Quick answers
- Does William Sanchez-Garcia accept Medicare assignment?
- Yes. Medicare's clinician data says William Sanchez-Garcia 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 William Sanchez-Garcia see?
- In 2024, CMS data shows 64 Original Medicare patients and 184 services for William Sanchez-Garcia. This counts Original Medicare only and measures volume, not quality.
- What is William Sanchez-Garcia's NPI number?
- 1548642564. 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 William Sanchez-Garcia, 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 | 64 |
|---|---|
| Services billed to Medicare | 184 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)26 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)16 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)14 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)13 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)12 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%
- Arthritis55%
- Ischemic heart disease52%
- Chronic kidney disease48%
- Heart failure48%
Hospitals where William Sanchez-Garcia works
Medicare's Facility Affiliation Data lists William Sanchez-Garcia 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.
- Advocate Condell Medical CenterLibertyville, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140202
- Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140182
- Advocate Lutheran General HospitalPark Ridge, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140223
Practice locations
Addresses where William Sanchez-Garcia is enrolled with Medicare (CMS data updated October 2, 2026).
- 825 S Milwaukee AveLibertyville, IL 60048 (847) 362‑1393
Group practices
Medicare enrollment lists William Sanchez-Garcia as a member of this group (CMS data updated October 2, 2026).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Interventional Cardiologyprimary
Other interventional cardiologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in Advocate Health and Hospitals Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2014 (12 years since medical school) |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548642564 |
| 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