Margaret M. Gregus
Oncology Clinical Nurse Specialist · Hinsdale, IL
Margaret M. Gregus is an oncology clinical nurse specialist with a practice address in Hinsdale, Illinois, and NPI 1346870177, issued on Jan 21, 2020. Check the license (Illinois 209.002754, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret M. Gregus
- Primary taxonomy
- Oncology Clinical Nurse Specialist 364SX0200X
- License number
- 209.002754 IL
Self-reported in NPPES; status is on the state search - Practice location
- 121 N Elm St, Hinsdale, IL 60521
- Phone
- (630) 601-7719
- Enumerated
- Jan 21, 2020
- Record last updated
- Jan 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest oncology clinical nurse specialist records → All 27 in Illinois → Look up another NPI →
Also registered at 121 N Elm St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sudarshan Sharma, MDGynecologic Oncology Physician1740265974
- Vafa Shayani, MDSurgery Physician1134193220
Verify Margaret M. Gregus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209.002754Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $289.46
12 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 94 providers of this specialty with any payment received $2,471.81 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.
Margaret M. Gregus among 27 oncology clinical nurse specialist records in Illinois
Margaret M. Gregus is one of 27 oncology clinical nurse specialist records with a practice address in Illinois. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 81% of them.
- NPI issued2020 · 81% of these records are older, 11% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · 22% of these records are
- Record last updated2020 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SX0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Oncology Clinical Nurse Specialist providers in Illinois
There are 27 oncology clinical nurse specialist records in Illinois.
All 27 in Illinois → Every provider in Hinsdale → Oncology Clinical Nurse Specialist nationwide →
The 8 oncology clinical nurse specialist records with the nearest ZIP codes
- Jeanne Oelerich, APRN FPAAurora, IL 605041700853496
- Kimberly Rohan, A.P.N.Naperville, IL 605401982749750
- Valerie Wodzinski, RN, MSRiverside, IL 605411972684066
- Joann Petty, APN CNSWarrenville, IL 605551780889626
- Magan Schwartz, MSN, ANP-BC, OCNWarrenville, IL 605551225321771
- Lauren Sheehy, AGCNSWarrenville, IL 605551447126495
- Trudi Sabaj, APN-CNSNaperville, IL 605631952525305
- Deborah Stlaske, APN, CNSOak Lawn, IL 604531043449416
Common questions
What is Margaret M. Gregus's NPI number?
Margaret M. Gregus's National Provider Identifier (NPI) is 1346870177, issued on Jan 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Margaret M. Gregus located?
The NPPES record lists a practice address at 121 N Elm St, Hinsdale, IL, 60521. Phone: (630) 601-7719. Providers update this record themselves, so call before visiting.
How can I verify Margaret M. Gregus's license?
NPPES lists Illinois license number 209.002754, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity 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.