Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Annessa Du

Individual provider Optometrist · NPI 1366008633

Annessa Du is registered under Optometry in Loma Linda, California. Graduated from University of California - School of Optometry in 2019, 7 years ago. Practices with Annessa Du, OD, a Professional Corporation, a 3-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
7
Trained at
University of California - School of Optometry
Licensed in
CA
In the registry since
2019
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Practice location Address checks out

11346 Mountain View Ave Ste B
Loma Linda, CA 92354-3833
Phone: (909) 796-0101
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5901 E 7th St, Long Beach, CA 90822-5201 — (844) 808-2020

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 34372 (CA)

Record details

NPI number1366008633
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 13, 2019
Last updated in NPPESJanuary 9, 2023
Certification dateJanuary 9, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolUNIVERSITY OF CALIFORNIA - SCHOOL OF OPTOMETRY
Graduated 2019 (7 years in practice)
Group practice Annessa Du, O.D., A Professional Corporation — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients140
Services billed 321 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Annessa Du, OD, a Professional Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Loma Linda