CHRISTIE NGUYEN
NPI 1740792993
Optometrist in Concord, CA
About Christie Nguyen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTIE NGUYEN (NPI 1740792993) is an individual optometrist in Concord, California, licensed in California (33838TLG) and active in the NPI registry since October 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
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 and accepts Medicare assignment
Christie Nguyen 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 Christie Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
San Leandro, CA 94577
- 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94520 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Christie Nguyen's NPI number?
The NPI number for Christie Nguyen is 1740792993. It was assigned to this individual provider in the NPPES registry on October 27, 2017.
Where is Christie Nguyen located?
Christie Nguyen practices at 901 Sunvalley Blvd Ste 110, Concord, CA 94520. The listed phone number is (925) 676-5638.
What is Christie Nguyen's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Christie Nguyen enrolled in Medicare?
Yes. Christie Nguyen 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 Christie Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christie Nguyen reassigns Medicare benefits to 2 organizations: For Your Eyes Only Ophthalmic Medical Corp. (Walnut Creek, CA) and Bay Area Ophthalmic Medical Corporation (San Leandro, 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 Christie Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Christie Nguyen accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 3 other insurers list Christie 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 Christie Nguyen was last updated on October 27, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Christie Nguyen · NPI 1740792993
Optometrist provider in Concord, California. Individual provider, active in the CMS NPPES registry since October 27, 2017.
## Identity
- **NPI:** 1740792993 (Entity type: Individual)
- **Enumerated:** October 27, 2017
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 33838TLG (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 901 SUNVALLEY BLVD STE 110, Concord, CA 94520-5816
- **Phone:** (925) 676-5638
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): For Your Eyes Only Ophthalmic Medical Corp. (NPI 1386034452, Walnut Creek, CA); Bay Area Ophthalmic Medical Corporation (NPI 1144513805, San Leandro, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** October 27, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1740792993) · Data from the CMS NPPES public registry.