Quick answers
- Which hospitals does Heriberto Martinez work at?
- Medicare's official clinician data lists Heriberto Martinez at 3 hospitals: Advocate Christ Hospital & Medical Center, Loyola University Medical Center and MacNeal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Heriberto Martinez see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago, IL and Cicero, IL. Call before your visit to confirm the address.
- What is Heriberto Martinez's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
- Does Heriberto Martinez accept Medicare assignment?
- Yes. Medicare's clinician data says Heriberto Martinez 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 Heriberto Martinez?
- (248) 336-4000, as listed in official Medicare / NPI Registry data.
- What is Heriberto Martinez's NPI number?
- 1336115294. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Heriberto Martinez works
Medicare's Facility Affiliation Data lists Heriberto Martinez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
- MacNeal HospitalBerwyn, IL · Acute Care Hospital · CCN 140054
Practice locations
Addresses where Heriberto Martinez is enrolled with Medicare (CMS data updated 2026-10-02).
- 3000 N Cicero AveChicago, IL 60641 (248) 336‑4000
- 5857 W 35th StCicero, IL 60804 (708) 780‑1464
Group practices
Medicare enrollment lists Heriberto Martinez as a member of this group (CMS data updated 2026-10-02).
- Exclusive Physicians - Illinois PLLC3 clinicians in the group
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336115294 |
| 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