ANH TRAM TONNU O.D. (OPTOMETRIST)
NPI 1679521280
Optometrist in San Diego, CA
About Anh Tram Tonnu O.d. (optometrist) NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANH TRAM TONNU O.D. (OPTOMETRIST) (NPI 1679521280) is an individual optometrist in San Diego, California, licensed in California (11318T) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Anh Tram Tonnu O.d. (optometrist) 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 Anh Tonnu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 83 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 92115 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92115
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 Anh Tonnu's NPI number?
The NPI number for Anh Tonnu is 1679521280. It was assigned to this individual provider in the NPPES registry on May 5, 2006.
Where is Anh Tonnu located?
Anh Tonnu practices at 6945 El Cajon Blvd, San Diego, CA 92115. The listed phone number is (800) 898-2020.
What is Anh Tonnu's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Anh Tonnu enrolled in Medicare?
Yes. Anh Tonnu 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 Anh Tonnu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anh Tonnu reassigns Medicare benefits to Retina Institute Of California Medical Group, A California Medical Par (Pasadena, 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 Anh Tonnu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anh Tonnu accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Anh Tonnu 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 Anh Tonnu was last updated on December 1, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Anh Tram Tonnu, O.D. (OPTOMETRIST) · NPI 1679521280
Optometrist provider in San Diego, California. Individual provider, active in the CMS NPPES registry since May 5, 2006.
## Identity
- **NPI:** 1679521280 (Entity type: Individual)
- **Enumerated:** May 5, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 11318T (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6945 EL CAJON BLVD, San Diego, CA 92115-1754
- **Phone:** (800) 898-2020
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Retina Institute Of California Medical Group, A California Medical Par (NPI 1760541569, Pasadena, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** December 1, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1679521280) · Data from the CMS NPPES public registry.