Quick answers
- Does Wendell R. Malalis accept Medicare assignment?
- Yes. Medicare's clinician data says Wendell R. Malalis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Wendell R. Malalis see?
- In 2024, CMS data shows 507 Original Medicare patients and 2,384 services for Wendell R. Malalis. This counts Original Medicare only and measures volume, not quality.
- What is Wendell R. Malalis's NPI number?
- 1962692418. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Wendell R. Malalis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 507 |
|---|---|
| Services billed to Medicare | 2,384 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)1,140 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)603 services
- Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)215 services
- Hemoglobin a1c level (83036)147 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)65 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes63%
- Arthritis48%
- Chronic kidney disease37%
- Anxiety34%
Hospitals where Wendell R. Malalis works
Medicare's Facility Affiliation Data lists Wendell R. Malalis at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Northwestern Medicine Delnor Community HospitalGeneva, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140211
- Northwestern Medicine Kishwaukee HospitalDekalb, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140286
- Rochelle Community HospitalRochelle, IL · Critical Access Hospital · Emergency services: listed by Medicare · CCN 141312
- Valley West Community HospitalSandwich, IL · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 141340
Practice locations
Addresses where Wendell R. Malalis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1850 Gateway DrSycamore, IL 60178 (630) 232‑0280
Group practices
Medicare enrollment lists Wendell R. Malalis as a member of this group (CMS data updated October 2, 2026).
- Central Dupage Physician Group1,080 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in Central Dupage Physician Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1962692418 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians