DR. CHRISTOPHER VU DO
NPI 1891146643
Hospitalist in Orange, CA
About Dr. Christopher Vu Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER VU DO (NPI 1891146643) is an individual hospitalist provider in Orange, California, licensed in California (20A16730) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Bakersfield, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Christopher Vu 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 Reassignments
2Medicare enrollment records show Christopher Vu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 250 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 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 Christopher Vu's NPI number?
The NPI number for Christopher Vu is 1891146643. It was assigned to this individual provider in the NPPES registry on June 23, 2016.
Where is Christopher Vu located?
Christopher Vu practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Christopher Vu's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Christopher Vu enrolled in Medicare?
Yes. Christopher Vu 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 Christopher Vu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Vu reassigns Medicare benefits to 2 organizations: The Regents Of The University Of California-Irvine (Orange, CA) and Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA). 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 Christopher Vu'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 Christopher Vu was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.
# Dr. Christopher Vu, DO · NPI 1891146643
Hospitalist physician in Orange, California. Individual provider, active in the CMS NPPES registry since June 23, 2016.
## Identity
- **NPI:** 1891146643 (Entity type: Individual)
- **Enumerated:** June 23, 2016
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 20A16730 (California)
- **Sole proprietor:** No
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The Regents Of The University Of California-Irvine (NPI 1154479723, Orange, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** August 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1891146643) · Data from the CMS NPPES public registry.