TIEN LU
NPI 1942816202
Emergency Medicine in Orange, CA
About Tien Lu NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIEN LU (NPI 1942816202) is an individual emergency medicine provider in Orange, California, licensed in California (PTL10442) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (2022).
NPPES Registry Identity
Specialties & Licenses
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
Tien Lu 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 Tien Lu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 197 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 Tien Lu's NPI number?
The NPI number for Tien Lu is 1942816202. It was assigned to this individual provider in the NPPES registry on September 21, 2020.
Where is Tien Lu located?
Tien Lu practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-5239.
What is Tien Lu's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Tien Lu enrolled in Medicare?
Yes. Tien Lu 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 Tien Lu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tien Lu reassigns Medicare benefits to Emergency Physicians Associates San Jose PC (San Jose, 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 Tien Lu'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 Tien Lu was last updated on August 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Tien Lu · NPI 1942816202
Emergency Medicine physician in Orange, California. Individual provider, active in the CMS NPPES registry since September 21, 2020.
## Identity
- **NPI:** 1942816202 (Entity type: Individual)
- **Enumerated:** September 21, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** PTL10442 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-5239
## 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:** Emergency Physicians Associates San Jose PC (NPI 1306311576, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 2022
## Record status
- **NPPES last updated:** August 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1942816202) · Data from the CMS NPPES public registry.