Shawn Sun, MD
NPI 1942887575 · Diagnostic Radiology Physician · Orange, CA
Enrolled with Medicare as Order and Referring Only - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shawn Sun, MD is a Diagnostic Radiology Physician provider in Orange, CA (NPI 1942887575).
Provider details
- NPI number
- 1942887575
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A181998 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$298 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1411 E 31st StOakland, CA 94602-1018Phone: (626) 423-4688
Registry dates
- Enumerated
- 2021-03-28
- Last updated
- 2024-11-03
- Certified
- 2024-11-03
Frequently asked questions
- What is Shawn Sun's NPI number?
- Shawn Sun's National Provider Identifier (NPI) is 1942887575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shawn Sun's specialty?
- Shawn Sun is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Shawn Sun located?
- Shawn Sun's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Shawn Sun's phone number?
- The practice phone number listed in the NPPES registry for Shawn Sun is (626) 423-4688.
- Does Shawn Sun accept Medicare?
- Shawn Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shawn Sun's NPI active?
- Yes — Shawn Sun's NPI (1942887575) is active in the NPPES registry as of the last update on 2024-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.