DR. BICH NGOC TRINH O.D
NPI 1215215686
Optometrist in Fremont, CA
About Dr. Bich Ngoc Trinh O.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BICH NGOC TRINH O.D (NPI 1215215686) is an individual optometrist in Fremont, California, licensed in Nevada (707) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS and is a graduate of Southern College Of Optometry (2011).
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
Dr. Bich Ngoc Trinh O.d 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
3Medicare enrollment records show Bich Trinh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sunnyvale, CA 94087
- Reassigned Medicare billing, California enrollment
- 12 clinicians in this Medicare group
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Jose, CA 95112
- Reassigned Medicare billing, California enrollment
- 12 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 94538 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.
FREMONT, CA 94538
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 Bich Trinh's NPI number?
The NPI number for Bich Trinh is 1215215686. It was assigned to this individual provider in the NPPES registry on August 2, 2011.
Where is Bich Trinh located?
Bich Trinh practices at 40924 Fremont Blvd, Fremont, CA 94538. The listed phone number is (510) 770-8040.
What is Bich Trinh's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Bich Trinh enrolled in Medicare?
Yes. Bich Trinh 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 Bich Trinh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Bich Trinh reassigns Medicare benefits to 3 organizations: Cindy H. Tran, Od, A Professional Optometric Corporation (Sunnyvale, CA), Permanente Medical Group Inc (Santa Clara, CA) and Sixth Optometric Care Of California PC (San Jose, 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 Bich Trinh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Bich Trinh 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 Bich Trinh 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 Bich Trinh was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Bich Ngoc Trinh, O.D · NPI 1215215686
Optometrist provider in Fremont, California. Individual provider, active in the CMS NPPES registry since August 2, 2011.
## Identity
- **NPI:** 1215215686 (Entity type: Individual)
- **Enumerated:** August 2, 2011
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 707 (Nevada)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 40924 FREMONT BLVD, Fremont, CA 94538-4375
- **Phone:** (510) 770-8040
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Cindy H. Tran, Od, A Professional Optometric Corporation (NPI 1730510165, Sunnyvale, CA); Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA); Sixth Optometric Care Of California PC (NPI 1033072863, San Jose, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern College Of Optometry, class of 2011
## Record status
- **NPPES last updated:** February 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1215215686) · Data from the CMS NPPES public registry.