Quick answers
- Which hospitals does I-Wen Chang work at?
- Medicare's official clinician data lists I-Wen Chang at 4 hospitals: Northside Hospital, Northside Hospital Duluth, Northside Hospital Forsyth and Northside Hospital Gwinnett. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does I-Wen Chang see patients?
- Medicare's clinician data lists 3 practice locations, including Snellville, GA, Dacula, GA and Duluth, GA. Call before your visit to confirm the address.
- What is I-Wen Chang's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does I-Wen Chang accept Medicare assignment?
- Yes. Medicare's clinician data says I-Wen 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.
- What is the phone number for I-Wen Chang?
- (770) 979-2828, as listed in official Medicare / NPI Registry data.
- What is I-Wen Chang's NPI number?
- 1912034471. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where I-Wen Chang works
Medicare's Facility Affiliation Data lists I-Wen Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northside HospitalAtlanta, GA · Acute Care Hospital · CCN 110161
- Northside Hospital DuluthDuluth, GA · Acute Care Hospital · CCN 110252
- Northside Hospital ForsythCumming, GA · Acute Care Hospital · CCN 110005
- Northside Hospital GwinnettLawrenceville, GA · Acute Care Hospital · CCN 110087
Practice locations
Addresses where I-Wen Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- 1700 Tree Ln, Suite 490Snellville, GA 30078 (770) 979‑2828
- 2098 Teron Trce, Suite 400Dacula, GA 30019 (678) 722‑3940
- 3855 Pleasant Hill Rd, Suite 480Duluth, GA 30096 (770) 623‑6433
Group practices
Medicare enrollment lists I-Wen Chang as a member of this group (CMS data updated 2026-10-02).
- North Atlanta Oncology Services LLC29 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Snellville
Clinicians with the same Medicare primary specialty in Snellville, GA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912034471 |
| 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