Julie Sun, M.D.
NPI 1629036819 · Diagnostic Radiology Physician · Downey, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Sun, M.D. is a Diagnostic Radiology Physician provider in Downey, CA (NPI 1629036819).
Provider details
- NPI number
- 1629036819
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G72009 (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
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
10,274 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) |
|---|---|---|
| Screening Mammography77067 | 2,166 | $145 |
| Screening 3d Breast Mammography77063 | 1,645 | $57 |
| X-Ray of Chest, 2 Views71046 | 707 | $38 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 608 | $44 |
| Complete Ultrasound Scan of Abdomen76700 | 466 | $131 |
| Complete Ultrasound Scan of 1 Breast76641 | 380 | $143 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-04
- Last updated
- 2025-11-05
- Certified
- 2025-11-05
Frequently asked questions
- What is Julie Sun's NPI number?
- Julie Sun's National Provider Identifier (NPI) is 1629036819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Sun's specialty?
- Julie Sun is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Julie Sun located?
- Julie Sun's practice location on file with NPPES is 11500 Brookshire Ave, Downey, CA 90241-4917.
- What is Julie Sun's phone number?
- The practice phone number listed in the NPPES registry for Julie Sun is (562) 904-5000.
- Does Julie Sun accept Medicare?
- Julie Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Sun's NPI active?
- Yes — Julie Sun's NPI (1629036819) is active in the NPPES registry as of the last update on 2025-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.