ANNESSA DU, O.D., A PROFESSIONAL CORPORATION
NPI 1194430074
Optometrist in Loma Linda, CA
About Annessa Du, O.d., A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNESSA DU, O.D., A PROFESSIONAL CORPORATION (NPI 1194430074) is a healthcare organization registered as an optometrist in Loma Linda, California and active in the NPI registry since January 2023. The organization lists Annessa Du, Chief Executive Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Annessa Du, O.d., A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Annessa Du, O.D., A Professional Corporation, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (3)
Loma Linda, CA 92354
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Annessa Du, O.D., A Professional Corporation's NPI number?
The NPI number for Annessa Du, O.D., A Professional Corporation is 1194430074. It was assigned to this organization in the NPPES registry on January 16, 2023.
Where is Annessa Du, O.D., A Professional Corporation located?
Annessa Du, O.D., A Professional Corporation is located at 11346 Mountain View Ave Ste B, Loma Linda, CA 92354. The listed phone number is (909) 796-0101.
What is Annessa Du, O.D., A Professional Corporation's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Annessa Du, O.D., A Professional Corporation enrolled in Medicare?
Yes. Annessa Du, O.D., A Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Annessa Du, O.D., A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Optometry, reassign their Medicare billing to Annessa Du, O.D., A Professional Corporation. A 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 the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Annessa Du, O.D., A Professional Corporation accept?
Health plans from Anthem Blue Cross and Blue Shield and BlueCross BlueShield of Tennessee list Annessa Du, O.D., A Professional Corporation 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 Annessa Du, O.D., A Professional Corporation was last updated on January 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Annessa Du, O.d., A Professional Corporation · NPI 1194430074
Optometrist organization in Loma Linda, California. Organization record, active in the CMS NPPES registry since January 16, 2023.
## Identity
- **NPI:** 1194430074 (Entity type: Organization)
- **Enumerated:** January 16, 2023
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **Organization subpart:** No
- **Authorized official:** Annessa Du, CHIEF EXECUTIVE OFFICER
## Practice location
- **Address:** 11346 MOUNTAIN VIEW AVE STE B, Loma Linda, CA 92354-3833
- **Phone:** (909) 796-0101
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians (Optometry) reassign Medicare billing to this organization (form CMS-855R); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 29, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1194430074) · Data from the CMS NPPES public registry.