Quick answers
- Does Luis A. Diaz Quintero accept Medicare assignment?
- Yes. Medicare's clinician data says Luis A. Diaz Quintero 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.
- What is Luis A. Diaz Quintero's NPI number?
- 1437506557. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Luis A. Diaz Quintero works
Medicare's Facility Affiliation Data lists Luis A. Diaz Quintero 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.
- Alexian Brothers Medical Center 1Elk Grove Village, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140258
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281
- St Alexius Medical CenterHoffman Estates, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140290
- St Mary Medical Center IncHobart, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150034
Practice locations
Addresses where Luis A. Diaz Quintero is enrolled with Medicare (CMS data updated October 2, 2026).
- 1555 Barrington RdHoffman Estates, IL 60169 (847) 843‑2000
- 800 Biesterfield RdElk Grove Village, IL 60007 (847) 437‑5500
Group practices
Medicare enrollment lists Luis A. Diaz Quintero as a member of this group (CMS data updated October 2, 2026).
- Alexian Brothers Specialty Group46 clinicians in the group
Specialties
Other interventional cardiologists in Hoffman Estates
Clinicians with the same Medicare primary specialty in Hoffman Estates, IL — not a recommendation.
Other clinicians in Alexian Brothers Specialty Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437506557 |
| 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
- 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