HERRICK DUONG OD
NPI 1255959359
Optometrist in San Diego, CA
About Herrick Duong Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HERRICK DUONG OD (NPI 1255959359) is an individual optometrist in San Diego, California, licensed in California (34520TLG) and active in the NPI registry since July 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).
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
Herrick Duong Od 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 Herrick Duong reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92108
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
San Bernardino, CA 92408
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Montebello, CA 90640
- Reassigned Medicare billing, California enrollment
- 2 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 92161 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 Herrick Duong's NPI number?
The NPI number for Herrick Duong is 1255959359. It was assigned to this individual provider in the NPPES registry on July 6, 2020.
Where is Herrick Duong located?
Herrick Duong practices at 3350 La Jolla Village Dr # 112G, San Diego, CA 92161. The listed phone number is (858) 552-8585.
What is Herrick Duong's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Herrick Duong enrolled in Medicare?
Yes. Herrick Duong 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 Herrick Duong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Herrick Duong reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (San Diego, CA), Dr Julie Phan Od Inc (San Bernardino, CA) and Maria Esther Salado, O.D., Inc. (Montebello, 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 Herrick Duong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Herrick Duong 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 Herrick Duong 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 Herrick Duong was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Herrick Duong, OD · NPI 1255959359
Optometrist provider in San Diego, California. Individual provider, active in the CMS NPPES registry since July 6, 2020.
## Identity
- **NPI:** 1255959359 (Entity type: Individual)
- **Enumerated:** July 6, 2020
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 34520TLG (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3350 LA JOLLA VILLAGE DR # 112G, San Diego, CA 92161-0002
- **Phone:** (858) 552-8585
## 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): Southern California Permanente Medical Group (NPI 1023425972, San Diego, CA); Dr Julie Phan Od Inc (NPI 1013452234, San Bernardino, CA); Maria Esther Salado, O.D., Inc. (NPI 1376203364, Montebello, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** August 5, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1255959359) · Data from the CMS NPPES public registry.