TINA NGUYEN OD
NPI 1255942207
Optometrist in Costa Mesa, CA
About Tina Nguyen Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TINA NGUYEN OD (NPI 1255942207) is an individual optometrist in Costa Mesa, California, licensed in California (34617) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tina Nguyen Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Tina Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chino Hills, CA 91709
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Norco, CA 92860
- Reassigned Medicare billing, California enrollment
- 5 clinicians in this Medicare group
Santa Monica, CA 90405
- Reassigned Medicare billing, California enrollment
- 4 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 92627 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COSTA MESA, CA 92627
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 Tina Nguyen's NPI number?
The NPI number for Tina Nguyen is 1255942207. It was assigned to this individual provider in the NPPES registry on August 13, 2020.
Where is Tina Nguyen located?
Tina Nguyen practices at 1696 Newport Blvd Ste D, Costa Mesa, CA 92627. The listed phone number is (949) 574-0200.
What is Tina Nguyen's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Tina Nguyen enrolled in Medicare?
Yes. Tina Nguyen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Tina Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tina Nguyen reassigns Medicare benefits to 3 organizations: Chino Hills Optometry Inc (Chino Hills, CA), Norco Valley Optometry, Inc (Norco, CA) and Dr Sarah K Ito O D A Professional Corporation (Santa Monica, 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 Tina Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tina Nguyen accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Tina Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Tina Nguyen was last updated on July 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.