius among 1,520 surgery physician records in Illinois
Marius J. Katilius, MD is one of 1,520 surgery physician records with a practice address in Illinois. 66% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 64% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1994 · median 2004 among the 650 with a school on file
- Record last updated2025 · 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 208600000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Illinois
There are 1,520 surgery physician records in Illinois.
All 1,520 in Illinois → Every provider in Joliet → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Manuel Corrales, M.D.Joliet, IL 604351063445864
- Mark Danielson, MDJoliet, IL 604351225001068
- Saeed Darbandi, M.D.Joliet, IL 604351326144676
- Clyde Dawson, M.D.Joliet, IL 604351174557086
- Lauren Ghee, M.D.Joliet, IL 604351821345349
- Holly Gunderson, M.D.Joliet, IL 604351891737557
- Christy Hiser, MDJoliet, IL 604351740221126
- Wendy Marshall, MD, FACSJoliet, IL 604351578538492
Common questions
What is Marius J. Katilius, MD's NPI number?
Marius J. Katilius, MD's National Provider Identifier (NPI) is 1659346583, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marius J. Katilius, MD located?
The NPPES record lists a practice address at 2 Uno Cir, Joliet, IL, 60435. Phone: (815) 725-2277. Providers update this record themselves, so call before visiting.
How can I verify Marius J. Katilius, MD's license?
NPPES lists Illinois license number 036102938, 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 Marius J. Katilius, MD prescribe under Medicare Part D?
In 2024, Marius J. Katilius, MD had 96 Medicare Part D claims for 54 beneficiaries; the average among surgery physician prescribers was 147. 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.