DR. NADER H. DARWISH (MD) – Radiation Oncology Physician, NPI 1528680139
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
312 RADIATION ONCOLOGY in IL
Provider Addresses for DR. NADER H. DARWISH (MD)
3900 W 203rd St
Olympia Fields, IL 604611183
Phone: (708) 855-7069
Fax: (708) 503-3224
Type: Location
4440 W 95TH ST RM 131
OAK LAWN, IL 604532600
Phone: (708) 684-5674
Fax: (708) 684-2500
Type: Mailing
4440 W 95TH ST
OAK LAWN, IL 604532600
Phone: (708) 684-5674
Fax: (708) 684-2500
Type: Location
2160 S 1st Ave
Maywood, IL 601533328
Phone: (708) 216-4051
Type: Location
2160 S 1ST AVE BLDG 2944
MAYWOOD, IL 601533328
Phone: (708) 216-4051
Fax: (708) 216-6076
Type: Mailing
2160 S 1ST AVE
MAYWOOD, IL 601533328
Phone: (708) 216-4051
Type: Location
611 W PARK ST
FAPC
URBANA, IL 618012500
Phone:
Type: Mailing
509 W UNIVERSITY AVE
URBANA, IL 618011645
Phone: (217) 383-3273
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-07-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20250708001530 | I | Radiation Oncology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60461)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | IL | |
| Nurse Practitioner | IL | |
| Clinical Psychologist | IL | |
| - | FL | |
| Nurse Practitioner | IL | |
| Gastroenterology, Internal Medicine | WI | |
| P O D I A T R Y | IL | |
| Hospitalist, Family Practice | TX | |
| Diagnostic Radiology | NY | |
| - | IL |
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