William Chu, M.D.
NPI 1124018551 · Diagnostic Radiology Physician · Baldwin Park, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Chu, M.D. is a Diagnostic Radiology Physician provider in Baldwin Park, CA (NPI 1124018551).
Provider details
- NPI number
- 1124018551
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A38858 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,107 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 | 2,650 | $8 |
| X-Ray of Abdomen, 1 View74018 | 191 | $9 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 169 | $79 |
| Ct Scan Head Or Brain Without Contrast70450 | 160 | $38 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 146 | $32 |
| X-Ray of Chest, 2 Views71046 | 90 | $10 |
| Complete Ultrasound Scan of Abdomen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2015-09-30
Frequently asked questions
- What is William Chu's NPI number?
- William Chu's National Provider Identifier (NPI) is 1124018551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chu's specialty?
- William Chu is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Chu located?
- William Chu's practice location on file with NPPES is 14148 Francisquito Ave, Baldwin Park, CA 91706-6120.
- What is William Chu's phone number?
- The practice phone number listed in the NPPES registry for William Chu is (213) 626-7816.
- Does William Chu accept Medicare?
- William Chu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Chu's NPI active?
- Yes — William Chu's NPI (1124018551) is active in the NPPES registry as of the last update on 2015-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.