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Internal Medicine

Diala Alatassi, MD

Works at hospitals in Elmhurst, IL · Illinois

Summary

Diala Alatassi, MD (Internal Medicine) is listed by Medicare at 1 hospital in Elmhurst, IL. NPI 1215467147. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Diala Alatassi, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
10Years since medical school (graduated 2016)
FemaleGender (as listed)
Endeavor Health Medical GroupGroup practice

Quick answers

Which hospitals does Diala Alatassi work at?
Medicare's official clinician data lists Diala Alatassi at 1 hospital: Elmhurst Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Diala Alatassi see patients?
Medicare's clinician data lists 2 practice locations, including Evanston, IL and Hinsdale, IL. Call before your visit to confirm the address.
What is Diala Alatassi's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Diala Alatassi accept Medicare assignment?
Yes. Medicare's clinician data says Diala Alatassi 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.
Does Diala Alatassi offer telehealth?
Medicare's clinician data says Diala Alatassi offers telehealth services. Ask the office which visits can be done by video or phone.
What is Diala Alatassi's NPI number?
1215467147. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Diala Alatassi works

Medicare's Facility Affiliation Data lists Diala Alatassi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Diala Alatassi is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Diala Alatassi as a member of this group (CMS data updated 2026-10-02).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Evanston

Clinicians with the same Medicare primary specialty in Evanston, IL — not a recommendation.

All internal medicine doctors in Evanston →

Clinician information

CredentialMD
Graduation year2016
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215467147
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians