DR. SYED ASLAM ZAHIR (M.D.) – Hematology & Oncology Physician, NPI 1538156732
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 DR. SYED ASLAM ZAHIR (M.D.)
North Randall Road, Weldwood Oaks, Elgin, Elgin Township, Kane County, Illinois, 60123, United States
SUITE 300
ELGIN, IL 60123
Phone: (847) 931-0909
Fax: (847) 488-9596
Type: Location
25070 NETWORK PLACE
CHICAGO, IL 606731250
Phone: (847) 585-7000
Fax: (847) 240-0622
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 145 Open Payments records for all available years, with a total value of $3,225.
Total Amount is formed as General ($3,225) + Research ($0) + Ownership ($0) = $3,225.
Last reported payment date: 2024-12-30 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($784).
Total Amount
$3,225
General + Research + Ownership
Payments
145
Total payment records
General Amount
$3,225
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $784 |
| Celgene Corporation | $236 |
| ABBVIE INC. | $109 |
| E.R. Squibb & Sons, L.L.C. | $108 |
| PFIZER INC. | $103 |
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: 2006-03-30
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 |
|---|---|---|---|---|
| I20060330000370 | 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 |
|---|---|---|---|---|
| J1756 | Injection, iron sucrose, 1 mg | 36,200 | 47 | $0 |
| J0881 | Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 33,500 | 22 | $0 |
| J1453 | Injection, fosaprepitant, 1 mg | 26,400 | 25 | $0 |
| J9145 | Injection, daratumumab, 10 mg | 21,504 | 12 | $0 |
| J0897 | Injection, denosumab, 1 mg | 13,860 | 34 | $0 |
Insurance plans in this area (ZIP 60123)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | IL | 85610 | Blood test, clotting time | 531 | 59 |
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 |
Reviews
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