Walter Stadler, MD
NPI 1033272547 · Hematology & Oncology Physician · Zion, IL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Walter Stadler, MD is a Hematology & Oncology Physician provider in Zion, IL (NPI 1033272547).
Provider details
- NPI number
- 1033272547
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036081259 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
630 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 258 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 235 | $100 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 67 | $149 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 50 | $123 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 20 | $190 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 316 | 46 |
| Abiraterone Acetate | 205 | 28 |
| Levothyroxine Sodium | 35 | — |
| Cabozantinib S-Malatebrand: Cabometyx | 33 | — |
| Enzalutamidebrand: Xtandi | 31 | — |
| Belzutifanbrand: Welireg | 25 | — |
| Duloxetine Hcl | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$13,886 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-18
- Last updated
- 2025-02-13
Frequently asked questions
- What is Walter Stadler's NPI number?
- Walter Stadler's National Provider Identifier (NPI) is 1033272547, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Stadler's specialty?
- Walter Stadler is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Stadler located?
- Walter Stadler's practice location on file with NPPES is 2520 Elisha Avenue, Zion, IL 60099.
- What is Walter Stadler's phone number?
- The practice phone number listed in the NPPES registry for Walter Stadler is (800) 322-9183.
- Does Walter Stadler accept Medicare?
- Walter Stadler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Walter Stadler's NPI active?
- Yes — Walter Stadler's NPI (1033272547) is active in the NPPES registry as of the last update on 2025-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.