Quick answers
- Which hospitals does Ko-Yun Chang work at?
- Medicare's official clinician data lists Ko-Yun Chang at 1 hospital: Shands Jacksonville. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ko-Yun Chang see patients?
- Medicare's clinician data lists 1 practice location in Jacksonville, FL. Call before your visit to confirm the address.
- What is Ko-Yun Chang's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists).
- Does Ko-Yun Chang accept Medicare assignment?
- Medicare's clinician data says Ko-Yun Chang may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Ko-Yun Chang's NPI number?
- 1922956390. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ko-Yun Chang works
Medicare's Facility Affiliation Data lists Ko-Yun Chang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Shands JacksonvilleJacksonville, FL · Acute Care Hospital · CCN 100001
Practice locations
Addresses where Ko-Yun Chang is enrolled with Medicare (CMS data updated 2026-10-02).
- PO Box, Suite 44008Jacksonville, FL 32231
Specialties
Other pulmonologists in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1922956390 |
| 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