Stephen Chang, M.D.
NPI 1568451284 · Diagnostic Radiology Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Chang, M.D. is a Diagnostic Radiology Physician provider in Mesa, AZ (NPI 1568451284).
Provider details
- NPI number
- 1568451284
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 32493 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,180 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 867 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 386 | $38 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 255 | $82 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 161 | $82 |
| Ct Scan of Upper Spine Without Contrast72125 | 128 | $45 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 127 | $76 |
| Ct Scan of Abdomen and Pelvis Without Contrast |
Practice location
Mailing address
Additional practice locations (1)
- 1201 S Alma School RdMesa, AZ 85210-2008Phone: (480) 545-8119Fax: (480) 892-6805
Registry dates
- Enumerated
- 2005-10-14
- Last updated
- 2019-01-31
Frequently asked questions
- What is Stephen Chang's NPI number?
- Stephen Chang's National Provider Identifier (NPI) is 1568451284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Chang's specialty?
- Stephen Chang is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Chang located?
- Stephen Chang's practice location on file with NPPES is 6424 E Broadway Rd Ste 101, Mesa, AZ 85206-1750.
- What is Stephen Chang's phone number?
- The practice phone number listed in the NPPES registry for Stephen Chang is (480) 456-9000.
- Does Stephen Chang accept Medicare?
- Stephen Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Chang's NPI active?
- Yes — Stephen Chang's NPI (1568451284) is active in the NPPES registry as of the last update on 2019-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.