WALTER STADLER (MD) – Hematology & Oncology Physician, NPI 1033272547
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
Provider Addresses for WALTER STADLER (MD)
2520 ELISHA AVENUE
ZION, IL 60099
Phone: (800) 322-9183
Type: Location
150 HARVESTER DR
SUITE 300
BURR RIDGE, IL 605275919
Phone:
Type: Mailing
2361 PAYSPHERE CIRCLE
CHICAGO, IL 60067
Phone: (800) 322-9183
Type: Mailing
Harvester Drive, Burr Ridge, DuPage County, Illinois, 65027, United States
STE 110
BURR RIDGE, IL 605277594
Phone:
Type: Mailing
Au Bon Pain, 5841, South Maryland Avenue, Hyde Park, Chicago, Hyde Park Township, Cook County, Illinois, 60637, United States
CHICAGO, IL 606371443
Phone: (888) 824-0200
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 34 Open Payments records for all available years, with a total value of $24,253.
Total Amount is formed as General ($24,253) + Research ($0) + Ownership ($0) = $24,253.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: AstraZeneca UK Limited ($9,175).
Total Amount
$24,253
General + Research + Ownership
Payments
34
Total payment records
General Amount
$24,253
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca UK Limited | $9,175 |
| Merck Sharp & Dohme LLC | $5,792 |
| PFIZER INC. | $5,770 |
| Bayer Healthcare Pharmaceuticals Inc. | $2,142 |
| AstraZeneca AB | $1,050 |
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: 2024-12-03
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20060426000705 | I | Hematology/Oncology | IL | TBD |
| I20241203001856 | I | Hematology/Oncology | IN | 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 | 158 | 90 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 126 | 55 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 58 | 17 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 31 | 31 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 22 | 20 | $0 |
Insurance plans in this area (ZIP 60099)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Thoracic Surgery | OK | |
| Interventional Radiology, Diagnostic Radiology | IL | |
| General Surgery, Surgical Oncology | IL | |
| Pulmonary Disease | IL | |
| Radiation Oncology | IL | |
| Registered Dietitian Or Nutrition Professional | NY | |
| Medical Oncology | IL | |
| Nurse Practitioner | IL | |
| P A T H O L O G Y | IL | |
| Physician Assistant | IL |
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