DR. ISOKEN KOKO (MD) – Hematology & Oncology Physician, NPI 1265465728
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
727 HEMATOLOGY/ONCOLOGY in IL
Provider Addresses for DR. ISOKEN KOKO (MD)
7420 W CENTRAL
CENTER FOR CANCER CARE
RIVER FOREST, IL 603051800
Phone: (708) 763-2700
Fax: (708) 488-9660
Type: Location
8961, Enclave Drive, Burr Ridge, DuPage County, Illinois, 60527, United States
BURR RIDGE, IL 605278394
Phone: (630) 794-9475
Fax: (708) 488-9660
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 127 Open Payments records for all available years, with a total value of $3,260.
Total Amount is formed as General ($3,260) + Research ($0) + Ownership ($0) = $3,260.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: PFIZER INC. ($626).
Total Amount
$3,260
General + Research + Ownership
Payments
127
Total payment records
General Amount
$3,260
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $626 |
| Gilead Sciences, Inc. | $249 |
| Novartis Pharmaceuticals Corporation | $229 |
| ABBVIE INC. | $225 |
| Janssen Biotech, Inc. | $171 |
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: 2004-11-04
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 |
|---|---|---|---|---|
| I20041104000725 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 244 | 160 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 218 | 121 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 172 | 55 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 31 | 30 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $0 |
Insurance plans in this area (ZIP 60305)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| R H E U M A T O L O G Y | IL | |
| Nurse Practitioner | IL | |
| Internal Medicine | IL | |
| Diagnostic Radiology | IL | |
| Family Practice | IL | |
| Clinical Psychologist | IL | |
| Family Practice | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| Diagnostic Radiology | MD | |
| Diagnostic Radiology | ND |
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