Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Chae Han - Chang, MD

Works at hospitals in Lake Forest, IL · McHenry, IL · Chicago, IL · Illinois

Summary

Chae Han - Chang, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Lake Forest, IL, McHenry, IL and Chicago, IL. NPI 1588777122. 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 Chae Han - Chang, 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
31Years since medical school (graduated 1995)
FemaleGender (as listed)
Northwestern Medical Faculty FoundationGroup practice

Quick answers

Which hospitals does Chae Han - Chang work at?
Medicare's official clinician data lists Chae Han - Chang at 3 hospitals: Northwestern Lake Forest Hospital, Northwestern Medicine McHenry and Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Chae Han - Chang see patients?
Medicare's clinician data lists 1 practice location in Deerfield, IL. Call before your visit to confirm the address.
What is Chae Han - Chang's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Chae Han - Chang accept Medicare assignment?
Yes. Medicare's clinician data says Chae Han - Chang 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 Chae Han - Chang offer telehealth?
Medicare's clinician data says Chae Han - Chang offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Chae Han - Chang?
(312) 926-6146, as listed in official Medicare / NPI Registry data.
What is Chae Han - Chang's NPI number?
1588777122. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Chae Han - Chang works

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

Group practices

Medicare enrollment lists Chae Han - Chang as a member of this group (CMS data updated 2026-10-02).

  • Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Deerfield

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

All internal medicine doctors in Deerfield →

Clinician information

CredentialMD
Graduation year1995
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1588777122
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