DAGNY ZHU LUONG M D INC
NPI 1891645750
Ophthalmology - Cornea and External Diseases Specialist in Orange, CA
About Dagny Zhu Luong M D Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAGNY ZHU LUONG M D INC (NPI 1891645750) is a healthcare organization registered as a cornea and external diseases specialist in Orange, California and active in the NPI registry since January 2026. The organization lists Dagny Zhu Luong, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dagny Zhu Luong M D Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Dagny Zhu Luong M D Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Dagny Zhu Luong M D Inc's NPI number?
The NPI number for Dagny Zhu Luong M D Inc is 1891645750. It was assigned to this organization in the NPPES registry on January 30, 2026.
Where is Dagny Zhu Luong M D Inc located?
Dagny Zhu Luong M D Inc is located at 1010 W La Veta Ave Ste 615, Orange, CA 92868. The listed phone number is (714) 983-5001.
What is Dagny Zhu Luong M D Inc's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.
Is Dagny Zhu Luong M D Inc enrolled in Medicare?
Yes. Dagny Zhu Luong M D Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Dagny Zhu Luong M D Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Dagny Zhu Luong M D Inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Dagny Zhu Luong M D Inc was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dagny Zhu Luong M D Inc · NPI 1891645750
Cornea and External Diseases Specialist organization in Orange, California. Organization record, active in the CMS NPPES registry since January 30, 2026.
## Identity
- **NPI:** 1891645750 (Entity type: Organization)
- **Enumerated:** January 30, 2026
- **Primary specialty:** Ophthalmology - Cornea and External Diseases Specialist · taxonomy 207WX0120X
- **Organization subpart:** No
- **Authorized official:** Dagny Luong, PRESIDENT
## Practice location
- **Address:** 1010 W LA VETA AVE STE 615, Orange, CA 92868-4310
- **Phone:** (714) 983-5001
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Ophthalmology) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1891645750) · Data from the CMS NPPES public registry.