DR. CHERYL C DUONG OD
NPI 1366935678
Optometrist in Fallbrook, CA
About Dr. Cheryl C Duong Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHERYL C DUONG OD (NPI 1366935678) is an individual optometrist in Fallbrook, California, licensed in California (34070TLG) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
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. Cheryl C 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 Cheryl Duong reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fallbrook, CA 92028
- Reassigned Medicare billing, California enrollment
- 25 clinicians in this Medicare group
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Lafayette, LA 70506
- Reassigned Medicare billing, Louisiana 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 92028 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Cheryl Duong's NPI number?
The NPI number for Cheryl Duong is 1366935678. It was assigned to this individual provider in the NPPES registry on June 11, 2018.
Where is Cheryl Duong located?
Cheryl Duong practices at 521 E Elder St Ste 102, Fallbrook, CA 92028. The listed phone number is (760) 728-5728.
What is Cheryl Duong's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Cheryl Duong enrolled in Medicare?
Yes. Cheryl 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 Cheryl Duong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cheryl Duong reassigns Medicare benefits to 3 organizations: Inland Eye Specialists A Medical Corp (Fallbrook, CA), Southern California Permanente Medical Group (San Diego, CA) and Azar Instruments Inc. (Lafayette, LA). 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 Cheryl Duong'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 Cheryl Duong was last updated on April 25, 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. Cheryl C Duong, OD · NPI 1366935678
Optometrist provider in Fallbrook, California. Individual provider, active in the CMS NPPES registry since June 11, 2018.
## Identity
- **NPI:** 1366935678 (Entity type: Individual)
- **Enumerated:** June 11, 2018
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 34070TLG (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 521 E ELDER ST STE 102, Fallbrook, CA 92028-3082
- **Phone:** (760) 728-5728
## 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): Inland Eye Specialists A Medical Corp (NPI 1962677013, Fallbrook, CA); Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA); Azar Instruments Inc. (NPI 1497878573, Lafayette, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** April 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1366935678) · Data from the CMS NPPES public registry.