Quick answers
- Which hospitals does Marcos A. Lopez work at?
- Medicare's official clinician data lists Marcos A. Lopez at 2 hospitals: Humboldt Park Health and UChicago Medicine AdventHealth La Grange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marcos A. Lopez see patients?
- Medicare's clinician data lists 3 practice locations, including Chicago, IL, North Riverside, IL and N Riverside, IL. Call before your visit to confirm the address.
- What is Marcos A. Lopez's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Marcos A. Lopez accept Medicare assignment?
- Yes. Medicare's clinician data says Marcos A. Lopez accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Marcos A. Lopez?
- (773) 394-0400, as listed in official Medicare / NPI Registry data.
- What is Marcos A. Lopez's NPI number?
- 1417967308. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marcos A. Lopez works
Medicare's Facility Affiliation Data lists Marcos A. Lopez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Humboldt Park HealthChicago, IL · Acute Care Hospital · CCN 140206
- UChicago Medicine AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · CCN 140065
Practice locations
Addresses where Marcos A. Lopez is enrolled with Medicare (CMS data updated 2026-10-02).
- 1431 N Western Ave, Suite 301Chicago, IL 60622 (773) 394‑0400
- 9005 W Cermak RdNorth Riverside, IL 60546
- 9005 W Cermak RdN Riverside, IL 60546
Group practices
Medicare enrollment lists Marcos A. Lopez as a member of this group (CMS data updated 2026-10-02).
- Marcos A. Lopez, M.D, S.C.2 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417967308 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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