WARREN C WONG (M.D.) – Hematology & Oncology Physician, NPI 1881749240
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
727 HEMATOLOGY/ONCOLOGY in IL
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Provider Addresses for WARREN C WONG (M.D.)
1000, Remington Boulevard, Bolingbrook, Will County, Illinois, 60440, United States
200
BOLINGBROOK, IL 604405114
Phone: (630) 856-6840
Type: Mailing
1, Salt Creek Lane, Fullersburg, Hinsdale, DuPage County, Illinois, 60521, United States
HINSDALE, IL 605212936
Phone: (630) 286-5500
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 26 Open Payments records for all available years, with a total value of $557.
Total Amount is formed as General ($557) + Research ($0) + Ownership ($0) = $557.
Last reported payment date: 2024-11-18 • Largest payer in this snapshot: Genentech USA, Inc. ($153).
Total Amount
$557
General + Research + Ownership
Payments
26
Total payment records
General Amount
$557
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Genentech USA, Inc. | $153 |
| Astellas Pharma US Inc | $60 |
| AstraZeneca Pharmaceuticals LP | $55 |
| PFIZER INC. | $48 |
| Seagen Inc. | $36 |
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: 2010-09-16
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 |
|---|---|---|---|---|
| I20100916000294 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,050 | 292 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 179 | 73 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 108 | 61 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 79 | 72 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 29 | 29 | $0 |
Insurance plans in this area (ZIP 60440)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | NC | |
| Nurse Practitioner | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| - | IL | |
| H E M A T O L O G Y/ O N C O L O G Y | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| General Surgery | IL |
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