Cato Chan
NPI 1477084648 · Diagnostic Radiology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cato Chan is a Diagnostic Radiology Physician provider in Orange, CA (NPI 1477084648).
Provider details
- NPI number
- 1477084648
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A164353 (CA)
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
9 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
685 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 of Blood Vessels of Chest With Contrast71275 | 143 | $87 |
| X-Ray of Chest, 1 View71045 | 137 | $9 |
| Ct Scan of Chest Without Contrast71250 | 130 | $52 |
| Ct Scan of Chest With Contrast71260 | 102 | $55 |
| Ct Scan of Chest Without Contrast71250 | 43 | $70 |
| X-Ray of Chest, 2 Views71046 | 38 | $11 |
| Ct Scan of Chest With Contrast71260 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-21
- Last updated
- 2024-08-16
- Certified
- 2024-08-16
Frequently asked questions
- What is Cato Chan's NPI number?
- Cato Chan's National Provider Identifier (NPI) is 1477084648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cato Chan's specialty?
- Cato Chan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Cato Chan located?
- Cato Chan's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Cato Chan's phone number?
- The practice phone number listed in the NPPES registry for Cato Chan is (714) 456-7237.
- Does Cato Chan accept Medicare?
- Cato Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cato Chan's NPI active?
- Yes — Cato Chan's NPI (1477084648) is active in the NPPES registry as of the last update on 2024-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.