JULIE SUN M.D.
NPI 1629036819
Radiology - Diagnostic Radiology in Downey, CA
About Julie Sun M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JULIE SUN M.D. (NPI 1629036819) is an individual diagnostic radiology provider in Downey, California, licensed in California (G72009) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (1990).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Julie Sun M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Julie Sun reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Downey, CA 90241
- Reassigned Medicare billing, California enrollment
- 6 clinicians in this Medicare group
La Mirada, CA 90638
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Beverly Radiology Medical Group Iii
- Also billed through NPI 1093998122 (California), NPI 1962457812 (California)
- 349 clinicians in this Medicare group
Monterey Park, CA 91754
- Reassigned Medicare billing, California enrollment
San Gabriel, CA 91776
- Reassigned Medicare billing, California enrollment
- 21 clinicians in this Medicare group
Northridge, CA 91325
- Reassigned Medicare billing, California enrollment
- 224 clinicians in this Medicare group
Palm Desert, CA 92260
- Reassigned Medicare billing, California enrollment
- 278 clinicians in this Medicare group
Houston, TX 77002
- Reassigned Medicare billing, California enrollment
- 244 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 76
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90241 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOWNEY, CA 90241
DOWNEY, CA 90241
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Julie Sun's NPI number?
The NPI number for Julie Sun is 1629036819. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is Julie Sun located?
Julie Sun practices at 11500 Brookshire Ave, Downey, CA 90241. The listed phone number is (562) 904-5000.
What is Julie Sun's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Julie Sun enrolled in Medicare?
Yes. Julie Sun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Julie Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Julie Sun reassigns Medicare benefits to 7 organizations: Downey Radiology Associates (Downey, CA), Beverly Radiology Medical Group (La Mirada, CA), Julie K Sun MD, Inc (Monterey Park, CA), David C P Chen, M.D., Inc (San Gabriel, CA), Renaissance Imaging Medical Associates, Inc. (Northridge, CA) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Julie Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Julie Sun was last updated on November 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.