DR. BOZENA WITEK (MD) – Hematology & Oncology Physician, NPI 1275639585
Hematology & Oncology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
727 HEMATOLOGY/ONCOLOGY in IL
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Provider Addresses for DR. BOZENA WITEK (MD)
7447, West Talcott Avenue, Norwood Park, Chicago, Jefferson Township, Cook County, Illinois, 60631, United States
SUITE ONE
CHICAGO, IL 606313745
Phone: (773) 774-0042
Fax: (773) 774-2008
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 235 Open Payments records for all available years, with a total value of $5,380.
Total Amount is formed as General ($5,380) + Research ($0) + Ownership ($0) = $5,380.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($712).
Total Amount
$5,380
General + Research + Ownership
Payments
235
Total payment records
General Amount
$5,380
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $712 |
| PFIZER INC. | $435 |
| AstraZeneca Pharmaceuticals LP | $361 |
| Celgene Corporation | $355 |
| Gilead Sciences, Inc. | $243 |
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: 2010-12-14
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 |
|---|---|---|---|---|
| I20101214001067 | I | Hematology/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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J9271 | Injection, pembrolizumab, 1 mg | 16,800 | 14 | $0 |
| J1453 | Injection, fosaprepitant, 1 mg | 16,500 | 24 | $0 |
| J0897 | Injection, denosumab, 1 mg | 5,100 | 16 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 1,490 | 39 | $0 |
| J2405 | Injection, ondansetron hydrochloride, per 1 mg | 1,342 | 22 | $0 |
Insurance plans in this area (ZIP 60631)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | IL | 96415 | Infusion of chemotherapy into a vein | 136 | 23 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IL | |
| Hematology/Oncology, Hematology | IL | |
| Nurse Practitioner | IL | |
| Medical Oncology | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| Medical Oncology, Internal Medicine | IL | |
| - | IL | |
| Hematology/Oncology, Internal Medicine | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL |
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