Quick answers
- Which hospitals does Chang O Son work at?
- Medicare's official clinician data lists Chang O Son at 2 hospitals: Cape Fear Valley Medical Center and Sovah Health Danville. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Chang O Son see patients?
- Medicare's clinician data lists 3 practice locations, including Danville, VA, Fayetteville, NC and Bismarck, ND. Call before your visit to confirm the address.
- What is Chang O Son's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Medical Oncology.
- Does Chang O Son accept Medicare assignment?
- Yes. Medicare's clinician data says Chang O Son 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 Chang O Son?
- (434) 799-3866, as listed in official Medicare / NPI Registry data.
- What is Chang O Son's NPI number?
- 1396016838. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Chang O Son works
Medicare's Facility Affiliation Data lists Chang O Son at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cape Fear Valley Medical CenterFayetteville, NC · Acute Care Hospital · CCN 340028
- Sovah Health DanvilleDanville, VA · Acute Care Hospital · CCN 490075
Practice locations
Addresses where Chang O Son is enrolled with Medicare (CMS data updated 2026-10-02).
- 142 S Main StDanville, VA 24541 (434) 799‑3866
- 6387 Ramsey St, Suite 140Fayetteville, NC 28311 (910) 615‑3840
- 900 E Broadway AveBismarck, ND 58501 (701) 530‑7000
Group practices
Medicare enrollment lists Chang O Son as a member of these groups (CMS data updated 2026-10-02).
- Cumberland County Hospital System Inc574 clinicians in the group
- St Alexius Medical Center238 clinicians in the group
- Danville Physician Practices LLC177 clinicians in the group
Specialties
- Internal Medicineprimary
- Medical Oncologyalso
Other internal medicine doctors in Danville
Clinicians with the same Medicare primary specialty in Danville, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396016838 |
| 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