Quick answers
- Does Cash C. Casey accept Medicare assignment?
- Yes. Medicare's clinician data says Cash C. Casey 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 Cash C. Casey see?
- In 2024, CMS data shows 1,965 Original Medicare patients and 11,189 services for Cash C. Casey. This counts Original Medicare only and measures volume, not quality.
- What is Cash C. Casey's NPI number?
- 1518910306. 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 Cash C. Casey, 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 | 1,965 |
|---|---|
| Services billed to Medicare | 11,189 |
| Different services or procedures | 106 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,585 services
- 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's (G2211)1,573 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days (93296)1,336 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,301 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)882 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%
- Arthritis57%
- Atrial fibrillation52%
- Ischemic heart disease47%
- Heart failure40%
Hospitals where Cash C. Casey works
Medicare's Facility Affiliation Data lists Cash C. Casey 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.
- Edward HospitalNaperville, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140231
- Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140200
- Swedish HospitalChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140114
Practice locations
Addresses where Cash C. Casey is enrolled with Medicare (CMS data updated October 2, 2026).
- 10 Martin Ave, Suite 200Naperville, IL 60540 (630) 600‑0700
- 140 -183 Addison, Suite 130Elmhurst, IL 60126 (331) 221‑1000
- 155 E Brush Hill RdElmhurst, IL 60126 (630) 758‑8000
- 303 W Lake St, Suite 301Addison, IL 60101 (331) 221‑4300
- 801 S Washington StNaperville, IL 60540 (312) 355‑0450
Group practices
Medicare enrollment lists Cash C. Casey as a member of these groups (CMS data updated October 2, 2026).
- Edward Hospital96 clinicians in the group
- Elmhurst Memorial Hospital81 clinicians in the group
- Cardiovascular Institute Gpe Inc51 clinicians in the group
Specialties
Other cardiac electrophysiologists in Naperville
Clinicians with the same Medicare primary specialty in Naperville, IL — not a recommendation.
Other clinicians in Edward Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518910306 |
| 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