SIWEI DONG DO
NPI 1235690330
Surgery - Vascular Surgery in Orange, CA
About Siwei Dong Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIWEI DONG DO (NPI 1235690330) is an individual vascular surgery provider in Orange, California, licensed in California (A22413) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Cleveland, and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (2015).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Siwei Dong Do 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 Reassignment
Medicare enrollment records show Siwei Dong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 180 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92868 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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Siwei Dong's NPI number?
The NPI number for Siwei Dong is 1235690330. It was assigned to this individual provider in the NPPES registry on March 29, 2019.
Where is Siwei Dong located?
Siwei Dong practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Siwei Dong's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.
Is Siwei Dong enrolled in Medicare?
Yes. Siwei Dong 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 organization bills Medicare for Siwei Dong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Siwei Dong reassigns Medicare benefits to University Surgeons Of Orange A Medical Group (Orange, CA). The 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 Siwei Dong'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 Siwei Dong was last updated on October 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Siwei Dong, DO · NPI 1235690330
Vascular Surgery physician in Orange, California. Individual provider, active in the CMS NPPES registry since March 29, 2019.
## Identity
- **NPI:** 1235690330 (Entity type: Individual)
- **Enumerated:** March 29, 2019
- **Primary specialty:** Surgery - Vascular Surgery · taxonomy 2086S0129X
- **State license:** A22413 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-8888
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Surgeons Of Orange A Medical Group (NPI 1407806904, Orange, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Des Moines University Of Osteopathic Medicine And Health Sciences, class of 2015
## Record status
- **NPPES last updated:** October 16, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1235690330) · Data from the CMS NPPES public registry.