Jadwiga A. Loj, M. D.
Hospitalist Physician · Park Ridge, IL
Jadwiga A. Loj, M. D. is a hospitalist physician with a practice address in Park Ridge, Illinois, and NPI 1649307315, issued on Feb 28, 2007. Check the license (Illinois 036-112352, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jadwiga A. Loj
- Credential
- M. D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 036-112352 IL
36-112352 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1775 Dempster Street, Park Ridge, IL 60068
- Phone
- (847) 723-6975
- Enumerated
- Feb 28, 2007
- Record last updated
- Mar 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20051004000584); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Also registered at 1775 Dempster Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deborah Kantoris, APNAcute Care Clinical Nurse Specialist1013266352
- Jean Mau, ADVANCED PRACTICE NUAdult Health Clinical Nurse Specialist1518188770
- Bradley Strimling, MDDiagnostic Radiology Physician1376522177
- C. Michael Weldon-Linne, M.D.Anatomic Pathology & Clinical Pathology Physician1598757965
- Jacob White, DOSurgery Physician1023877743
- William Wilkens, M.D.Anatomic Pathology & Clinical Pathology Physician1407848872
Verify Jadwiga A. Loj 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 036-112352Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average hospitalist physician in 2024
102 Medicare Part D claims for 52 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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: $17.64
1 payment: food and beverage; the largest payer was Boston Scientific 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 one group practice
- Advocate Health And Hospitals CorporationPark Ridge, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jadwiga A. Loj among 1,535 hospitalist physician records in Illinois
Jadwiga A. Loj, M. D. 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 2007, is newer than 12% of them.
- NPI issued2007 · 12% of these records are older, 81% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated1991 · 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 Park Ridge → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Aisha Amin, MDPark Ridge, IL 600681225202096
- Alma Arslanagic, M.D.Park Ridge, IL 600681639311699
- Abigail Buchwach, M.D.Park Ridge, IL 600681861782138
- Isabel Gonzalez, MDPark Ridge, IL 600681225148414
- Renu Gupta, M.D.Park Ridge, IL 600681982618344
- Sana Hoda, DOPark Ridge, IL 600681891113643
- Nino Idoidze, MDPark Ridge, IL 600681043487507
- Sheetal Joshipura-Chi, MDPark Ridge, IL 600681912268509
Common questions
What is Jadwiga A. Loj, M. D.'s NPI number?
Jadwiga A. Loj, M. D.'s National Provider Identifier (NPI) is 1649307315, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jadwiga A. Loj, M. D. located?
The NPPES record lists a practice address at 1775 Dempster Street, Park Ridge, IL, 60068. Phone: (847) 723-6975. Providers update this record themselves, so call before visiting.
How can I verify Jadwiga A. Loj, M. D.'s license?
NPPES lists Illinois license number 036-112352, 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 Jadwiga A. Loj, M. D. prescribe under Medicare Part D?
In 2024, Jadwiga A. Loj, M. D. had 102 Medicare Part D claims for 52 beneficiaries; the average among hospitalist physician prescribers was 521. 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.