Physician Profile
John C Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Based in Gilbert, AZ, John C Chang, M.D. is listed in the NPI registry under diagnostic radiology. According to Medicare claims data, John cared for 2,977 Medicare patients across 3,531 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (480) 256-6444
- Email not available
Practice Locations
2946 E BANNER GATEWAY DR.
Gilbert, AZ 85234
Procedures Most Often Billed to Medicare
3,531 services · 2,977 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ct scan of chest with contrast | Imaging | 71260 |
647 |
| X-ray of chest, 1 view | Imaging | 71045 |
618 |
| Ct scan of chest without contrast | Imaging | 71250 |
551 |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
520 |
| X-ray of chest, 2 views | Imaging | 71046 |
218 |
| Mri scan of pelvis before and after contrast | Imaging | 72197 |
187 |
| Ct scan of abdomen and pelvis without contrast | Imaging | 74176 |
145 |
| Ct scan of abdomen and pelvis before and after contrast | Imaging | 74178 |
98 |
| X-ray of abdomen, 1 view | Imaging | 74018 |
68 |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
68 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other diagnostic radiology specialists in Gilbert 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Ct scan of chest with contrast 7
Providers in AZ who bill this service to Medicare most often.
Common questions
What is Dr. Chang's specialty?
Dr. Chang is a diagnostic radiology in Gilbert, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where can I find Dr. Chang?
Dr. Chang is listed at 2946 E BANNER GATEWAY DR., Gilbert, AZ 85234. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Chang?
The number on file is (480) 256-6444. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Chang's NPI number?
Dr. Chang's National Provider Identifier is 1669669164. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Chang's medical education?
Dr. Chang attended Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Chang been practicing?
Dr. Chang has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Chang known for?
According to Medicare billing data, Dr. Chang performs imaging including ct scan of chest with contrast and x-ray of chest, 1 view; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chang. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.