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Hematology/Oncology

Alejandra M. Marinelarena

Sees patients in Carol Stream, IL · Chicago, IL · Illinois

Summary

Alejandra M. Marinelarena is a hematologist-oncologist at 5777 Dept, Carol Stream, IL 60122. May accept Medicare assignment. NPI 1831726256. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Hematologist-oncologist (Medicare lists Hematology/Oncology)
  • Address: 5777 Dept, Carol Stream, IL 60122 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2020 (6 years since medical school)
  • Gender (as listed): Female
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Alejandra M. Marinelarena, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Alejandra M. Marinelarena accept Medicare assignment?
Medicare's clinician data says Alejandra M. Marinelarena may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Alejandra M. Marinelarena's NPI number?
1831726256. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Alejandra M. Marinelarena is enrolled with Medicare (CMS data updated October 2, 2026).

  • 5777 DeptCarol Stream, IL 60122
  • 676 N Saint Clair St, Suite 2140Chicago, IL 60611

Specialties

Find other Hematology/Oncology doctors in Illinois →

Other hematologist-oncologists in Illinois

Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.

All hematologist-oncologists in Illinois →

Clinician information

Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1831726256
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians