Sean Chang, M.D.
NPI 1801108568 · Neuroradiology Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Chang, M.D. is a Neuroradiology Physician provider in Oxnard, CA (NPI 1801108568).
Provider details
- NPI number
- 1801108568
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD-54108 (IA)
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 tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
8 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,308 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Mri Scan of Brain Before and After Contrast70553 | 108 | $354 |
| X-Ray of Chest, 1 View71045 | 90 | $8 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 90 | $125 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 76 | $213 |
| Complete Ultrasound Scan Behind Abdominal Cavity76770 | 74 | $121 |
| Complete Ultrasound Scan of Abdomen76700 | 71 | $130 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$107 across 5 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 (7)
- 500 E Market StIowa City, IA 52245-2633Phone: (319) 339-3551
- 200 Hawkins DrIowa City, IA 52242-1009Phone: (319) 356-3375Fax: (319) 353-8780
- 701 W Forevergreen RdNorth Liberty, IA 52317-9848Phone: (319) 356-3375Fax: (319) 356-3949
- 6000 Hospital DrHannibal, MO 63401-6887Phone: (573) 248-5301Fax: (573) 248-5302
- 2305 37th Ave SwMinot, ND 58701-7669Phone: (701) 418-8000
- 1470 Sugarland Dr Ste 1Sheridan, WY 82801-5774Phone: (307) 673-2411
- 1401 W 5th StSheridan, WY 82801-2799Phone: (307) 672-1000
Registry dates
- Enumerated
- 2010-07-10
- Last updated
- 2026-01-27
- Certified
- 2026-01-27
Frequently asked questions
- What is Sean Chang's NPI number?
- Sean Chang's National Provider Identifier (NPI) is 1801108568, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Chang's specialty?
- Sean Chang is listed in the NPPES registry with a primary specialty of Neuroradiology Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Chang located?
- Sean Chang's practice location on file with NPPES is 1901 Outlet Center Dr, Oxnard, CA 93036-0663.
- What is Sean Chang's phone number?
- The practice phone number listed in the NPPES registry for Sean Chang is (805) 604-9500.
- Does Sean Chang accept Medicare?
- Sean Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Chang's NPI active?
- Yes — Sean Chang's NPI (1801108568) is active in the NPPES registry as of the last update on 2026-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.