NPPES file of Aug 9, 2026

Diemkhanh Mary Dinhluu, O.D.

Optometrist · Santa Ana, CA

Diemkhanh Mary Dinhluu, O.D. is an optometrist with a practice address in Santa Ana, California, and NPI 1851496095, issued on Sep 13, 2006. Check the license (California OPT100277PA, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851496095
Name
Diemkhanh Mary Dinhluu
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
OPT100277PA CA
Self-reported in NPPES; status is on the state search
Practice location
2414 S Fairview St Ste 103, Santa Ana, CA 92704
Phone
(714) 557-9492
Enumerated
Sep 13, 2006
Record last updated
Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(714) 557-2548
Medicare enrollment
Enrolled (PECOS I20060302000592); accepts Medicare assignment
Medical or professional school
Southern California College Of Optometry, 1992
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2414 S Fairview St Ste 103

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michael Fimreite, O.D.Optometrist1871944025

Verify Diemkhanh Mary Dinhluu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license OPT100277PA
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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50% fewer Medicare Part D claims than the average optometrist in 2024

138 Medicare Part D claims for 59 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 59% of claims.

  1. Diemkhanh Dinhluu138
  2. Specialty average277

Most prescribed

  1. Cyclosporine69 claims
  2. Erythromycin28 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupAnaheim, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diemkhanh Mary Dinhluu among 8,308 optometrist records in California

Diemkhanh Mary Dinhluu, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 66% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated1992 · median 2008 among the 3,573 with a school on file
  • Record last updated2021 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in California

There are 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Patricia Atie, O.D., F.C.O.V.D.Santa Ana, CA 927041255435517
  2. Clara Damian-Santana, O.D.Santa Ana, CA 927041215224241
  3. Nhan Do, O.D.Santa Ana, CA 927041689805830
  4. Jeffrey Duncan, O.D.Santa Ana, CA 927041407846207
  5. Mylinh Duncan, D.O.Santa Ana, CA 927041598755498
  6. Jeffrey Fimreite, ODSanta Ana, CA 927041437253705
  7. Suzann Michaels, O.D.Santa Ana, CA 927041871654855
  8. Anh-Linh Nguyen, ODSanta Ana, CA 927041124016183

Common questions

What is Diemkhanh Mary Dinhluu, O.D.'s NPI number?

Diemkhanh Mary Dinhluu, O.D.'s National Provider Identifier (NPI) is 1851496095, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diemkhanh Mary Dinhluu, O.D. located?

The NPPES record lists a practice address at 2414 S Fairview St Ste 103, Santa Ana, CA, 92704. Phone: (714) 557-9492. Providers update this record themselves, so call before visiting.

How can I verify Diemkhanh Mary Dinhluu, O.D.'s license?

NPPES lists California license number OPT100277PA, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Diemkhanh Mary Dinhluu, O.D. prescribe under Medicare Part D?

In 2024, Diemkhanh Mary Dinhluu, O.D. had 138 Medicare Part D claims for 59 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.