Warren Chang, M.D.
NPI 1851657209 · Diagnostic Radiology Physician · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Chang, M.D. is a Diagnostic Radiology Physician provider in Pittsburgh, PA (NPI 1851657209).
Provider details
- NPI number
- 1851657209
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A130053 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,385 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 504 | $37 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 159 | $75 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 137 | $78 |
| Mri Scan of Brain Without Contrast70551 | 104 | $65 |
| Mri Scan of Brain Before and After Contrast70553 | 86 | $101 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 56 | $66 |
Practice location
Mailing address
Additional practice locations (2)
- 10833 Le Conte AveLos Angeles, CA 90095-3075Phone: (310) 301-6800
- 12311 Perry HwyWexford, PA 15090-8344Phone: (878) 332-4284Fax: (878) 332-4474
Registry dates
- Enumerated
- 2012-04-10
- Last updated
- 2020-10-08
- Certified
- 2020-10-08
Frequently asked questions
- What is Warren Chang's NPI number?
- Warren Chang's National Provider Identifier (NPI) is 1851657209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Chang's specialty?
- Warren Chang is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Chang located?
- Warren Chang's practice location on file with NPPES is 320 E North Ave, Pittsburgh, PA 15212.
- What is Warren Chang's phone number?
- The practice phone number listed in the NPPES registry for Warren Chang is (412) 359-8743.
- Does Warren Chang accept Medicare?
- Warren Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Chang's NPI active?
- Yes — Warren Chang's NPI (1851657209) is active in the NPPES registry as of the last update on 2020-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.