Quick answers
- Does Chien-Chung P. Chang accept Medicare assignment?
- Yes. Medicare's clinician data says Chien-Chung P. Chang accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Chien-Chung P. Chang see?
- In 2024, CMS data shows 1,649 Original Medicare patients and 2,015 services for Chien-Chung P. Chang. This counts Original Medicare only and measures volume, not quality.
- What is Chien-Chung P. Chang's NPI number?
- 1225033426. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Chien-Chung P. Chang, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,649 |
|---|---|
| Services billed to Medicare | 2,015 |
| Different services or procedures | 100 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- X-ray of chest, 1 view (71045)181 services
- Imaging for evaluation of swallowing function (74230)177 services
- X-ray of chest, 2 views (71046)159 services
- Ct scan of abdomen and pelvis with contrast (74177)151 services
- Ct scan of chest without contrast (71250)117 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Ischemic heart disease39%
- Chronic kidney disease39%
- Diabetes38%
Hospitals where Chien-Chung P. Chang works
Medicare's Facility Affiliation Data lists Chien-Chung P. Chang at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Atrium Health ClevelandShelby, NC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 340021
- Atrium Health PinevilleCharlotte, NC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 340098
- Atrium Health UnionMonroe, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340130
- Carolinas Medical Center-NortheastConcord, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340001
- Carolinas Medical Center/Behavioral HealthCharlotte, NC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 340113
Practice locations
Addresses where Chien-Chung P. Chang is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 Blythe BlvdCharlotte, NC 28203 (704) 362‑1945
- 1656 Riverchase Blvd, Suite 1600Rock Hill, SC 29732 (803) 327‑9934
- 7666 Charlotte Hwy, Suite 120Indian Land, SC 29707 (803) 431‑8220
Group practices
Medicare enrollment lists Chien-Chung P. Chang as a member of this group (CMS data updated October 2, 2026).
- Charlotte Radiology P A227 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Charlotte
Clinicians with the same Medicare primary specialty in Charlotte, NC — not a recommendation.
Other clinicians in Charlotte Radiology P A
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225033426 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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