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Internal Medicine

Sijun Yang, MD

Works at hospitals in Naperville, IL · Elmhurst, IL · Arlington Heights, IL … · Illinois

Summary

Sijun Yang, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Naperville, IL, Elmhurst, IL and Arlington Heights, IL and other places. NPI 1962653568. 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 Sijun Yang, 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
37Years since medical school (graduated 1989)
MaleGender (as listed)

Quick answers

Which hospitals does Sijun Yang work at?
Medicare's official clinician data lists Sijun Yang at 5 hospitals: Edward Hospital, Elmhurst Memorial Hospital, Northwest Community Hospital 1, UChicago Medicine AdventHealth Bolingbrook and UChicago Medicine AdventHealth Hinsdale. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sijun Yang see patients?
Medicare's clinician data lists 2 practice locations, including Naperville, IL and Bolingbrook, IL. Call before your visit to confirm the address.
What is Sijun Yang's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Sijun Yang accept Medicare assignment?
Yes. Medicare's clinician data says Sijun Yang 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 Sijun Yang offer telehealth?
Medicare's clinician data says Sijun Yang offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Sijun Yang?
(630) 759-0088, as listed in official Medicare / NPI Registry data.
What is Sijun Yang's NPI number?
1962653568. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sijun Yang works

Medicare's Facility Affiliation Data lists Sijun Yang 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 Sijun Yang is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Naperville

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

All internal medicine doctors in Naperville →

Clinician information

CredentialMD
Graduation year1989
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1962653568
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