DR. TRACY WONG O.D.
NPI 1821177239
Optometrist in El Segundo, CA
About Dr. Tracy Wong O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TRACY WONG O.D. (NPI 1821177239) is an individual optometrist in El Segundo, California, licensed in California (12873 T) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Southern California College Of Optometry (2005).
NPPES Registry Identity
Specialties & Licenses
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. Tracy Wong 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 Reassignment
Medicare enrollment records show Tracy Wong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Signal Hill, CA 90755
- Reassigned Medicare billing, California enrollment
- 8 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 90245 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 Tracy Wong's NPI number?
The NPI number for Tracy Wong is 1821177239. It was assigned to this individual provider in the NPPES registry on November 4, 2006.
Where is Tracy Wong located?
Tracy Wong practices at 2101 Rosecrans Ave, El Segundo, CA 90245. The listed phone number is (310) 321-6990.
What is Tracy Wong's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Tracy Wong enrolled in Medicare?
Yes. Tracy Wong 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 Tracy Wong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tracy Wong reassigns Medicare benefits to Marsha Howard Optometric Corp (Signal Hill, 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 Tracy Wong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Tracy Wong was last updated on February 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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. Tracy Wong, O.D. · NPI 1821177239
Optometrist provider in El Segundo, California. Individual provider, active in the CMS NPPES registry since November 4, 2006.
## Identity
- **NPI:** 1821177239 (Entity type: Individual)
- **Enumerated:** November 4, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 12873 T (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2101 ROSECRANS AVE, El Segundo, CA 90245-4749
- **Phone:** (310) 321-6990
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Marsha Howard Optometric Corp (NPI 1437892957, Signal Hill, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern California College Of Optometry, class of 2005
## Record status
- **NPPES last updated:** February 12, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1821177239) · Data from the CMS NPPES public registry.