KATHY TRINH HOANG O.D.
NPI 1346904935
Optometrist in Mission Viejo, CA
About Kathy Trinh Hoang O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHY TRINH HOANG O.D. (NPI 1346904935) is an individual optometrist in Mission Viejo, California, licensed in California (OPT35047-TLG) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
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
Kathy Trinh Hoang 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 Kathy Hoang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mission Viejo, CA 92691
- Reassigned Medicare billing, California enrollment
Lake Forest, CA 92630
- Reassigned Medicare billing, California enrollment
- 67 clinicians in this Medicare group
Whittier, CA 90602
- Reassigned Medicare billing, California enrollment
- 6 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 92691 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Kathy Hoang's NPI number?
The NPI number for Kathy Hoang is 1346904935. It was assigned to this individual provider in the NPPES registry on October 29, 2021.
Where is Kathy Hoang located?
Kathy Hoang practices at 25982 Pala Ste 270, Mission Viejo, CA 92691. The listed phone number is (949) 951-1424.
What is Kathy Hoang's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Kathy Hoang enrolled in Medicare?
Yes. Kathy Hoang 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 Kathy Hoang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathy Hoang reassigns Medicare benefits to 3 organizations: (Mission Viejo, CA), Fifth Optometric Care Of California (Lake Forest, CA) and Mercy Eye Care Medical Group Inc (Whittier, 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 Kathy Hoang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathy Hoang 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 Kathy Hoang 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 Kathy Hoang was last updated on October 29, 2021. 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.
# Kathy Trinh Hoang, O.D. · NPI 1346904935
Optometrist provider in Mission Viejo, California. Individual provider, active in the CMS NPPES registry since October 29, 2021.
## Identity
- **NPI:** 1346904935 (Entity type: Individual)
- **Enumerated:** October 29, 2021
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OPT35047-TLG (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 25982 PALA STE 270, Mission Viejo, CA 92691-6726
- **Phone:** (949) 951-1424
## 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): (NPI 1659306330, Mission Viejo, CA); Fifth Optometric Care Of California (NPI 1275319451, Lake Forest, CA); Mercy Eye Care Medical Group Inc (NPI 1982926531, Whittier, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** October 29, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1346904935) · Data from the CMS NPPES public registry.